Households and families in the states

Households are largest in Utah, with 2.88 people on average in 2025, and smallest in the District of Columbia, with 1.97; the national average is 2.49¹. The country counted 134.1 million² households, and in almost every state they have grown in number while getting smaller.

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

Average household size by state, 2025 (people per household)

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B25010; Census Bureau, 2024 Cartographic Boundary Files. Darker states are higher; DC is the dot. Period: 2025.

Show the numbers

State	Average household size
Utah	2.88
Hawaii	2.78
California	2.77
Texas	2.68
New Jersey	2.63
Nevada	2.61
Georgia	2.59
Idaho	2.59
Alaska	2.53
Maryland	2.53
Oklahoma	2.48
Virginia	2.48
Washington	2.47
Florida	2.46
New York	2.46
Arizona	2.45
Connecticut	2.45
Delaware	2.45
Alabama	2.44
Massachusetts	2.43
Illinois	2.42
Louisiana	2.42
Tennessee	2.42
Indiana	2.41
New Mexico	2.41
Kansas	2.40
North Carolina	2.40
Michigan	2.39
Mississippi	2.39
New Hampshire	2.39
Oregon	2.39
Kentucky	2.38
Minnesota	2.38
Nebraska	2.38
Rhode Island	2.38
Arkansas	2.37
Colorado	2.37
South Carolina	2.36
Missouri	2.34
Ohio	2.34
Pennsylvania	2.33
South Dakota	2.33
Montana	2.32
Iowa	2.31
West Virginia	2.29
Wisconsin	2.27
Wyoming	2.24
Maine	2.21
North Dakota	2.18
Vermont	2.17
District of Columbia	1.97

Average household size: Utah first, the District last

The average American household had 2.49 people in 2025 (±0.01), not statistically different from 2.50 in 2024¹. The figure is the number of people living in households divided by the number of households, from the Census Bureau's American Community Survey (ACS).

Utah stands apart: its average of 2.88 (±0.02) is the largest in the nation, 16% above the US figure (2.49), and larger than every bordering state (Arizona, Colorado, Idaho, Nevada and Wyoming). Hawaii (2.78), California (2.77), Texas (2.68) and New Jersey (2.63) come next. The District of Columbia is the only place below two people per household, at 1.97; it is smaller than every bordering state (Maryland and Virginia). Among the states, the smallest households are in Vermont (2.17), North Dakota (2.18), Maine (2.21) and Wyoming (2.24¹).

Only 10 states are significantly above the national average and 39, counting DC, are below it. That looks lopsided but is arithmetic: the large-household states include the two most populous, California and Texas⁴, and their households weigh heavily in the national average. The median state sits at 2.40¹.

Each region has its own extremes. In the Northeast households range from 2.63 in New Jersey to 2.17 in Vermont; in the Midwest, from 2.42 in Illinois to 2.18 in North Dakota¹. No Midwestern state reaches the national average.

Every state's households in one table

The table gives the number of households in each state and how they are made up. Sort any column; the shares are of all households, so a household counted as married-couple is not also counted as living alone.

Households by state, 2025: number, average size, family and married-couple households, people living alone, and women heading families with no spouse

Utah	1,208,124 ±6,720	2.88 ±0.02	71.8% ±0.8	57.0% ±0.8	21.1% ±0.7	9.8% ±0.5
Hawaii	500,883 ±5,945	2.78 ±0.03	67.5% ±1.2	49.1% ±1.3	25.5% ±1.2	13.0% ±0.8
California	13,898,622 ±27,332	2.77 ±0.01	67.2% ±0.2	47.1% ±0.2	25.1% ±0.3	13.6% ±0.2
Texas	11,607,274 ±26,154	2.68 ±0.01	67.5% ±0.3	48.8% ±0.3	26.6% ±0.3	13.2% ±0.2
New Jersey	3,565,008 ±10,954	2.63 ±0.01	68.0% ±0.5	50.1% ±0.5	26.6% ±0.5	12.7% ±0.4
Nevada	1,245,703 ±8,030	2.61 ±0.02	63.5% ±1.0	43.6% ±0.9	28.7% ±0.9	12.7% ±0.6
Georgia	4,269,857 ±14,138	2.59 ±0.01	66.0% ±0.4	46.5% ±0.5	28.3% ±0.5	14.9% ±0.4
Idaho	765,200 ±5,511	2.59 ±0.02	68.9% ±0.9	55.8% ±0.9	24.8% ±0.9	8.5% ±0.7
Alaska	278,920 ±3,561	2.53 ±0.03	64.3% ±1.4	47.8% ±1.6	28.3% ±1.6	10.7% ±1.1
Maryland	2,428,843 ±9,986	2.53 ±0.01	64.7% ±0.6	46.0% ±0.7	29.2% ±0.6	13.7% ±0.4
Oklahoma	1,616,177 ±6,690	2.48 ±0.01	64.2% ±0.6	46.5% ±0.5	29.9% ±0.6	12.3% ±0.4
Virginia	3,480,219 ±10,199	2.48 ±0.01	65.0% ±0.5	49.1% ±0.5	28.5% ±0.5	11.2% ±0.4
Washington	3,180,129 ±10,710	2.47 ±0.01	63.1% ±0.5	48.0% ±0.6	28.1% ±0.5	10.1% ±0.3
Florida	9,326,796 ±31,150	2.46 ±0.01	64.3% ±0.4	47.0% ±0.3	28.6% ±0.4	12.1% ±0.2
New York	7,867,612 ±17,339	2.46 ±0.01	60.6% ±0.4	41.7% ±0.4	31.9% ±0.4	13.6% ±0.3
Arizona	3,040,935 ±13,096	2.45 ±0.01	63.5% ±0.6	45.9% ±0.6	28.4% ±0.6	12.0% ±0.5
Connecticut	1,456,915 ±7,398	2.45 ±0.01	63.8% ±0.7	46.8% ±0.7	29.8% ±0.7	12.5% ±0.5
Delaware	422,123 ±4,587	2.45 ±0.03	66.4% ±1.2	48.5% ±1.5	27.5% ±1.5	12.0% ±1.1
Alabama	2,070,835 ±13,313	2.44 ±0.02	64.1% ±0.6	45.7% ±0.6	31.2% ±0.7	14.0% ±0.6
Massachusetts	2,827,794 ±12,938	2.43 ±0.01	61.3% ±0.5	45.1% ±0.6	30.4% ±0.5	11.9% ±0.4
Illinois	5,134,283 ±13,761	2.42 ±0.01	61.3% ±0.4	44.5% ±0.5	31.9% ±0.4	11.8% ±0.3
Louisiana	1,855,847 ±11,110	2.42 ±0.01	63.1% ±0.8	42.2% ±0.7	31.1% ±0.7	15.7% ±0.6
Tennessee	2,954,096 ±11,880	2.42 ±0.01	64.4% ±0.6	47.6% ±0.5	29.0% ±0.6	11.7% ±0.4
Indiana	2,816,686 ±9,835	2.41 ±0.01	63.2% ±0.6	46.1% ±0.6	30.3% ±0.6	11.5% ±0.4
New Mexico	863,010 ±7,332	2.41 ±0.02	61.9% ±1.1	41.6% ±1.1	31.5% ±0.9	13.5% ±0.8
Kansas	1,205,638 ±6,563	2.40 ±0.01	63.5% ±0.7	49.3% ±0.8	30.0% ±0.7	9.7% ±0.5
North Carolina	4,539,531 ±17,005	2.40 ±0.01	64.4% ±0.4	47.6% ±0.5	29.2% ±0.4	12.1% ±0.4
Michigan	4,150,990 ±12,914	2.39 ±0.01	62.5% ±0.3	46.0% ±0.4	31.1% ±0.4	11.5% ±0.3
Mississippi	1,197,317 ±8,286	2.39 ±0.02	65.2% ±1.0	43.4% ±1.0	30.8% ±0.9	16.4% ±0.6
New Hampshire	574,089 ±5,217	2.39 ±0.02	64.6% ±1.1	50.8% ±1.2	28.3% ±1.1	9.3% ±0.7
Oregon	1,745,361 ±9,072	2.39 ±0.01	60.6% ±0.6	45.3% ±0.8	30.0% ±0.7	10.8% ±0.5
Kentucky	1,885,581 ±9,687	2.38 ±0.01	63.5% ±0.6	46.4% ±0.6	30.4% ±0.7	11.9% ±0.4
Minnesota	2,391,870 ±8,635	2.38 ±0.01	62.1% ±0.4	49.1% ±0.5	30.3% ±0.5	8.7% ±0.3
Nebraska	827,249 ±4,929	2.38 ±0.01	62.3% ±0.8	48.9% ±0.9	30.2% ±0.8	8.5% ±0.6
Rhode Island	450,467 ±4,304	2.38 ±0.02	60.6% ±1.2	42.1% ±1.4	32.1% ±1.5	13.3% ±1.1
Arkansas	1,277,805 ±8,667	2.37 ±0.02	65.9% ±0.9	47.9% ±1.0	28.4% ±0.9	13.0% ±0.7
Colorado	2,483,142 ±10,139	2.37 ±0.01	61.1% ±0.5	47.6% ±0.5	29.3% ±0.6	8.6% ±0.4
South Carolina	2,296,350 ±12,026	2.36 ±0.01	65.3% ±0.7	46.9% ±0.7	28.7% ±0.7	13.9% ±0.4
Missouri	2,604,619 ±11,993	2.34 ±0.01	61.8% ±0.6	46.3% ±0.6	31.1% ±0.6	10.9% ±0.3
Ohio	4,957,873 ±12,038	2.34 ±0.01	60.6% ±0.4	44.3% ±0.4	32.6% ±0.4	11.5% ±0.3
Pennsylvania	5,405,581 ±14,199	2.33 ±0.01	61.8% ±0.4	45.9% ±0.4	31.4% ±0.4	11.3% ±0.2
South Dakota	387,580 ±3,932	2.33 ±0.02	61.1% ±1.1	47.8% ±1.5	31.0% ±1.3	8.8% ±0.8
Montana	481,275 ±4,632	2.32 ±0.02	61.1% ±1.0	48.2% ±1.1	30.4% ±1.1	8.2% ±0.6
Iowa	1,355,504 ±6,652	2.31 ±0.01	60.9% ±0.7	47.5% ±0.7	32.4% ±0.7	8.9% ±0.5
West Virginia	747,801 ±6,569	2.29 ±0.02	62.2% ±1.0	45.7% ±0.9	31.6% ±0.9	11.2% ±0.7
Wisconsin	2,567,583 ±9,080	2.27 ±0.01	60.5% ±0.4	47.0% ±0.5	31.6% ±0.6	9.0% ±0.3
Wyoming	256,608 ±3,485	2.24 ±0.03	63.4% ±1.6	50.7% ±1.7	28.3% ±2.0	8.1% ±1.1
Maine	620,759 ±6,210	2.21 ±0.02	60.4% ±1.0	48.1% ±1.0	29.9% ±1.1	8.1% ±0.7
North Dakota	352,013 ±3,073	2.18 ±0.02	58.2% ±1.4	45.2% ±1.4	33.5% ±1.4	8.5% ±1.1
Vermont	285,750 ±2,748	2.17 ±0.02	59.4% ±1.4	46.4% ±1.4	31.3% ±1.5	8.2% ±1.0
District of Columbia	333,195 ±4,240	1.97 ±0.03	39.8% ±1.9	26.1% ±1.6	49.7% ±2.2	11.2% ±1.2
United States	134,063,422 ±130,863	2.49 ±0.01	63.9% ±0.1	46.6% ±0.1	29.2% ±0.1	12.1% ±0.1

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B11001; Census Bureau, American Community Survey 1-year estimates, 2025, table B25010. ± is the 90% margin of error.

California has 13.9 million households and Texas 11.6 million, followed by Florida (9,326,796) and New York (7,867,612). At the other end, Wyoming has 256,608 households, Alaska 278,920 and Vermont 285,750².

Divorce and marriage rates by state

Divorce and marriage rates come from a different source: counts of divorces and marriages reported by the states to the CDC's National Center for Health Statistics, divided by population. Nevada had the highest divorce rate in 2024, 3.8 per 1,000 residents, followed by Arkansas and Oklahoma (3.3 per 1,000 residents each) and Idaho and Wyoming (3.2 per 1,000 residents). The lowest rates were in Louisiana (0.8 per 1,000 residents), Illinois (1.3 per 1,000 residents) and Massachusetts (1.5 per 1,000 residents). The national rate was 2.3 per 1,000 residents⁵. No divorce rate is published for California, Hawaii, Indiana, Minnesota or New Mexico.

Nevada also leads on marriages, with 24.8 per 1,000 residents, 294% above the US figure (6.3 per 1,000 residents); Louisiana has the lowest marriage rate as well (3.7 per 1,000 residents⁵). These rates count events, not people. Among Nevada's residents aged 15 and older, the share currently married (46.4%) is 3.0 percentage points below the US figure (49.4%)⁶. The full ranking, with the reasons the two measures diverge, is on the marriage and divorce rates page. The CDC's marriage and divorce tables are the source.

More households, fewer people in each

The two national ACS series move in opposite directions. The number of households went from 111,090,617 in 2005 to 134,063,422 in 2025. Average household size was 2.60 in 2005 and 2.65 in 2015, and 2.49⁷ in 2025.

The state series show the same pattern almost everywhere. Compared with 2005, average household size is significantly smaller in every state except Florida, Nevada and Oklahoma. Utah's average, 2.88, is down from 3.07 in 2005; California's, 2.77, is down from 2.92 in 2005; and Texas's, 2.68¹, is down from 2.79 in 2005. Florida is the clearest exception: its average in 2025, 2.46, is not statistically different from 2.47 in 2005⁷.

Average household size: Florida, Utah, Texas and the US, 2005–2025

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. Shaded band: 90% margin of error.

Show the numbers

Year	Florida	Utah	Texas	United States
2005	2.47 ±0.02	3.07 ±0.03	2.79 ±0.01	2.60 ±0.02
2006	2.49 ±0.01	3.08 ±0.02	2.83 ±0.02	2.61 ±0.02
2007	2.52 ±0.02	3.11 ±0.02	2.83 ±0.01	2.61 ±0.01
2008	2.54 ±0.02	3.15 ±0.02	2.82 ±0.01	2.62 ±0.03
2009	2.59 ±0.01	3.17 ±0.02	2.84 ±0.02	2.63 ±0.01
2010	2.62 ±0.02	3.10 ±0.02	2.82 ±0.01	2.63 ±0.01
2011	2.62 ±0.01	3.13 ±0.02	2.84 ±0.03	2.64 ±0.01
2012	2.62 ±0.02	3.14 ±0.03	2.84 ±0.01	2.64 ±0.01
2013	2.65 ±0.01	3.17 ±0.02	2.84 ±0.01	2.65 ±0.01
2014	2.66 ±0.02	3.16 ±0.03	2.84 ±0.01	2.65 ±0.01
2015	2.66 ±0.01	3.17 ±0.02	2.85 ±0.01	2.65 ±0.01
2016	2.66 ±0.02	3.19 ±0.03	2.86 ±0.01	2.65 ±0.01
2017	2.67 ±0.01	3.13 ±0.02	2.88 ±0.01	2.65 ±0.03
2018	2.67 ±0.01	3.12 ±0.02	2.87 ±0.02	2.63 ±0.03
2019	2.66 ±0.01	3.08 ±0.02	2.84 ±0.01	2.61 ±0.01
2021	2.49 ±0.01	2.99 ±0.01	2.68 ±0.01	2.54 ±0.01
2022	2.47 ±0.01	2.95 ±0.01	2.65 ±0.01	2.50 ±0.01
2023	2.47 ±0.01	2.88 ±0.01	2.66 ±0.01	2.49 ±0.01
2024	2.50 ±0.01	2.91 ±0.02	2.68 ±0.01	2.50 ±0.01
2025	2.46 ±0.01	2.88 ±0.02	2.68 ±0.01	2.49 ±0.01

Over the same period the number of households rose significantly in every state but West Virginia, whose 2025 count is not statistically different from 740,702 in 2005⁷. In 2025 alone, the count rose by 185,121 (2.0%) in Florida, 157,505 (1.4%) in Texas and 100,984 (0.7%)² in California. The homes these households live in, and whether they own or rent, are covered in the housing hub.

Living alone: one household in four, or one in two

29.2% of US households (±0.1 percentage points) were a single person living alone in 2025, up from 28.9% in 2024². Every such household lowers the average size, so the two measures tend to move together across states.

The District of Columbia is the extreme case: 49.7% of its households (±2.2 percentage points) are one person, 20.5 percentage points above the US figure (29.2%). Among states the highest shares are in North Dakota (33.5%), Ohio (32.6%) and Iowa (32.4%), but their margins of error overlap: North Dakota ranks between 2nd and 5th and Ohio between 2nd and 6th. Ohio's share is up from 31.9% in 2024 and Iowa's up from 30.7% in 2024².

Highest shares of households that are one person living alone, 2025

District of Columbia49.7% ±2.2

North Dakota33.5% ±1.4

Ohio32.6% ±0.4

Iowa32.4% ±0.7

Rhode Island32.1% ±1.5

Illinois31.9% ±0.4

New York31.9% ±0.4

West Virginia31.6% ±0.9

Wisconsin31.6% ±0.6

New Mexico31.5% ±0.9

Pennsylvania31.4% ±0.4

Vermont31.3% ±1.5

United States29.2% ±0.1

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B11001. Whiskers show the 90% margin of error; states whose whiskers overlap may not differ significantly. Period: 2025.

Show the numbers

State	People living alone, share of households	MOE
District of Columbia	49.7%	±2.2
North Dakota	33.5%	±1.4
Ohio	32.6%	±0.4
Iowa	32.4%	±0.7
Rhode Island	32.1%	±1.5
Illinois	31.9%	±0.4
New York	31.9%	±0.4
West Virginia	31.6%	±0.9
Wisconsin	31.6%	±0.6
New Mexico	31.5%	±0.9
Pennsylvania	31.4%	±0.4
Vermont	31.3%	±1.5
United States	29.2%	±0.1

Living alone is least common in Utah (21.1%), which is lower than every bordering state (Arizona, Colorado, Idaho, Nevada and Wyoming), then Idaho (24.8%) and California (25.1%). 27 states, counting DC, are significantly above the national share and 12² below it. Several states with many one-person households are also among the smallest-household states on the map above: North Dakota, Iowa, Wisconsin and Vermont, along with the District.

Married couples and family households

A family household is one where the householder lives with at least one relative by birth, marriage or adoption, following the Census Bureau's definition. Nationally 63.9% of households (±0.1 percentage points) are families, and 46.6% (±0.1 percentage points²) are married couples, with or without children.

Married-couple households as a share of all households, 2025: one dot per state, Utah and the US marked

District of Columbia 26.1%Utah 57.0%

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B11001. Each dot is a state. Period: 2025.

Show the numbers

State	Married-couple households, share of households
Utah	57.0%
Idaho	55.8%
New Hampshire	50.8%
Wyoming	50.7%
New Jersey	50.1%
Kansas	49.3%
Hawaii	49.1%
Minnesota	49.1%
Virginia	49.1%
Nebraska	48.9%
Texas	48.8%
Delaware	48.5%
Montana	48.2%
Maine	48.1%
Washington	48.0%
Arkansas	47.9%
Alaska	47.8%
South Dakota	47.8%
Colorado	47.6%
North Carolina	47.6%
Tennessee	47.6%
Iowa	47.5%
California	47.1%
Florida	47.0%
Wisconsin	47.0%
South Carolina	46.9%
Connecticut	46.8%
Georgia	46.5%
Oklahoma	46.5%
Kentucky	46.4%
Vermont	46.4%
Missouri	46.3%
Indiana	46.1%
Maryland	46.0%
Michigan	46.0%
Arizona	45.9%
Pennsylvania	45.9%
Alabama	45.7%
West Virginia	45.7%
Oregon	45.3%
North Dakota	45.2%
Massachusetts	45.1%
Illinois	44.5%
Ohio	44.3%
Nevada	43.6%
Mississippi	43.4%
Louisiana	42.2%
Rhode Island	42.1%
New York	41.7%
New Mexico	41.6%
District of Columbia	26.1%

Utah has the highest married-couple share, 57.0% (±0.8 percentage points), and Idaho is close behind at 55.8%; the margins of error leave Idaho between 1st and 2nd. Utah also has the highest share of family households overall (71.8%). After those two come New Hampshire (50.8%), Wyoming (50.7%) and New Jersey (50.1%²).

The lowest shares are in the District of Columbia (26.1%, ±1.6 percentage points), then New Mexico (41.6%) and New York (41.7%). Away from the two ends the states are close together: 22 are significantly above the national share, 15², counting DC, below it, and the rest cannot be told apart from it.

Counting people instead of households gives a different picture. Of residents aged 15 and older, 49.4% are currently married and 34.8% have never married. The never-married share is highest in the District of Columbia (55.0%, ±1.4 percentage points), followed by New York (39.8%) and California (39.0%), and lowest in Wyoming (26.4%) and Idaho (27.7%⁶).

Families headed by a woman with no spouse

The ACS separates family households headed by a woman with no spouse present. These include single mothers raising minor children, but also a woman living with an adult child, a parent or a sibling, so the measure is wider than "single mothers". Nationally such families make up 12.1% of households (±0.1 percentage points), not statistically different from 12.1% in 2024².

The highest shares are in the Deep South. Mississippi leads with 16.4% (±0.6 percentage points), higher than Alabama, Arkansas and Tennessee; not statistically different from Louisiana; Mississippi and Louisiana (15.7%) both rank between 1st and 2nd. Georgia (14.9%), Alabama (14.0%) and South Carolina (13.9%) follow. South Carolina's share is up from 13.0% in 2024².

Family households headed by a woman with no spouse present, share of households, selected states, 2025

Mississippi16.4% ±0.6

Louisiana15.7% ±0.6

Georgia14.9% ±0.4

Alabama14.0% ±0.6

South Carolina13.9% ±0.4

California13.6% ±0.2

New York13.6% ±0.3

United States12.1% ±0.1

Minnesota8.7% ±0.3

Vermont8.2% ±1.0

Maine8.1% ±0.7

Wyoming8.1% ±1.1

Source: Census Bureau, American Community Survey 1-year estimates, 2025, table B11001. Whiskers show the 90% margin of error. Period: 2025.

Show the numbers

State	Female householder families with no spouse, share of households	MOE
Mississippi	16.4%	±0.6
Louisiana	15.7%	±0.6
Georgia	14.9%	±0.4
Alabama	14.0%	±0.6
South Carolina	13.9%	±0.4
California	13.6%	±0.2
New York	13.6%	±0.3
United States	12.1%	±0.1
Minnesota	8.7%	±0.3
Vermont	8.2%	±1.0
Maine	8.1%	±0.7
Wyoming	8.1%	±1.1

The lowest shares are in Wyoming and Maine (8.1% each) and Vermont (8.2%). Small samples make these less certain: Wyoming's rank could be anywhere between 39th and 51st. 14 states are significantly above the national share and 25 below it. By region, the highest Midwestern share is 11.8% in Illinois, and the highest in the Northeast is 13.6% in New York²; neither region has a state in the top five.

The 2020 Census and the ACS give different household sizes

The 2020 Census counted 2.55⁸ people per household nationally on April 1, 2020; the ACS estimate for 2025 is 2.49¹, and the ACS estimate for 2019 was 2.61⁷. The census figure is a full count; the ACS is a sample survey with its own methods and margins of error. Because the methods differ, the gap between a census figure and an ACS figure cannot be read as change over time. To measure change, compare ACS years with each other, as in the chart above.

In the census, Utah had 3.04 people per household on April 1, 2020, 19% above the US figure (2.55), and the District of Columbia 2.08, 18% below the US figure (2.55). Vermont had 2.27 and Maine 2.28, each 11% below the US figure (2.55)⁸.

How to read these figures

Households are occupied homes. A household is everyone who lives in one housing unit, related or not, as the Census Bureau defines it. People in dormitories, nursing homes, prisons and other group quarters are not in any household, so they are left out of household size.
Three universes. Household shares (married couples, living alone) are shares of households; marital status is a share of people 15 and older; marriage and divorce rates are events per 1,000 residents of all ages. Do not compare a figure from one with a figure from another.
Survey margins. All household and marital-status figures here are ACS 2025 1-year estimates with 90% margins of error. "Higher", "lower", "up" and "down" are used only where the difference passes the Census Bureau's significance test.
Event rates are counts. NCHS marriage and divorce rates have no margin of error but depend on what each state reports; no divorce rate is published for five states.
No 2020 ACS point. The Census Bureau did not release standard ACS 1-year estimates for 2020, so the trend lines skip that year.

Questions about households and families by state

Which state has the largest average household size?

Utah, with 2.88 people per household (±0.02) in 2025, 16% above the US figure (2.49). Hawaii (2.78) and California (2.77) follow; the margins of error leave those two between 2nd and 3rd¹.

Which state has the smallest households?

The District of Columbia, at 1.97 people per household (±0.03). Among the 50 states, Vermont (2.17) and North Dakota (2.18¹) have the smallest.

Which state has the highest divorce rate?

Nevada, with 3.8 per 1,000 residents in 2024 according to CDC/NCHS. Arkansas and Oklahoma follow at 3.3 per 1,000 residents; Louisiana has the lowest rate (0.8 per 1,000 residents⁵). No rate is published for California, Hawaii, Indiana, Minnesota or New Mexico.

How many households are there in the United States?

134,063,422 (±130,863) in 2025, by the American Community Survey, up from 132,737,146 in 2024. That is a gain of 1,326,276 (1.0%)² in one year.

Where do the most people live alone?

In the District of Columbia, where 49.7% of households (±2.2 percentage points) are one person living alone, the highest in the nation. Among the states, North Dakota (33.5%) has the highest point estimate, but given the margins of error it ranks between 2nd and 5th².

Rankings on this topic

Marriage and divorce rates by state

Sources

Census Bureau, American Community Survey 1-year estimates, 2025, table B25010; 2025; released October 29, 2026. data.census.gov
Census Bureau, American Community Survey 1-year estimates, 2025, table B11001; 2025; released October 29, 2026. data.census.gov
Census Bureau, 2024 Cartographic Boundary Files; table cb_2024_us_state_20m; 2024; released April 10, 2025. www2.census.gov
Census Bureau, Population Estimates Program, Vintage 2025; released January 27, 2026. www2.census.gov
CDC National Center for Health Statistics, Marriage rates by State; 2024 provisional counts. www.cdc.gov
Census Bureau, American Community Survey 1-year estimates, 2025, table B12001; 2025; released October 29, 2026. data.census.gov
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
Census Bureau, 2020 Census Redistricting Data; 2020 Census (April 1, 2020); released August 12, 2021. www2.census.gov

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.