Data / Rankings / Average household size / Counties in Ohio

Counties in Ohio by average household size, 2024

Holmes County had the highest average household size of 88 counties in 2024, at 3.3 persons per household. Ottawa County had the lowest, at 2.1 persons per household. The median was 2.4 persons per household and the figure for Ohio was 2.4 persons per household. Source: the U.S. Census Bureau.

Highest3.3Holmes County
Lowest2.1Ottawa County
Median2.488 counties
Ohio2.4History

Top 40 counties, 2024

Holmes County: 3.3 persons per householdHolmes County3.3Delaware County: 2.7 persons per householdDelaware County2.7Union County: 2.7 persons per householdUnion County2.7Warren County: 2.7 persons per householdWarren County2.7Fairfield County: 2.7 persons per householdFairfield County2.7Geauga County: 2.6 persons per householdGeauga County2.6Perry County: 2.6 persons per householdPerry County2.6Adams County: 2.6 persons per householdAdams County2.6Morrow County: 2.6 persons per householdMorrow County2.6Butler County: 2.6 persons per householdButler County2.6Licking County: 2.6 persons per householdLicking County2.6Putnam County: 2.6 persons per householdPutnam County2.6Noble County: 2.6 persons per householdNoble County2.6Mercer County: 2.6 persons per householdMercer County2.6Pickaway County: 2.6 persons per householdPickaway County2.6Madison County: 2.6 persons per householdMadison County2.6Highland County: 2.5 persons per householdHighland County2.5Knox County: 2.5 persons per householdKnox County2.5Brown County: 2.5 persons per householdBrown County2.5Wayne County: 2.5 persons per householdWayne County2.5Shelby County: 2.5 persons per householdShelby County2.5Jackson County: 2.5 persons per householdJackson County2.5Medina County: 2.5 persons per householdMedina County2.5Lawrence County: 2.5 persons per householdLawrence County2.5Van Wert County: 2.5 persons per householdVan Wert County2.5Clermont County: 2.5 persons per householdClermont County2.5Coshocton County: 2.5 persons per householdCoshocton County2.5Defiance County: 2.5 persons per householdDefiance County2.5Fayette County: 2.5 persons per householdFayette County2.5Fulton County: 2.5 persons per householdFulton County2.5Muskingum County: 2.5 persons per householdMuskingum County2.5Ashland County: 2.5 persons per householdAshland County2.5Champaign County: 2.5 persons per householdChampaign County2.5Gallia County: 2.5 persons per householdGallia County2.5Huron County: 2.5 persons per householdHuron County2.5Paulding County: 2.5 persons per householdPaulding County2.5Pike County: 2.5 persons per householdPike County2.5Clinton County: 2.4 persons per householdClinton County2.4Hardin County: 2.4 persons per householdHardin County2.4Miami County: 2.4 persons per householdMiami County2.4
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
1Holmes County3.30%
2Delaware County2.7+0.4%
3Union County2.70%
4Warren County2.70%
5Fairfield County2.7+0.4%
6Geauga County2.6-0.4%
7Perry County2.6-0.4%
8Adams County2.6-1.9%
8Morrow County2.6+0.4%
10Butler County2.6-0.4%
10Licking County2.6+0.4%
12Putnam County2.60%
13Noble County2.6-1.9%
14Mercer County2.6-0.4%
14Pickaway County2.6-0.8%
16Madison County2.6-0.4%
17Highland County2.5-0.4%
17Knox County2.50%
19Brown County2.5+0.4%
19Wayne County2.5-0.4%
21Shelby County2.5-0.8%
22Jackson County2.5-2%
23Medina County2.5-0.4%
24Lawrence County2.5-1.6%
25Van Wert County2.5+0.8%
26Clermont County2.5-0.4%
26Coshocton County2.5+0.8%
26Defiance County2.5+0.4%
26Fayette County2.5+0.4%
26Fulton County2.5-1.2%
26Muskingum County2.5-0.4%
32Ashland County2.5-0.4%
32Champaign County2.5-0.4%
32Gallia County2.5-2.8%
32Huron County2.5-0.4%
32Paulding County2.5-1.2%
32Pike County2.5-0.8%
38Clinton County2.4-1.2%
38Hardin County2.40%
38Miami County2.40%
41Lorain County2.4-0.4%
41Preble County2.40%
43Auglaize County2.40%
43Marion County2.4-1.2%
45Darke County2.4+0.4%
45Scioto County2.4-1.6%
47Ashtabula County2.4-0.8%
47Ross County2.4-1.6%
49Allen County2.4-1.2%
49Greene County2.4-0.4%
49Hocking County2.4-0.8%
49Meigs County2.4-3.3%
53Clark County2.4-1.2%
53Henry County2.4-2.1%
53Portage County2.4-0.8%
53Tuscarawas County2.4-1.2%
53Wyandot County2.4+0.4%
58Franklin County2.40%
58Harrison County2.4-1.3%
58Morgan County2.4-2.1%
58Richland County2.40%
58Vinton County2.4-2.1%
63Athens County2.4-0.8%
63Carroll County2.4+2.2%
63Columbiana County2.4-0.8%
63Stark County2.40%
67Logan County2.30%
67Sandusky County2.3-0.8%
67Seneca County2.3-0.8%
70Wood County2.30%
71Monroe County2.3-2.9%
71Washington County2.3-0.4%
73Guernsey County2.3-0.4%
73Hancock County2.30%
73Williams County2.3-0.4%
76Hamilton County2.3-0.4%
76Jefferson County2.3-0.4%
76Lucas County2.3-0.9%
76Summit County2.3-0.9%
80Crawford County2.30%
80Trumbull County2.3-0.4%
82Belmont County2.3-3.4%
82Lake County2.3-0.9%
84Mahoning County2.30%
85Montgomery County2.2-0.4%
86Erie County2.2-2.2%
87Cuyahoga County2.2-0.5%
88Ottawa County2.1-2.7%

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 (Counties in Ohio 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, Counties in Ohio 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/ohio-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. Counties in Ohio 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/ohio-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25010: average household size of occupied housing units, Counties in Ohio 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/ohio-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25010: average household size of occupied housing units: Counties in Ohio 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/ohio-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: Counties in Ohio 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/ohio-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/average-household-size/ohio-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  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Ohio by average household size using official data, and cite the source.
rank_places {"indicator":"average_household_size","level":"province","within":"Ohio","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=average_household_size&level=province&within=Ohio&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest average household size?

Holmes County, with 3.3 persons per household in 2024, according to the U.S. Census Bureau.

Which county has the lowest average household size?

Ottawa County, with 2.1 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

Counties in Ohio: more rankings