Data / Rankings / Population aged 18 to 64 / Counties in Ohio

Counties in Ohio by population aged 18 to 64, 2025

Athens County had the highest population aged 18 to 64 of 88 counties in 2025, at 69.6%. Geauga County had the lowest, at 53.1%. The median was 56.5% and the figure for Ohio was 58.6%. Source: the U.S. Census Bureau.

Highest69.6Athens County
Lowest53.1Geauga County
Median56.588 counties
Ohio58.6History

Top 40 counties, 2025

Athens County: 69.6 %Athens County69.6Franklin County: 63 %Franklin County63Noble County: 62.3 %Noble County62.3Portage County: 61.7 %Portage County61.7Madison County: 61.6 %Madison County61.6Wood County: 61.4 %Wood County61.4Union County: 61.3 %Union County61.3Pickaway County: 60.4 %Pickaway County60.4Butler County: 60.3 %Butler County60.3Hamilton County: 60 %Hamilton County60Ross County: 59.9 %Ross County59.9Greene County: 59.8 %Greene County59.8Delaware County: 59.5 %Delaware County59.5Warren County: 59.1 %Warren County59.1Cuyahoga County: 58.8 %Cuyahoga County58.8Hardin County: 58.5 %Hardin County58.5Fairfield County: 58.5 %Fairfield County58.5Clermont County: 58.5 %Clermont County58.5Summit County: 58.4 %Summit County58.4Lucas County: 58.4 %Lucas County58.4Montgomery County: 58.4 %Montgomery County58.4Marion County: 58.3 %Marion County58.3Licking County: 58.2 %Licking County58.2Scioto County: 58.1 %Scioto County58.1Hancock County: 58 %Hancock County58Seneca County: 57.7 %Seneca County57.7Lawrence County: 57.5 %Lawrence County57.5Clinton County: 57.5 %Clinton County57.5Lake County: 57.3 %Lake County57.3Medina County: 57.3 %Medina County57.3Lorain County: 57.1 %Lorain County57.1Morrow County: 57 %Morrow County57Muskingum County: 57 %Muskingum County57Vinton County: 57 %Vinton County57Hocking County: 56.9 %Hocking County56.9Champaign County: 56.9 %Champaign County56.9Richland County: 56.9 %Richland County56.9Jackson County: 56.9 %Jackson County56.9Belmont County: 56.8 %Belmont County56.8Jefferson County: 56.7 %Jefferson County56.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2025 (%)Change on 2024
1Athens County69.60 pts
2Franklin County63-0.2 pts
3Noble County62.3-0.1 pts
4Portage County61.7-0.3 pts
5Madison County61.60 pts
6Wood County61.4-0.1 pts
7Union County61.3-0.1 pts
8Pickaway County60.40 pts
9Butler County60.3-0.1 pts
10Hamilton County60-0.3 pts
11Ross County59.90 pts
12Greene County59.8-0.1 pts
13Delaware County59.5+0.1 pts
14Warren County59.1-0.1 pts
15Cuyahoga County58.8-0.3 pts
16Hardin County58.5-0.2 pts
17Fairfield County58.5-0.1 pts
18Clermont County58.5-0 pts
19Summit County58.4-0.2 pts
20Lucas County58.4-0.3 pts
21Montgomery County58.4-0.2 pts
22Marion County58.3-0.4 pts
23Licking County58.2-0.2 pts
24Scioto County58.1-0.1 pts
25Hancock County58-0.4 pts
26Seneca County57.7-0.2 pts
27Lawrence County57.50 pts
28Clinton County57.5-0.1 pts
29Lake County57.3-0.4 pts
30Medina County57.3-0.3 pts
31Lorain County57.1-0.3 pts
32Morrow County57-0.2 pts
33Muskingum County57-0.1 pts
34Vinton County57-0.6 pts
35Hocking County56.9-0.2 pts
36Champaign County56.9-0.3 pts
37Richland County56.9-0.4 pts
38Jackson County56.9-0.3 pts
39Belmont County56.8-0.2 pts
40Jefferson County56.7-0.1 pts
41Perry County56.7-0.1 pts
42Huron County56.7-0.3 pts
43Stark County56.7-0.3 pts
44Fayette County56.6-0.2 pts
45Meigs County56.4-0 pts
46Washington County56.4-0.3 pts
47Allen County56.4-0.2 pts
48Brown County56.4-0.2 pts
49Shelby County56.4-0.1 pts
50Miami County56.4-0.1 pts
51Clark County56.3-0.3 pts
52Pike County56.2-0.3 pts
53Ashtabula County56.2-0.1 pts
54Knox County56.2-0.3 pts
55Logan County56.2-0.3 pts
56Wayne County56-0.1 pts
57Trumbull County56-0.2 pts
58Columbiana County56-0.4 pts
59Mahoning County56-0.2 pts
60Guernsey County55.9-0.3 pts
61Sandusky County55.9-0.2 pts
62Highland County55.9-0 pts
63Williams County55.9-0.5 pts
64Fulton County55.8-0.1 pts
65Adams County55.7-0 pts
66Defiance County55.5-0.2 pts
67Henry County55.5-0.2 pts
68Crawford County55.5-0.3 pts
69Paulding County55.4-0.2 pts
70Ashland County55.4-0.2 pts
70Preble County55.4-0.3 pts
72Wyandot County55.3-0.5 pts
73Van Wert County55.3-0.2 pts
74Gallia County55.2-0.1 pts
75Tuscarawas County55.2-0.4 pts
76Auglaize County55.1-0.4 pts
77Morgan County54.9-0.8 pts
78Carroll County54.8-0.6 pts
79Erie County54.6-0.3 pts
80Coshocton County54.5-0.3 pts
81Holmes County54.2-0.3 pts
82Putnam County53.9-0.4 pts
83Darke County53.9-0.4 pts
84Harrison County53.6+0.1 pts
85Monroe County53.6-0.2 pts
86Ottawa County53.4-0.5 pts
87Mercer County53.2-0.5 pts
88Geauga County53.1-0.5 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. 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). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Ohio by population aged 18 to 64, 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Ohio by population aged 18 to 64, 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/ohio-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Ohio by population aged 18 to 64, 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/ohio-counties.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Ohio by population aged 18 to 64, 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/ohio-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2025,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Ohio by population aged 18 to 64, 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/ohio-counties. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Ohio by population aged 18 to 64, 2025
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/ohio-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/ohio-counties.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest population aged 18 to 64?

Athens County, with 69.6% in 2025, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Geauga County, with 53.1% in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in Ohio: more rankings