Data / Rankings / Average household size / US counties

US counties by average household size, 2024

Oglala Lakota County had the highest average household size of 3144 counties in 2024, at 4.5 persons per household. Kalawao County had the lowest, at 1.2 persons per household. The median was 2.4 persons per household and the figure for the United States was 2.5 persons per household. Source: the U.S. Census Bureau.

Highest4.5Oglala Lakota County
Lowest1.2Kalawao County
Median2.43144 counties
United States2.5History

Top 40 counties, 2024

Oglala Lakota County: 4.5 persons per householdOglala Lakota County4.5Kusilvak Census Area: 4.2 persons per householdKusilvak Census Area4.2Northwest Arctic Borough: 3.8 persons per householdNorthwest Arctic Borough3.8Wheeler County: 3.8 persons per householdWheeler County3.8Jim Hogg County: 3.6 persons per householdJim Hogg County3.6Bethel Census Area: 3.6 persons per householdBethel Census Area3.6Alpine County: 3.6 persons per householdAlpine County3.6Bennett County: 3.6 persons per householdBennett County3.6Sterling County: 3.6 persons per householdSterling County3.6Todd County: 3.6 persons per householdTodd County3.6Buffalo County: 3.6 persons per householdBuffalo County3.6Aleutians West Census Area: 3.5 persons per householdAleutians West Census Area3.5Imperial County: 3.5 persons per householdImperial County3.5Hudspeth County: 3.5 persons per householdHudspeth County3.5La Salle County: 3.5 persons per householdLa Salle County3.5Starr County: 3.4 persons per householdStarr County3.4Calhoun County: 3.4 persons per householdCalhoun County3.4Madera County: 3.4 persons per householdMadera County3.4North Slope Borough: 3.4 persons per householdNorth Slope Borough3.4Utah County: 3.4 persons per householdUtah County3.4McMullen County: 3.4 persons per householdMcMullen County3.4Morgan County: 3.4 persons per householdMorgan County3.4Corson County: 3.4 persons per householdCorson County3.4Kaufman County: 3.4 persons per householdKaufman County3.4Jackson County: 3.3 persons per householdJackson County3.3Nome Census Area: 3.3 persons per householdNome Census Area3.3Big Horn County: 3.3 persons per householdBig Horn County3.3Merced County: 3.3 persons per householdMerced County3.3Roosevelt County: 3.3 persons per householdRoosevelt County3.3Tooele County: 3.3 persons per householdTooele County3.3Tulare County: 3.3 persons per householdTulare County3.3Sioux County: 3.3 persons per householdSioux County3.3Webb County: 3.3 persons per householdWebb County3.3Hidalgo County: 3.3 persons per householdHidalgo County3.3Thurston County: 3.3 persons per householdThurston County3.3Holmes County: 3.3 persons per householdHolmes County3.3Adams County: 3.3 persons per householdAdams County3.3Hamilton County: 3.3 persons per householdHamilton County3.3McKinley County: 3.3 persons per householdMcKinley County3.3San Benito County: 3.3 persons per householdSan Benito County3.3
persons per household. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. Retrieved 2026-10-12.

Full ranking

RankCounties2024
persons per household		Change on 2023
1Oglala Lakota County4.5-7.9%
2Kusilvak Census Area4.2-1.7%
3Northwest Arctic Borough3.8-2.6%
4Wheeler County3.8-10.6%
5Jim Hogg County3.6-6.2%
6Bethel Census Area3.6-3.2%
7Alpine County3.6+5.6%
8Bennett County3.6+11.1%
8Sterling County3.6+6.5%
10Todd County3.6-3.3%
11Buffalo County3.6+0.6%
12Aleutians West Census Area3.5-2.8%
13Imperial County3.5-0.6%
14Hudspeth County3.5+12.3%
14La Salle County3.5-1.4%
16Starr County3.4-2%
17Calhoun County3.4-3.1%
17Madera County3.4-0.3%
19North Slope Borough3.4+2.7%
20Utah County3.4-0.6%
21McMullen County3.4-8.9%
21Morgan County3.4-3.2%
23Corson County3.4-2.9%
24Kaufman County3.4+5%
25Jackson County3.3-11%
25Nome Census Area3.3-0.6%
27Big Horn County3.3-4%
27Merced County3.30%
27Roosevelt County3.3-4.6%
30Tooele County3.3-0.3%
30Tulare County3.3-0.3%
32Sioux County3.3-6%
33Webb County3.3-1.5%
34Hidalgo County3.3-0.9%
34Thurston County3.3-1.5%
36Holmes County3.30%
37Adams County3.3+0.6%
37Hamilton County3.3+1.2%
37McKinley County3.3-2.4%
37San Benito County3.30%
37Willacy County3.3-1.8%
42Madison County3.2-6.1%
43Echols County3.2+5.6%
43Jefferson County3.2-0.3%
43Manassas Park city3.2-1.5%
43Ziebach County3.2-3%
47Juab County3.2-0.3%
47Rockland County3.20%
49Franklin County3.2-1.5%
50San Bernardino County3.2-0.3%
51Maverick County3.2+1.9%
51San Joaquin County3.20%
53Davis County3.20%
53Gaines County3.2+3.2%
55Kings County3.2-0.6%
56Monterey County3.20%
57Liberty County3.2+2.3%
57Riverside County3.2-0.6%
59LaGrange County3.1-0.3%
60Rolette County3.1-3.1%
61Cimarron County3.1-1.9%
61Kern County3.1-1%
61Reagan County3.1+0.6%
64Box Elder County3.1+0.3%
64Dillingham Census Area3.1-2.2%
66Edwards County3.1+8%
66Kauai County3.1-0.3%
66Prince William County3.1-0.6%
66San Juan County3.1+2.3%
66Waller County3.1+1.6%
71Stanislaus County3.1-0.6%
72Fresno County3.1-0.3%
72Lyman County3.10%
74Bailey County3.10%
74Schuyler County3.1-4.4%
76Bingham County3.1+0.7%
76Cache County3.1-1.3%
76Cameron County3.1-1.6%
76Stafford County3.1-0.3%
80Camas County3-10.9%
80Franklin County3+1%
80Glacier County3-3.2%
80Piute County3+1.7%
80Sanpete County3+0.3%
85Apache County3-3.5%
85Concho County3+5.9%
85Dewey County3-1.3%
85Fort Bend County3-0.3%
85Iron County3+0.7%
85Kendall County30%
91Deaf Smith County3-1.3%
91Grant County3-0.7%
91Hanson County3+0.3%
91Jerome County3+0.7%
91Loudoun County30%
91Manassas city3-0.3%
91Millard County3-0.7%
91Uintah County30%
99Atascosa County3+1%
100Castro County3+0.7%
100Frio County3+6.4%
102Duval County3-3.2%
102Forsyth County30%
102Menominee County3-5.1%
102Nassau County3-0.3%
106Cibola County3-2.3%
106Gwinnett County30%
106Osceola County3-3.2%
106Parmer County3-2%
106Rockwall County3+1.4%
106Scotland County3-0.7%
106Texas County30%
106Zapata County3+0.7%
114Chambers County3+0.3%
114Moore County3+2.4%
114Paulding County3+0.3%
117Beaver County3+1.4%
117Blaine County30%
117Jackson County30%
117Mellette County3-8.6%
121Cassia County3-1.7%
121Charles Mix County3-1%
121Union County30%
124Ellis County2.9+0.3%
124Johnson County2.9+0.3%
124Jones County2.9+1.4%
124Long County2.9-0.7%
124Socorro County2.9-1.7%
124Sutter County2.9-0.3%
124Ventura County2.9-1%
124Wise County2.9+1.4%
132Borden County2.9-3.3%
132Clark County2.9-0.7%
132Columbia County2.9-3.9%
132Suffolk County2.9+0.3%
136Crowley County2.9-7%
136Pike County2.9-1.4%
138Barrow County2.90%
138Hardee County2.9+0.3%
138Seward County2.9-1.4%
141Bonneville County2.9+0.3%
141Bryan County2.9-1.4%
141Charlton County2.9-1.4%
141Duchesne County2.9-1%
141Jim Wells County2.9+0.3%
141Lea County2.9+0.3%
141Maui County2.9-0.7%
141Parker County2.9+0.7%
141Yuba County2.9-0.3%
150Bear Lake County2.9+2.8%
150Childress County2.9+16.5%
150Colusa County2.90%
150Hughes County2.9-2%
150Oconee County2.90%
150Sevier County2.9-0.7%
150Yakima County2.9-0.7%
157Adams County2.9+0.3%
157Emery County2.90%
157Fremont County2.9-1.7%
157Glenn County2.9-1%
157Santa Cruz County2.9+1.1%
157Wilson County2.9+0.3%
163Canyon County2.90%
163Henry County2.9-0.7%
163Lewis County2.9+1.4%
163Lincoln County2.9+1.1%
163Medina County2.9+0.3%
163Orange County2.9-1%
163Telfair County2.9-8.6%
163Yoakum County2.9-0.3%
171Benson County2.9-5.9%
171Canadian County2.9+2.5%
171Caribou County2.9-1%
171El Paso County2.9-0.7%
171Graham County2.9-0.3%
171Hall County2.9-1%
171Passaic County2.90%
171Power County2.9-2.4%
171San Juan County2.9-1.7%
171Uvalde County2.9+0.4%
171Walton County2.9+0.7%
171Zavala County2.9+2.9%
183Bledsoe County2.90%
183Colfax County2.9-0.7%
183Honolulu County2.9-1%
183Richmond County2.9-0.3%
187Dakota County2.8-2.1%
187Hutchinson County2.8-2.4%
187Oglethorpe County2.8-1.4%
187Oldham County2.8-1.4%
187Orange County2.8-0.7%
187Owyhee County2.8-0.4%
187Scott County2.80%
187Will County2.8-0.7%
195Davis County2.8-0.7%
195Effingham County2.8-0.4%
195Elkhart County2.8-0.4%
195Ford County2.8-0.4%
195Hamlin County2.8+1.1%
195Hendry County2.8+2.5%
195Morrow County2.8+0.4%
195Newton County2.8+0.4%
195Smith County2.80%
195Union County2.8+2.2%
195Wasatch County2.8-4.7%
195Weber County2.8-0.7%
207Baker County2.8+0.4%
207Brazoria County2.8+0.4%
207Clark County2.80%
207Finney County2.80%
207Hardeman County2.8+4.8%
207Johnson County2.8+1.4%
207Knox County2.8-6%
207Lanier County2.8-0.4%
207Leake County2.80%
207Oldham County2.8+6%
207Rich County2.8-10.2%
207Santa Clara County2.8-1.1%
207Union County2.8+0.4%
207Valley County2.8-10.5%
207Webster County2.8-0.4%
207Webster County2.8+2.2%
223Banks County2.8+1.8%
223Bastrop County2.8-0.7%
223Dallam County2.8-6.6%
223Douglas County2.8-0.4%
223Los Angeles County2.8-1.4%
223Santa Barbara County2.8-0.7%
223Screven County2.8-2.4%
223Williamson County2.8+0.4%
231Calvert County2.8+0.7%
231Daviess County2.8-1.4%
231Lipscomb County2.8+5.7%
231Logan County2.8+0.7%
231Mahnomen County2.8-1.1%
231Navarro County2.8-1.4%
231Nobles County2.80%
231Pinal County2.8+2.2%
231Solano County2.8-1.1%
231Sullivan County2.8-0.7%
241Adams County2.8-1.1%
241Clayton County2.80%
241Craig County2.8+0.4%
241Culpeper County2.8-0.4%
241Grant County2.8-1.4%
241Madison County2.8-0.7%
241Spotsylvania County2.8-0.4%
241Titus County2.8-1.1%
241Trinity County2.8-3.8%
241Webster County2.8-3.5%

Showing the top 250 of 3144. The Excel download has every row.

Other periods

About this ranking

Average number of persons per private household. EU countries: EU-SILC. United States: American Community Survey five-year estimate of people in households divided by occupied housing units, where the period shown is the last year of the five-year span.

Covers private households only; people living in institutions or other group quarters are excluded. EU-SILC figures refer to the survey year. The EU and US surveys differ, so their figures are not strictly comparable.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B25010: average household size of occupied housing units (US counties by average household size, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat

MLA 9

American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US counties by average household size, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Invokely, https://invokely.ai/rankings/average-household-size/us-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. US counties by average household size, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Also distributed by Invokely, https://invokely.ai/rankings/average-household-size/us-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, US counties by average household size, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat, via Invokely: https://invokely.ai/rankings/average-household-size/us-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_us_counties_by_average_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25010: average household size of occupied housing units: US counties by average household size, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/average-household-size/us-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25010: average household size of occupied housing units: US counties by average household size, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat
L2  - https://invokely.ai/rankings/average-household-size/us-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-household-size/us-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest average household size?

Oglala Lakota County, with 4.5 persons per household in 2024, according to the U.S. Census Bureau.

Which county has the lowest average household size?

Kalawao County, with 1.2 persons per household in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. Retrieved 2026-10-12.

Average household size: other rankings

US counties: more rankings