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Idaho population, growth and demographics

Idaho had a population of 2,029,733 on July 1, 2025, the 15th smallest of the 50 states and DC, according to the Census Bureau's latest official estimates (Vintage 2025). Between July 2024 and July 2025 the population grew by 28,861 people (+1.44%), and the state now has 190,610 more residents than in April 2020 (+10.36%).1

West region, Mountain division

In 2025 the population was 76.0% white, 14.6% Hispanic or Latino and 5.3% two or more races (all groups other than Hispanic are non-Hispanic).2 The median age is 37.9 years3, the median household income $84,2344 and the poverty rate 9.7%5.

Other official counts of Idaho's population
Official population figures for Idaho
MeasurePeople
Population estimate, July 1, 2025 (headline)2,029,733
Population estimate, July 1, 20242,000,872
2020 Census count, April 1, 20201,839,106
Estimates base, April 1, 20201,839,123
American Community Survey, 2025 1-year2,029,733
American Community Survey, 2020–2024 5-year average1,934,262

Source: Census Bureau, Population Estimates Program, Vintage 2025; Census Bureau, 2020 Census apportionment results and historical resident population 1910-2020; Census Bureau, American Community Survey 1-year estimates, 2025, table B01003; Census Bureau, American Community Survey 5-year estimates, 2020-2024, table B01003. The July 2025 estimate is the official current figure. The census is a count at one date; the estimates carry it forward with births, deaths and migration; the ACS is a survey weighted to the estimates, so its total is shown with a margin of error (±, 90% confidence) or controlled to the estimate.

No state has grown faster than Idaho since the 2020 Census, in percentage terms. Most of the new residents come from other states, many of them from Washington and California. Idaho is also a state of married couples and children: few people live alone, and women have more children than in almost any other state.

Data as of October 29, 2026 (newest release used on this page).

Between the 2020 Census and July 2025, Idaho's population grew by 10.36%, the highest in the nation and well ahead of Florida (8.93%) and South Carolina (8.83%). The country as a whole grew by 3.10% over the same period. In absolute terms the gain was 190,610 people, the 13th highest increase: Idaho is a small state, 15th smallest1 by population, so its growth stands out more in percent than in head counts.

A small state with a long growth streak

The fast pace is not new. Between the 2010 and 2020 censuses Idaho grew by 17.3%, 2nd highest after Utah (18.4%) and 9.9 percentage points above the US figure (7.4%). The population is now 1.6 times its size at the 2000 Census (1,293,9536) and 3.4 times1 its 1950 count (588,6379).

Population since 2000: Idaho, Utah, Montana, Washington and the US (2000 = 100)
Population since 2000: Idaho, Utah, Montana, Washington and the US (2000 = 100). Idaho: 100.0 in 2000 to 156.2 in 2025; Utah: 100.0 in 2000 to 157.7 in 2025; Montana: 100.0 in 2000 to 126.7 in 2025; Washington: 100.0 in 2000 to 135.4 in 2025; United States: 100.0 in 2000 to 121.1 in 2025100.0120.0140.02000200720142025

Source: Census Bureau, Intercensal Estimates of the Resident Population for States, 2000-2010; Census Bureau, Intercensal Estimates of the Resident Population for States, 2010-2020; Census Bureau, Population Estimates Program, Vintage 2025. July 1 estimates: intercensal series for 2000–2019, Vintage 2025 for 2020–2025.

Show the numbers
YearIdahoUtahMontanaWashingtonUnited States
2000100.0100.0100.0100.0100.0
2001101.6101.7100.4101.3101.0
2002103.2103.6100.9102.4101.9
2003104.9105.2101.8103.3102.8
2004107.1107.0102.9104.5103.8
2005109.9109.5104.0105.9104.7
2006113.0112.5105.4107.8105.7
2007115.8115.7106.7109.3106.8
2008118.1118.6108.0111.0107.8
2009119.6121.3108.9112.8108.7
2010120.9123.7109.6114.1109.6
2011122.1125.6110.5115.6110.5
2012123.2127.5111.3116.8111.4
2013124.6129.6112.4118.0112.2
2014126.3131.5113.4119.6113.1
2015128.0133.7114.5121.5114.1
2016130.6136.5115.7123.8115.0
2017133.5139.3117.1126.0115.8
2018136.2141.8118.0127.7116.4
2019139.2144.0119.0129.2117.0
2020142.3146.3120.3130.7117.5
2021146.6148.8122.4131.0117.7
2022149.5151.2124.1131.7118.4
2023151.6153.7125.1132.6119.3
2024154.0156.1125.9134.1120.5
2025156.2157.7126.7135.4121.1

The census record starts in 1870, with 14,999 people counted in the area of the present state. Growth was slow for much of the 20th century: the count rose only from 431,866 in 1920 to 712,5679 in 1970.

Population of Idaho, 1870–2025
Population of Idaho, 1870–2025. Idaho: 15K in 1870 to 2.0M in 202501.0M2.0M1870192019702025

Source: Census Bureau, Historical Census Statistics on Population Totals by Race, 1790 to 1990; Census Bureau, 2020 Census apportionment results and historical resident population 1910-2020; Census Bureau, Population Estimates Program, Vintage 2025. Census counts every ten years (April 1); estimates for July 1 after 2020.

Show the numbers
YearIdaho
187014,999
188032,610
189088,548
1900161,772
1910325,594
1920431,866
1930445,032
1940524,873
1950588,637
1960667,191
1970712,567
1980943,935
19901,006,749
20001,293,953
20101,567,582
20201,839,106
20211,904,855
20221,942,951
20231,970,497
20242,000,872
20252,029,733

Idaho has 2 seats in the US House of Representatives. Its 2020 apportionment population per seat, 920,688, was the 2nd highest of any state after Delaware12. This page covers the state as a whole; figures for cities such as Boise, Twin Falls, Rexburg and Moscow are published in the Census Bureau's QuickFacts.

Where Idaho's new residents come from

In the year to June 2025, Idaho gained 19,915 more residents from other states than it lost. Relative to its population that is 9.9 per 1,000 residents, the 2nd highest rate in the country after South Carolina (12.1 per 1,000 residents) and higher than every bordering state (Montana, Nevada, Oregon, Utah, Washington and Wyoming)1.

Net domestic migration per 1,000 residents, July 2024 to June 2025: the ten highest rates

Source: Census Bureau, Population Estimates Program, Vintage 2025. Period: July 1, 2024 to June 30, 2025.

Show the numbers
StateNet domestic migration rate per 1,000
South Carolina12.1
Idaho9.9
North Carolina7.6
Delaware6.5
Tennessee5.8
Montana5.6
Maine5.3
Arkansas4.7
New Hampshire4.6
Nevada4.6

Moves from other states made up 69% of the year's population gain. Births in excess of deaths supplied 24% and net international migration only 7%1.

The domestic inflow peaked early. Idaho gained 52,350 people from other states in the year to June 2021, then 28,019 in 2022, 14,713 in 2023 and 15,975 in 2024, before the rise to 19,915 in 2025. Over the full period from April 2020 to June 2025 the net gain from other states was 139,784, against 24,146 from abroad and a natural increase of 28,5101.

How Idaho's population changed, April 2020 to July 2025
Births+118,599
Deaths−90,089
Net domestic migration+139,784
Net international migration+24,146
Residual (estimation adjustment)−1,830
Total change+190,610

Source: Census Bureau, Population Estimates Program, Vintage 2025. Each bar starts where the previous one ended. The residual is the part of the change the Census Bureau cannot assign to a component.

Show the numbers
ComponentPeople
Births118,599
Deaths−90,089
Net domestic migration139,784
Net international migration24,146
Residual (estimation adjustment)−1,830
Total change190,610

The Census Bureau's survey of individual movers shows where the newcomers lived before. In 2024, Washington and California sent the most people to Idaho, followed by Utah, Arizona and Oregon. Many people also moved the other way: the most common destinations of departing Idahoans were Utah, Washington, California and Arizona. These survey counts carry wide margins of error, so the order among the smaller states is not certain. In total 72,442 people moved in from other states and 60,12713 moved out.

Top origins and destinations of people moving to and from Idaho, 2024

Moved to Idaho from

Washington17,837 ±3,554
California15,385 ±2,919
Utah5,417 ±1,302
Arizona4,511 ±1,645
Oregon4,206 ±1,226
Nevada3,270 ±1,674
Colorado2,295 ±1,050
Montana2,214 ±1,018

Left Idaho for

Utah8,393 ±2,579
Washington7,927 ±1,960
California6,509 ±1,562
Arizona5,130 ±2,437
Oregon4,397 ±1,638
Texas3,374 ±1,645
Colorado2,345 ±1,075
Nevada2,150 ±766

Source: Census Bureau, State-to-State Migration Flows, 2024. People aged 1 and over who lived in another state a year earlier (and the reverse). Survey estimates: whiskers show the 90% margin of error.

Show the numbers
StateMoved in fromMoved out to
Washington17,837 ±3,5547,927 ±1,960
California15,385 ±2,9196,509 ±1,562
Utah5,417 ±1,3028,393 ±2,579
Arizona4,511 ±1,6455,130 ±2,437
Oregon4,206 ±1,2264,397 ±1,638
Nevada3,270 ±1,6742,150 ±766
Colorado2,295 ±1,0502,345 ±1,075
Montana2,214 ±1,018–
Texas2,169 ±1,1853,374 ±1,645

On tax returns filed for 2022 and 2023, Idaho gained 12,739 more filers and dependents than it lost, higher than every bordering state (Montana, Nevada, Oregon, Utah, Washington and Wyoming)14.

Decades of moves show in where residents were born. Only 44.5% of Idahoans were born in Idaho (±1.0 percentage points), 11.9 percentage points below the US figure (56.4%). Another 34.4% were born elsewhere in the West, against 5.6% of all US residents. Smaller shares were born in the Midwest (6.4%), the South (5.3%) and the Northeast (2.4%15), all below the corresponding national shares.

Latter-day Saints, Catholics and Evangelicals

Searches about Idaho often ask what share of residents are Mormon, LDS, Catholic or Christian. The census does not collect religious affiliation, but the U.S. Religion Census gathers counts from the religious bodies themselves. In 2020 The Church of Jesus Christ of Latter-day Saints counted 462,069 Idahoans, 25.1% of the population and 47.6% of everyone on a congregation's books in the state. Catholic parishes counted 11.1%, up from 7.9% in 2010, and Evangelical Protestant churches 12.4%16.

Religious traditions in Idaho, 2020
TraditionAdherentsShare of residentsUS shareShare of adherents
Other traditions486,57126.5%5.7%50.2%
Evangelical Protestant227,91112.4%16.5%23.5%
Catholic203,79011.1%18.7%21.0%
Mainline Protestant49,3822.7%5.2%5.1%
Black Protestant1,1860.06%2.2%0.12%
Orthodox Christian1,0610.06%0.35%0.11%
All adherents969,90152.7%48.6%100%

Source: Association of Religion Data Archives (ARDA), U.S. Religion Census. Traditions as classified by the ARDA (Steensland et al. scheme; "Other" includes Latter-day Saints, Jehovah's Witnesses, Jewish, Muslim, Hindu and Buddhist groups). Adherents are counted by religious bodies for their congregations (members, children and others who take part, as each body defines them), not a survey of what people believe; some bodies did not take part or were estimated, and one person can be counted by more than one body. Shares use the 2020 Census population.

In this study's grouping, Christian congregations, Latter-day Saints included, counted 52.4% of residents. All bodies together counted 52.7%, higher than Montana, Nevada, Oregon, Washington and Wyoming; lower than Utah16. The numbers describe congregational membership, not personal belief, and some churches did not report; the religion overview sets out the limits.

What percent of Idaho is white, Hispanic, Black and Native American

Non-Hispanic white residents made up 76.0% of Idaho's population in 2025 (±0.3 percentage points), 21.0 percentage points above the US figure (55.0%). The share was 86.9%17 in 2005, and the 2025 figure is down from 77.8% in 2024. Hispanic or Latino residents of any race were 14.6%, up from 14.3% in 2024, and non-Hispanic residents of two or more races 5.3%2.

Race and Hispanic origin in Idaho, 2025
White, not Hispanic76.0% 90.3%
Hispanic or Latino (any race)14.6%
Two or more races, not Hispanic5.3%
Asian, not Hispanic1.6% 3.2%
American Indian and Alaska Native, not Hispanic0.9% 3.9%
Black, not Hispanic0.8% 1.8%
Some other race, not Hispanic0.6%
Native Hawaiian and Pacific Islander, not Hispanic0.1% 0.6%

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B03002; Census Bureau, American Community Survey 1-year estimates, 2025, table B02009. The dark bars are mutually exclusive and add to 100%. The light bars count everyone who reported the race, alone or with another race and of any ethnicity, so they overlap and add to more than 100%.

Show the numbers
GroupShare (single group)MOEAlone or in combination
White, not Hispanic76.0%±0.390.3%
Hispanic or Latino (any race)14.6%±0.1–
Two or more races, not Hispanic5.3%±0.3–
Asian, not Hispanic1.6%±0.23.2%
American Indian and Alaska Native, not Hispanic0.9%±0.13.9%
Black, not Hispanic0.8%±0.11.8%
Some other race, not Hispanic0.6%±0.2–
Native Hawaiian and Pacific Islander, not Hispanic0.1%0.6%

Idaho's Hispanic population is mostly of Mexican origin. Over 2020–2024, people of Mexican origin made up 11.0% of all residents, the 9th highest share in the nation. South American (0.6%), Central American (0.5%) and Puerto Rican (0.3%19) origins were each far smaller.

The Black population is one of the smallest in the country. Counting everyone who reported Black or African American race, alone or with another race, the share was 1.8% in 2025, the 3rd lowest; only Montana (1.2%) and Wyoming (1.6%18) were lower. Non-Hispanic Asian residents were 1.6%2; the largest Asian groups over 2020–2024 were Filipino (4,359), Chinese (4,149) and Asian Indian (3,51720) residents.

American Indian and Alaska Native people, alone or in combination with another race, were 3.9% of residents in 2025, 0.8 percentage points above the US figure (3.2%)21. At the 2020 Census the largest specific tribe among people reporting a single race was the Shoshone-Bannock Tribes of the Fort Hall Reservation, followed by the Nez Perce Tribe22.

Largest American Indian and Alaska Native groups in Idaho, 2020 Census
Group or tribeCategoryAlone or in any combinationAlone
CherokeeAmerican Indian9,538–
Shoshone-Bannock Tribes of the Fort Hall ReservationAmerican Indian4,662–
AztecLatin American Indian2,931–
Nez Perce TribeAmerican Indian2,792–
Navajo NationAmerican Indian2,407–
Blackfeet Tribe of the Blackfeet Indian Reservation of MontanaAmerican Indian1,903–
ChoctawAmerican Indian1,530–
SiouxAmerican Indian1,476–
Coeur D'AleneAmerican Indian1,125–
ChippewaAmerican Indian1,074–

Source: Census Bureau, 2020 Census Detailed Demographic and Housing Characteristics File A, table T01001. April 1, 2020. Census write-in categories with differential privacy; groups below the publication threshold are not shown. A person can report several groups, so the counts overlap and do not add up.

Basque, English and Scandinavian roots

No state has a larger Basque share of its population than Idaho. Over 2020–2024, 0.43% of Idahoans reported Basque ancestry, ahead of Nevada (0.13%) and Wyoming (0.10%). By number, only California (17,756) has more people of Basque origin than Idaho (8,31123). The group is small, and the single-year 2025 estimate (4,300, ±1,521) has medium reliability (CV 22%)24, so the five-year figures are the better guide.

The most common ancestries are much larger. English ancestry was reported by 17.8%24 of residents in 2025; on the five-year data that share is the 3rd highest in the country, after Utah and Maine. Scottish (6th highest share), Norwegian (11th highest) and Swedish (9th highest23) ancestries are also more common than in most states. People can report up to two ancestries, so the groups overlap.

Ancestry (people reporting each ancestry; people can report two): Idaho
English360,918 ±12,67117.8%2025high
German299,447 ±12,75814.8%2025high
Irish191,506 ±9,0729.4%2025high
American129,342 ±9,2346.4%2025high
Scottish70,483 ±5,4203.5%2025high
Italian61,100 ±6,2323.0%2025high
European56,534 ±6,0042.8%2025high
Norwegian46,340 ±4,2562.3%2025high
Swedish42,659 ±4,5102.1%2025high
French (except Basque)34,730 ±3,7831.7%2025high
Danish28,415 ±3,4331.4%2025high
Dutch27,213 ±3,5551.3%2025high

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B04006. Share of the total population. Each row uses the ACS 2025 1-year estimate where it is published with a coefficient of variation of 30% or less, otherwise the 2020–2024 5-year estimate. ± is the 90% margin of error; low reliability means a CV above 30%.

Room to spread out

Idaho has 82,645 square miles of land, the 11th largest25 area, and 24.6 people per square mile, making it the 7th least densely populated26 state. At the 2020 Census, 69.2% of residents lived in urban areas and 30.8% in rural ones, 10.8 percentage points above the US figure (20.0%). The rural share is higher than Nevada, Oregon, Utah and Washington; lower than Montana and Wyoming27.

Married couples, children and large households

Idaho stands out most in how people live together. In 2025, married couples headed 55.8% of households (±0.9 percentage points), the 2nd highest share after Utah and 9.2 percentage points above the US figure (46.6%). Only 24.8% of households were a person living alone, the 2nd lowest28 share, and the average household had 2.59 people, tied for 7th largest29 in the country.

Among people aged 15 and older, 27.7% had never married, the 2nd lowest share after Wyoming (26.4%), and 56.1%30 were married. Families headed by a woman with no spouse present made up 8.5% of households, 3.6 percentage points below the US figure (12.1%)28.

Idaho and its neighbors
StateMarried-couple households, share of householdsPeople living alone, share of householdsNever married, share of people 15 and olderAverage household sizeBirths per womanUnder 18
Idaho55.8% ±0.924.8% ±0.927.7% ±0.52.59 ±0.021.8223.3%
Montana48.2% ±1.130.4% ±1.130.1% ±0.82.32 ±0.021.5920.2%
Nevada43.6% ±0.928.7% ±0.935.7% ±0.62.61 ±0.021.4820.7%
Oregon45.3% ±0.830.0% ±0.734.2% ±0.52.39 ±0.011.3619.0%
Utah57.0% ±0.821.1% ±0.733.3% ±0.52.88 ±0.021.8026.1%
Washington48.0% ±0.628.1% ±0.533.4% ±0.32.47 ±0.011.4820.4%
Wyoming50.7% ±1.728.3% ±2.026.4% ±1.12.24 ±0.031.7021.6%
United States46.6% ±0.129.2% ±0.134.8% ±0.12.49 ±0.011.6021.1%

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B11001; Census Bureau, American Community Survey 1-year estimates, 2025, table B12001; Census Bureau, American Community Survey 1-year estimates, 2025, table B25010; CDC National Center for Health Statistics, Births; Census Bureau, Population Estimates Program, Vintage 2025. ± is the 90% margin of error.

Women in Idaho have more children than in most states. The total fertility rate, the number of births a woman would have at current rates, was 1.82 in 2024, the 3rd highest after South Dakota and Nebraska, and 14% above the US figure (1.60). The difference is concentrated among women in their late twenties: their birth rate was 121.6 per 1,000 women aged 25 to 29, 36% above the US figure (89.5 per 1,000 women aged 25 to 29), while for women aged 30 to 34 it was 5% above the US figure (93.7 per 1,000 women aged 30 to 34)31.

Age: many children, an older population growing fast

Children under 18 make up 23.3% of Idahoans, a share tied for 5th highest, and the median age of 37.9 years (±0.3 years) is 1.6 years below the US figure (39.5 years)3. Yet the share of residents aged 65 and older, 18.7%, is close to the national figure. Between 2020 and 2025 the number of residents aged 65 and older rose by 65,714 (21.0%), to 379,157, while the number of children rose by only 9,192 (2.0%), to 472,102. As a result the child share is down from 25.0% in 2020, and the 65-and-older share is up from 16.9% in 202032.

Age and sex structure of Idaho, July 1, 2025
85+
80–84
75–79
70–74
65–69
60–64
55–59
50–54
45–49
40–44
35–39
30–34
25–29
20–24
15–19
10–14
5–9
0–4

Source: Census Bureau, Population Estimates Program, Vintage 2025. Share of the total population in each age group. Vertical ticks: the United States.

Show the numbers
AgeMen (%)Women (%)US men (%)US women (%)
0-42.942.812.762.65
5-93.203.062.962.83
10-143.513.383.082.95
15-193.673.563.313.16
20-243.783.413.433.28
25-293.453.203.463.37
30-343.273.103.413.38
35-393.253.143.383.40
40-443.223.173.213.27
45-493.002.932.933.03
50-542.682.652.832.96
55-592.612.662.863.02
60-642.752.932.963.21
65-692.762.972.753.08
70-742.392.602.262.64
75-791.822.001.712.08
80-841.061.251.001.32
85+0.751.090.781.28

With many children and an average share of older people, Idaho has fewer working-age adults per dependent than most states. Its total dependency ratio, the number of children and older residents for every 100 working-age residents, is 72.2, the 9th highest32 in the country. Men slightly outnumber women: 101.2 males per 100 females in 2025 (±0.7), 5% above the US figure (96.4)33.

Household income at the US level, income per person below it

The median household income was $84,234 in 2025 (±$1,941), not statistically different from the US figure ($84,780)4. Income per person tells a different story. The Bureau of Economic Analysis puts personal income per resident at $64,200 in 2025, $12,828 (17%) below the US figure ($77,028) and lower than every bordering state (Montana, Nevada, Oregon, Utah, Washington and Wyoming)34. The same survey that measures household income puts income per person at $41,816, $5,355 (11%) below the US figure ($47,171)35. Household and per-person measures can diverge where households are larger than average, as they are in Idaho.

Household income in Idaho compared with United States, 2025
Under $25,00012.3% 14.0%
$25,000–$49,99915.8% 15.4%
$50,000–$99,99930.3% 27.8%
$100,000–$199,99930.3% 28.0%
$200,000 or more11.2% 14.8%

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B19001. Share of households in each band of income in the past 12 months, in 2025 dollars.

Show the numbers
Household incomeIdahoMOEUnited States
Under $25,00012.3%±0.714.0%
$25,000–$49,99915.8%±0.815.4%
$50,000–$99,99930.3%±0.927.8%
$100,000–$199,99930.3%±1.028.0%
$200,000 or more11.2%±0.614.8%

Income is spread more evenly than in most states. The Gini index, where 0 means equal incomes and 1 means one household has everything, was 0.443 (±0.008), 8% below the US figure (0.482)37. Households with $200,000 or more made up 11.2%, 3.6 percentage points below the US figure (14.8%)36, but both middle-income bands, from $50,000 up to $200,000, held larger shares than nationally.

The official poverty rate was 9.7% (±0.7 percentage points), 2.1 percentage points below the US figure (11.8%) and not statistically different from 10.5% in 2024. Child poverty was 11.0%, 3.8 percentage points below the US figure (14.8%)5. Public programs reach fewer people than in most states: 6.6% of residents received SNAP food benefits in an average month of fiscal 2025, the 5th lowest38 share, and 15.1% were enrolled in Medicaid or CHIP in June 2026, the 8th lowest39.

Prices overall are a little below the national level: the BEA price index for Idaho was 95.5 in 2024 (US = 100), 5% below the US figure (100.0). Utilities are the exception. Their price level of 70.4 was the least expensive in the nation, less expensive than every bordering state (Montana, Nevada, Oregon, Utah, Washington and Wyoming), slightly below second-placed Louisiana (71.5). Adjusted for prices, personal income per resident was $52,816 in 2024, still $6,379 (11%) below the US figure ($59,195)40.

Homes: newer and more expensive than average

Home values, unlike incomes, are well above the national level. The median value of an owner-occupied home was $457,800 in 2025 (±$6,135), $86,700 (23%) above the US figure ($371,100) and the 14th most expensive in the nation. In 2015, adjusted to 2025 dollars, the Idaho median was $239,470, below the national $264,192. The largest increase came between 2019 ($321,368) and 2022 ($475,78317); no 1-year estimate was published for 2020. The 2025 median was not statistically different from $458,146 in 2024 (in 2025 dollars)41.

Median home value (owner-occupied) in 2025 dollars, 2005–2025
Median home value (owner-occupied) in 2025 dollars, 2005–2025. Idaho: $222,376 in 2005 to $457,800 in 2025; Utah: $275,621 in 2005 to $543,400 in 2025; Washington: $375,353 in 2005 to $605,600 in 2025; United States: $276,116 in 2005 to $371,100 in 2025$0$200,000$400,000$600,00020052010201520212025

Source: Census Bureau, American Community Survey 1-year estimates, 2005-2019 and 2021-2025. ACS 1-year estimates; no standard 1-year release for 2020. Adjusted to 2025 dollars with the CPI-U annual average. Shaded band: 90% margin of error.

Show the numbers
YearIdahoUtahWashingtonUnited States
2005$222,376 ±$3,266$275,621 ±$2,435$375,353 ±$2,268$276,116 ±$531
2006$261,738 ±$3,697$301,023 ±$2,970$427,341 ±$4,332$295,753 ±$781
2007$276,539 ±$3,928$339,579 ±$3,099$467,057 ±$3,823$301,692 ±$666
2008$274,687 ±$3,611$352,891 ±$2,506$460,703 ±$3,580$295,472 ±$677
2009$257,660 ±$3,132$337,194 ±$2,989$430,984 ±$2,433$277,919 ±$494
2010$243,758 ±$3,412$320,679 ±$2,674$401,292 ±$2,504$265,609 ±$431
2011$227,282 ±$2,820$296,984 ±$3,600$366,828 ±$3,422$248,464 ±$361
2012$216,644 ±$3,393$280,025 ±$3,361$340,741 ±$2,103$241,043 ±$360
2013$219,736 ±$2,731$292,152 ±$2,760$346,602 ±$3,250$240,327 ±$310
2014$224,795 ±$3,454$303,535 ±$2,614$362,012 ±$2,743$246,418 ±$458
2015$239,470 ±$3,494$318,660 ±$2,661$385,761 ±$2,310$264,192 ±$394
2016$254,059 ±$4,101$335,750 ±$3,650$411,002 ±$3,447$274,985 ±$626
2017$272,007 ±$4,424$361,319 ±$3,479$445,246 ±$3,235$285,798 ±$574
2018$298,856 ±$4,222$388,859 ±$3,955$478,350 ±$2,600$294,497 ±$469
2019$321,368 ±$5,048$415,939 ±$4,025$488,096 ±$2,922$302,856 ±$568
2021$438,770 ±$5,759$501,027 ±$4,843$577,067 ±$3,459$334,335 ±$537
2022$475,783 ±$5,233$549,488 ±$4,934$626,494 ±$5,067$353,015 ±$684
2023$452,852 ±$5,753$546,993 ±$6,113$608,592 ±$4,102$359,450 ±$603
2024$458,146 ±$5,440$559,546 ±$6,351$618,045 ±$4,000$370,088 ±$634
2025$457,800 ±$6,135$543,400 ±$4,242$605,600 ±$4,205$371,100 ±$646

Rents are closer to the national level. The median gross rent was $1,462, $95 (6%) below the US figure ($1,557)42. Homeownership is common at 71.1%, the 11th highest43 rate, and the housing stock is young: 23.5% of homes were built in 2010 or later, against 14.9%44 nationally, and 73.1%45 are single-family detached houses. Among owners with a mortgage, the share whose housing costs take 30 percent or more of income was 28.2%, 2.5 percentage points below the US figure (30.7%)46.

Schooling: associate degrees and a low graduation rate

Among adults aged 25 and older, 33.2% held a bachelor's degree or higher in 2025 (±0.9 percentage points), 4.2 percentage points below the US figure (37.4%); allowing for the margins of error, Idaho ranks between 32nd and 41st. The share with an associate degree as their highest qualification, 10.5%, is 1.6 percentage points above the US figure (8.9%), and the share with at least a high school diploma, 92.6%, is 2.0 percentage points above the US figure (90.6%)47.

Bachelor's degree or higher: Idaho, its neighbors and the US
Washington41.4% ±0.5
Utah39.1% ±0.7
United States37.4% ±0.1
Oregon36.6% ±0.6
Montana36.2% ±1.2
Wyoming33.7% ±1.6
Idaho33.2% ±0.9
Nevada29.0% ±0.8

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B15003. Whiskers show the 90% margin of error. Period: 2025.

Show the numbers
StateBachelor's degree or higherMOE
Washington41.4%±0.5
Utah39.1%±0.7
United States37.4%±0.1
Oregon36.6%±0.6
Montana36.2%±1.2
Wyoming33.7%±1.6
Idaho33.2%±0.9
Nevada29.0%±0.8

Public high schools report a different picture. The adjusted cohort graduation rate, the share of students who finish high school within four years of starting ninth grade, was 80% in the 2021–22 school year, the 4th lowest among the states and DC that published a rate (New Mexico and Oklahoma did not), and lower than every bordering state (Montana, Nevada, Oregon, Utah, Washington and Wyoming)48. The two measures cover different people: the attainment shares above describe all adults living in Idaho, including those who finished school in another state.

Immigrants and languages

122,134 Idaho residents, 6.0% of the population, were born outside the United States in 2025, 8.7 percentage points below the US figure (14.7%). More than half of them (55.2%15) were born in Latin America. At home, 10.9% of residents aged five and older speak a language other than English, most of them Spanish (7.9%); 3.0% speak English less than "very well", down from 3.9% in 202449.

Health, work and veterans

Life expectancy at birth was 78.4 years in 2022, 0.9 years above the US figure (77.5 years), with men living longer than average: 76.4 years, the 11th longest50 of any state. The share of people without health insurance, 9.5%, is 1.1 percentage points above the US figure (8.4%), and among children it was 8.1%51.

Unemployment averaged 3.7% in 2025, 0.6 percentage points below the US figure (4.3%), and was 3.6%52 in September 2026. Veterans make up 7.4% of civilian adults, 1.5 percentage points above the US figure (5.9%): 115,29753 people in 2025.

Questions about Idaho's population

What is the population of Idaho?

The Census Bureau estimates that 2,029,733 people lived in Idaho on July 1, 2025, the 15th smallest1 state. The 2020 Census counted 1,839,1066 on April 1, 2020.

Is Idaho the fastest-growing state?

Since the 2020 Census, yes: its population rose by 10.36% to July 2025, the highest in the nation. In the single year to July 2025 it grew by 1.44%, the 2nd highest rate, just behind South Carolina (1.46%1).

What percent of Idaho is Mormon or LDS?

The Church of Jesus Christ of Latter-day Saints counted 462,069 members in Idaho in 2020, 25.1% of residents, the 2nd highest16 share after Utah. The figure comes from the church's own count in the U.S. Religion Census; the census itself does not ask about religion.

What percent of Idaho is white?

In 2025, 76.0% of Idahoans were non-Hispanic white, according to the American Community Survey, down from 77.8% in 20242. Counting white people of any ethnicity, alone or with another race, the share was 90.3%54.

More on Idaho

Neighboring states: Montana, Nevada, Oregon, Utah, Washington and Wyoming. Put Idaho side by side with any other state on every measure in the comparison tool, or see where it places in the state rankings.

Idaho in every state ranking

How Idaho ranks among the 50 states and DC
RankingValueRank
States by population2,029,73315th smallest
Cost of living by state95.523rd least expensive
Poverty rate by state9.7%14th lowest; could be 4th to 22nd lowest
Median household income by state$84,23422nd highest; could be 19th to 27th highest
Most and least educated states33.2%16th lowest; could be 11th to 20th lowest
States by land area82,645 square miles11th largest
GDP by state$137.4 billion13th smallest
Life expectancy by state78.4 yearstied for 12th longest
Unemployment rate by state3.7%tied for 18th lowest
Population growth by state1.44%2nd highest
Population density by state24.6 people per square mile7th least densely populated
Black population by state1.2%tied for 2nd lowest
Hispanic and Latino population by state14.8%16th highest
Median age by state37.9 yearstied for 7th youngest; could be 5th to 9th youngest
Median home value by state$457,80014th most expensive; could be 13th to 14th most expensive
Birth and fertility rates by state11.6 per 1,000 residentstied for 8th highest
Domestic migration by state19,9159th highest
Foreign-born population by state6.0%tied for 15th lowest; could be 11th to 17th lowest
GDP per capita by state$67,6956th lowest
White population by state77.8%11th highest
Asian population by state1.9%tied for 7th lowest
American Indian and Alaska Native population by state3.9%14th highest; could be 12th to 15th highest
Racial and ethnic diversity by state39.811th least diverse
Population 65 and older by state18.7%tied for 18th lowest
Median gross rent by state$1,46223rd most expensive; could be 21st to 23rd most expensive
Homeownership rate by state71.1%11th highest; could be 7th to 14th highest
Per capita personal income by state$64,2009th lowest
Income inequality by state0.443tied for 4th least unequal; could be 1st to 15th least unequal
Health insurance coverage by state9.5%15th highest; could be 12th to 16th highest
Adult obesity rate by state32.7%tied for 19th lowest
Teen birth rate by state9.9 per 1,000 females aged 15 to 1916th lowest
Infant mortality by state4.7 per 1,000 live births14th lowest
Languages spoken at home by state10.9%tied for 19th lowest; could be 18th to 22nd lowest
High school graduation rate by state80%4th lowest
Veterans by state7.4%tied for 14th highest; could be 5th to 21st highest
Children under 18 by state23.3%tied for 5th highest
Rural population by state30.8%20th highest
SNAP and Medicaid enrollment by state6.6%5th lowest
Homelessness by state13.4 per 10,000 residents23rd highest
Religious adherence by state52.7%tied for 12th highest
Sex ratio by state100.48th highest
Marriage and divorce rates by state7.1 per 1,000 residents11th highest
Millionaire tax returns by state3.7 per 1,000 tax returns26th highest
Catholic adherents by state11.1%16th lowest
Latter-day Saints by state25.1%2nd highest

Source: Census Bureau, Population Estimates Program, Vintage 2025; BEA, SARPP Regional Price Parities by state; Census Bureau, American Community Survey 1-year estimates, 2025, table B17001; Census Bureau, American Community Survey 1-year estimates, 2025, table B19013; Census Bureau, American Community Survey 1-year estimates, 2025, table B15003; Census Bureau, 2024 Gazetteer Files; BEA, SAGDP1 State annual GDP summary; CDC National Center for Health Statistics, U.S. State Life Tables, 2022; Bureau of Labor Statistics, Local Area Unemployment Statistics; States Demographics, Computed; Census Bureau, Population Estimates Program, Vintage 2025; Census Bureau, American Community Survey 1-year estimates, 2025, table B01002; Census Bureau, American Community Survey 1-year estimates, 2025, table B25077; CDC National Center for Health Statistics, Births; Census Bureau, American Community Survey 1-year estimates, 2025, table B05002; Census Bureau, American Community Survey 1-year estimates, 2025, table B02010; States Demographics, Computed, table B03002; Census Bureau, American Community Survey 1-year estimates, 2025, table B25064; Census Bureau, American Community Survey 1-year estimates, 2025, table B25003; BEA, SAINC1 State annual personal income summary; Census Bureau, American Community Survey 1-year estimates, 2025, table B19083; Census Bureau, American Community Survey 1-year estimates, 2025, table B27010; CDC (BRFSS), BRFSS Prevalence Data; CDC National Center for Health Statistics, Stats of the States; Census Bureau, American Community Survey 1-year estimates, 2025, table C16001; Department of Education, NCES, Digest of Education Statistics 2023, Table 219.46; Census Bureau, American Community Survey 1-year estimates, 2025, table B21001; Census Bureau, 2020 Census urban and rural population by state; USDA Food and Nutrition Service (FNS), SNAP Monthly State Participation and Benefit Summary, Fiscal Year 2025; HUD Office of Policy Development and Research, 2025 AHAR; Association of Religion Data Archives (ARDA), U.S. Religion Census; CDC National Center for Health Statistics, Marriage rates by State; IRS Statistics of Income (SOI), SOI Tax Stats - Historic Table 2. For survey measures, the second rank is the range consistent with the 90% margins of error. Each ranking page gives every state, the period and the margins of error.

Sources

  1. Census Bureau, Population Estimates Program, Vintage 2025; released January 27, 2026. www2.census.gov
  2. Census Bureau, American Community Survey 1-year estimates, 2025, table B03002; 2025; released October 29, 2026. data.census.gov
  3. Census Bureau, American Community Survey 1-year estimates, 2025, table B01002; 2025; released October 29, 2026. data.census.gov
  4. Census Bureau, American Community Survey 1-year estimates, 2025, table B19013; 2025; released October 29, 2026. data.census.gov
  5. Census Bureau, American Community Survey 1-year estimates, 2025, table B17001; 2025; released October 29, 2026. data.census.gov
  6. Census Bureau, 2020 Census apportionment results and historical resident population 1910-2020; Decennial censuses 1910-2020; released April 26, 2021. www2.census.gov
  7. Census Bureau, American Community Survey 1-year estimates, 2025, table B01003; 2025; released October 29, 2026. data.census.gov
  8. Census Bureau, American Community Survey 5-year estimates, 2020-2024, table B01003; 2020-2024; released January 29, 2026. data.census.gov
  9. Census Bureau, Historical Census Statistics on Population Totals by Race, 1790 to 1990; table Tables 1 and 15-65; 1790-1990 censuses; released September 13, 2002. www2.census.gov
  10. Census Bureau, Intercensal Estimates of the Resident Population for States, 2000-2010; table ST-EST00INT-ALLDATA; 2000-2010 intercensal; released September 1, 2011. www2.census.gov
  11. Census Bureau, Intercensal Estimates of the Resident Population for States, 2010-2020; table NST-EST2020INT-POP; 2010-2020 intercensal; released November 1, 2024. www2.census.gov
  12. Census Bureau, 2020 Census Apportionment Results, Table 1; 2020 Census (April 1, 2020); released April 26, 2021. www2.census.gov
  13. Census Bureau, State-to-State Migration Flows, 2024; ACS 2024 1-year; released January 21, 2026. www2.census.gov
  14. IRS Statistics of Income (SOI), SOI Tax Stats - Migration Data 2022-2023; released March 20, 2026. www.irs.gov
  15. Census Bureau, American Community Survey 1-year estimates, 2025, table B05002; 2025; released October 29, 2026. data.census.gov
  16. Association of Religion Data Archives (ARDA), U.S. Religion Census; table RCMSST20; 2020; released March 31, 2023. www.thearda.com
  17. Census Bureau, American Community Survey 1-year estimates, 2005-2019 and 2021-2025; 2005-2025 (no standard 2020 1-year release); released October 29, 2026. api.census.gov
  18. Census Bureau, American Community Survey 1-year estimates, 2025, table B02009; 2025; released October 29, 2026. data.census.gov
  19. Census Bureau, American Community Survey 5-year estimates, 2020-2024, table B03001; 2020-2024; released January 29, 2026. data.census.gov
  20. Census Bureau, American Community Survey 5-year estimates, 2020-2024, table B02015; 2020-2024; released January 29, 2026. data.census.gov
  21. Census Bureau, American Community Survey 1-year estimates, 2025, table B02010; 2025; released October 29, 2026. data.census.gov
  22. Census Bureau, 2020 Census Detailed Demographic and Housing Characteristics File A, table T01001; 2020 Census (April 1, 2020); released September 21, 2023. data.census.gov
  23. Census Bureau, American Community Survey 5-year estimates, 2020-2024, table B04006; 2020-2024; released January 29, 2026. data.census.gov
  24. Census Bureau, American Community Survey 1-year estimates, 2025, table B04006; 2025; released October 29, 2026. data.census.gov
  25. Census Bureau, 2024 Gazetteer Files; table 2024_Gaz_state_national; 2024; released September 1, 2024. www2.census.gov
  26. States Demographics, Computed; 2025; released November 12, 2026.
  27. Census Bureau, 2020 Census urban and rural population by state; 2020 Census and 2010 Census; released December 29, 2022. www2.census.gov
  28. Census Bureau, American Community Survey 1-year estimates, 2025, table B11001; 2025; released October 29, 2026. data.census.gov
  29. Census Bureau, American Community Survey 1-year estimates, 2025, table B25010; 2025; released October 29, 2026. data.census.gov
  30. Census Bureau, American Community Survey 1-year estimates, 2025, table B12001; 2025; released October 29, 2026. data.census.gov
  31. CDC National Center for Health Statistics, Births; 2024 final natality; released June 9, 2026. www.cdc.gov
  32. Census Bureau, Population Estimates Program, Vintage 2025; Vintage 2025 (July 1 2020-2025); released June 25, 2026. www2.census.gov
  33. Census Bureau, American Community Survey 1-year estimates, 2025, table S0101; 2025; released October 29, 2026. data.census.gov
  34. BEA, SAINC1 State annual personal income summary; table SAINC1__ALL_AREAS_1929_2025.csv lines 1-3; 2025 (annual); released September 30, 2026. apps.bea.gov
  35. Census Bureau, American Community Survey 1-year estimates, 2025, table B19301; 2025; released October 29, 2026. data.census.gov
  36. Census Bureau, American Community Survey 1-year estimates, 2025, table B19001; 2025; released October 29, 2026. data.census.gov
  37. Census Bureau, American Community Survey 1-year estimates, 2025, table B19083; 2025; released October 29, 2026. data.census.gov
  38. USDA Food and Nutrition Service (FNS), SNAP Monthly State Participation and Benefit Summary, Fiscal Year 2025; FY2025 (Oct 2024-Sep 2025); released October 8, 2026. www.fns.usda.gov
  39. CMS (Centers for Medicare & Medicaid Services), State Medicaid and CHIP Applications, Eligibility Determinations, and Enrollment Data; released October 30, 2026. data.medicaid.gov
  40. BEA, SARPP Regional Price Parities by state; 2024; released February 19, 2026. apps.bea.gov
  41. Census Bureau, American Community Survey 1-year estimates, 2025, table B25077; 2025; released October 29, 2026. data.census.gov
  42. Census Bureau, American Community Survey 1-year estimates, 2025, table B25064; 2025; released October 29, 2026. data.census.gov
  43. Census Bureau, American Community Survey 1-year estimates, 2025, table B25003; 2025; released October 29, 2026. data.census.gov
  44. Census Bureau, American Community Survey 1-year estimates, 2025, table B25034; 2025; released October 29, 2026. data.census.gov
  45. Census Bureau, American Community Survey 1-year estimates, 2025, table B25024; 2025; released October 29, 2026. data.census.gov
  46. Census Bureau, American Community Survey 1-year estimates, 2025, table B25091; 2025; released October 29, 2026. data.census.gov
  47. Census Bureau, American Community Survey 1-year estimates, 2025, table B15003; 2025; released October 29, 2026. data.census.gov
  48. Department of Education, NCES, Digest of Education Statistics 2023, Table 219.46; school year 2021-22. nces.ed.gov
  49. Census Bureau, American Community Survey 1-year estimates, 2025, table C16001; 2025; released October 29, 2026. data.census.gov
  50. CDC National Center for Health Statistics, U.S. State Life Tables, 2022; 2022 final mortality; released December 4, 2025. www.cdc.gov
  51. Census Bureau, American Community Survey 1-year estimates, 2025, table B27010; 2025; released October 29, 2026. data.census.gov
  52. Bureau of Labor Statistics, Local Area Unemployment Statistics; 2025 annual averages; September 2026 monthly (preliminary). api.bls.gov
  53. Census Bureau, American Community Survey 1-year estimates, 2025, table B21001; 2025; released October 29, 2026. data.census.gov
  54. Census Bureau, American Community Survey 1-year estimates, 2025, table B02008; 2025; released October 29, 2026. data.census.gov
  55. BEA, SAGDP1 State annual GDP summary; table SAGDP1__ALL_AREAS_1997_2025.csv lines 1,3; 2025; released September 30, 2026. apps.bea.gov
  56. States Demographics, Computed, table B03002; 2025; released November 12, 2026.
  57. CDC (BRFSS), BRFSS Prevalence Data; 2024 survey year. data.cdc.gov
  58. CDC National Center for Health Statistics, Stats of the States. www.cdc.gov
  59. HUD Office of Policy Development and Research, 2025 AHAR; Point-in-Time count, one night in the last 10 days of January 2025. www.huduser.gov
  60. CDC National Center for Health Statistics, Marriage rates by State; 2024 provisional counts. www.cdc.gov
  61. IRS Statistics of Income (SOI), SOI Tax Stats - Historic Table 2; Tax Year 2023 (individual income tax returns); released August 21, 2026. www.irs.gov

Citation: Grammich, C. A., Dollhopf, E., Gautier, M., Houseal, R., Jones, D. E., Krindatch, A., ... Thumma, S. (2023, March 31). U.S. Religion Census - Religious Congregations and Membership Study, 2020 (State File). DOI 10.17605/OSF.IO/6PGRZ. The data were downloaded from the Association of Religion Data Archives, www.theARDA.com, and were collected by Clifford A. Grammich, Erica Dollhopf, Mary Gautier, Richard Houseal, Dale E. Jones, Alexei Krindatch, Richie Stanley and Scott Thumma for the Association of Statisticians of American Religious Bodies (ASARB).

Margins of error (±) are at the 90% confidence level. A difference is called significant only when it passes the Census Bureau's test at that level. How every figure is built: methodology. Found an error? Write to [email protected]; corrections are listed on the updates page.