Data / Average household size / Benton County

Average household size in Benton County

Average household size in Benton County was 2.7 persons per household in 2024, according to the U.S. Census Bureau. That is down 0.4% from 2023. That is the 6th highest of 39 counties in 2024.

2024, persons per household2.7
Change on 2023-0.4%
Rank6th of 39Counties in Washington ranked
Series high2.72021
Series low2.72024

Next release: Friday, 29 January 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Average household size in Benton County, 2021 to 2024

2.72.712.722.7320212022202320242021: 2.7 persons per household2022: 2.7 persons per household2023: 2.7 persons per household2024: 2.7 persons per household2.72.712.722.73202120242021: 2.7 persons per household2022: 2.7 persons per household2023: 2.7 persons per household2024: 2.7 persons per household
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, published 2026-01-29.
All 4 values
Periodpersons per household
20242.7
20232.7
20222.7
20212.7

Compared with Washington and United States

Place2024
Benton County2.7
Washington2.5
United States2.5

Benton County compared with nearby places

Adams County: 3.3 persons per householdAsotin County: 2.4 persons per householdBenton County: 2.7 persons per householdChelan County: 2.5 persons per householdClallam County: 2.2 persons per householdClark County: 2.6 persons per householdColumbia County: 2.1 persons per householdCowlitz County: 2.5 persons per householdDouglas County: 2.7 persons per householdFerry County: 2.3 persons per householdFranklin County: 3.2 persons per householdGarfield County: 2.3 persons per householdGrant County: 2.8 persons per householdGrays Harbor County: 2.4 persons per householdIsland County: 2.4 persons per householdJefferson County: 2 persons per householdKing County: 2.4 persons per householdKitsap County: 2.5 persons per householdKittitas County: 2.3 persons per householdKlickitat County: 2.3 persons per householdLewis County: 2.6 persons per householdLincoln County: 2.4 persons per householdMason County: 2.6 persons per householdOkanogan County: 2.3 persons per householdPacific County: 2.2 persons per householdPend Oreille County: 2.3 persons per householdPierce County: 2.6 persons per householdSan Juan County: 2 persons per householdSkagit County: 2.5 persons per householdSkamania County: 2.5 persons per householdSnohomish County: 2.6 persons per householdSpokane County: 2.4 persons per householdStevens County: 2.5 persons per householdThurston County: 2.5 persons per householdWahkiakum County: 2.2 persons per householdWalla Walla County: 2.4 persons per householdWhatcom County: 2.4 persons per householdWhitman County: 2.2 persons per householdYakima County: 2.9 persons per household
  • Under 2.2
  • 2.2 to 2.3
  • 2.3 to 2.4
  • 2.4 to 2.5
  • 2.5 to 2.6
  • 2.6 and over
Average household size, 2024, persons per household. Benton County is outlined. Same source and period for every area shown. Source: U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Rankings

Definition

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.

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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 (Average household size, Benton County, 2021 to 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, Average household size, Benton County, 2021 to 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/en/average-household-size/benton-county-washington. 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. Average household size, Benton County, 2021 to 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/en/average-household-size/benton-county-washington.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, Average household size, Benton County, 2021 to 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/en/average-household-size/benton-county-washington (Accessed: 12 October 2026).

BibTeX
@misc{census_average_household_size_benton_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25010: average household size of occupied housing units: Average household size, Benton County, 2021 to 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/en/average-household-size/benton-county-washington. 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: Average household size, Benton County, 2021 to 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/en/average-household-size/benton-county-washington
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/average-household-size/benton-county-washington.
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

What is the average household size in Benton County?

Average household size in Benton County was 2.7 persons per household in 2024, according to the U.S. Census Bureau. That is down 0.4% from 2023. That is the 6th highest of 39 counties in 2024.

Where does this figure come from?

U.S. Census Bureau. American Community Survey 5-year estimates, table B25010: average household size of occupied housing units. Retrieved by Invokely on 2026-10-12.

What was the highest average household size in Benton County?

2.7 persons per household in 2021, the highest value since 2021 in this series.

Related statistics for Benton County

All statistics for Benton County | Benton County in figures