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

Counties in Ohio by population aged 18 to 64

Athens County had the highest population aged 18 to 64 of 88 counties in 2020, at 69.8%. Holmes County had the lowest, at 54.9%. The median was 57.9% and the figure for Ohio was 59.9%. Source: the U.S. Census Bureau.

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Highest69.8Athens County
Lowest54.9Holmes County
Median57.988 counties
Ohio59.9History

Map of counties, 2020

Adams County: 56.9 %Allen County: 57.6 %Ashland County: 57 %Ashtabula County: 57.6 %Athens County: 69.8 %Auglaize County: 56.7 %Belmont County: 58.7 %Brown County: 57.9 %Butler County: 61.1 %Carroll County: 56.8 %Champaign County: 57.9 %Clark County: 57.2 %Clermont County: 59.6 %Clinton County: 59.6 %Columbiana County: 58.1 %Coshocton County: 55.8 %Crawford County: 56.7 %Cuyahoga County: 60.7 %Darke County: 55.4 %Defiance County: 56.8 %Delaware County: 59 %Erie County: 56.4 %Fairfield County: 59 %Fayette County: 57.3 %Franklin County: 64.2 %Fulton County: 56.9 %Gallia County: 56.8 %Geauga County: 55.2 %Greene County: 60.9 %Guernsey County: 57.6 %Hamilton County: 61.2 %Hancock County: 59.3 %Hardin County: 59.6 %Harrison County: 55.7 %Henry County: 57 %Highland County: 57 %Hocking County: 58.5 %Holmes County: 54.9 %Huron County: 58 %Jackson County: 57.7 %Jefferson County: 58.3 %Knox County: 57.8 %Lake County: 59.3 %Lawrence County: 58 %Licking County: 59.4 %Logan County: 58 %Lorain County: 58.7 %Lucas County: 60.1 %Madison County: 62.5 %Mahoning County: 57.9 %Marion County: 60.2 %Medina County: 58.9 %Meigs County: 57.3 %Mercer County: 55.8 %Miami County: 57.4 %Monroe County: 55 %Montgomery County: 59.6 %Morgan County: 56.9 %Morrow County: 58.4 %Muskingum County: 58.4 %Noble County: 63.8 %Ottawa County: 55.4 %Paulding County: 56.3 %Perry County: 58.3 %Pickaway County: 60.7 %Pike County: 57.7 %Portage County: 63.5 %Preble County: 56.8 %Putnam County: 56.3 %Richland County: 58 %Ross County: 61 %Sandusky County: 57.6 %Scioto County: 59.4 %Seneca County: 58.8 %Shelby County: 57.7 %Stark County: 58.3 %Summit County: 60 %Trumbull County: 57.7 %Tuscarawas County: 56.9 %Union County: 61.5 %Van Wert County: 56.8 %Vinton County: 58.8 %Warren County: 59.9 %Washington County: 58.5 %Wayne County: 57.3 %Williams County: 57.6 %Wood County: 62.6 %Wyandot County: 57 %
  • Under 57
  • 57 to 58
  • 58 to 59
  • 59 to 60
  • 60 and over
%, 2020. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2020

Athens County: 69.8 %Athens County69.8Franklin County: 64.2 %Franklin County64.2Noble County: 63.8 %Noble County63.8Portage County: 63.5 %Portage County63.5Wood County: 62.6 %Wood County62.6Madison County: 62.5 %Madison County62.5Union County: 61.5 %Union County61.5Hamilton County: 61.2 %Hamilton County61.2Butler County: 61.1 %Butler County61.1Ross County: 61 %Ross County61Greene County: 60.9 %Greene County60.9Cuyahoga County: 60.7 %Cuyahoga County60.7Pickaway County: 60.7 %Pickaway County60.7Marion County: 60.2 %Marion County60.2Lucas County: 60.1 %Lucas County60.1Summit County: 60 %Summit County60Warren County: 59.9 %Warren County59.9Hardin County: 59.6 %Hardin County59.6Clinton County: 59.6 %Clinton County59.6Clermont County: 59.6 %Clermont County59.6Montgomery County: 59.6 %Montgomery County59.6Licking County: 59.4 %Licking County59.4Scioto County: 59.4 %Scioto County59.4Lake County: 59.3 %Lake County59.3Hancock County: 59.3 %Hancock County59.3Delaware County: 59 %Delaware County59Fairfield County: 59 %Fairfield County59Medina County: 58.9 %Medina County58.9Seneca County: 58.8 %Seneca County58.8Vinton County: 58.8 %Vinton County58.8Lorain County: 58.7 %Lorain County58.7Belmont County: 58.7 %Belmont County58.7Washington County: 58.5 %Washington County58.5Hocking County: 58.5 %Hocking County58.5Muskingum County: 58.4 %Muskingum County58.4Morrow County: 58.4 %Morrow County58.4Perry County: 58.3 %Perry County58.3Jefferson County: 58.3 %Jefferson County58.3Stark County: 58.3 %Stark County58.3Columbiana County: 58.1 %Columbiana County58.1Athens County: 69.8 %Athens County69.8Franklin County: 64.2 %Franklin County64.2Noble County: 63.8 %Noble County63.8Portage County: 63.5 %Portage County63.5Wood County: 62.6 %Wood County62.6Madison County: 62.5 %Madison County62.5Union County: 61.5 %Union County61.5Hamilton County: 61.2 %Hamilton County61.2Butler County: 61.1 %Butler County61.1Ross County: 61 %Ross County61Greene County: 60.9 %Greene County60.9Cuyahoga County: 60.7 %Cuyahoga County60.7Pickaway County: 60.7 %Pickaway County60.7Marion County: 60.2 %Marion County60.2Lucas County: 60.1 %Lucas County60.1Summit County: 60 %Summit County60Warren County: 59.9 %Warren County59.9Hardin County: 59.6 %Hardin County59.6Clinton County: 59.6 %Clinton County59.6Clermont County: 59.6 %Clermont County59.6Montgomery County: 59.6 %Montgomery County59.6Licking County: 59.4 %Licking County59.4Scioto County: 59.4 %Scioto County59.4Lake County: 59.3 %Lake County59.3Hancock County: 59.3 %Hancock County59.3Delaware County: 59 %Delaware County59Fairfield County: 59 %Fairfield County59Medina County: 58.9 %Medina County58.9Seneca County: 58.8 %Seneca County58.8Vinton County: 58.8 %Vinton County58.8Lorain County: 58.7 %Lorain County58.7Belmont County: 58.7 %Belmont County58.7Washington County: 58.5 %Washington County58.5Hocking County: 58.5 %Hocking County58.5Muskingum County: 58.4 %Muskingum County58.4Morrow County: 58.4 %Morrow County58.4Perry County: 58.3 %Perry County58.3Jefferson County: 58.3 %Jefferson County58.3Stark County: 58.3 %Stark County58.3Columbiana County: 58.1 %Columbiana County58.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2020 (%)Change on 2019
1Athens County69.8-0.4 pts
2Franklin County64.2-0.5 pts
3Noble County63.8+0.3 pts
4Portage County63.5-0.4 pts
5Wood County62.6-0.3 pts
6Madison County62.5-0.7 pts
7Union County61.5-0.3 pts
8Hamilton County61.2-0.6 pts
9Butler County61.1-0.3 pts
10Ross County61-0.6 pts
11Greene County60.9-0.6 pts
12Cuyahoga County60.7-0.4 pts
13Pickaway County60.7-0.5 pts
14Marion County60.2-0.8 pts
15Lucas County60.1-0.5 pts
16Summit County60-0.6 pts
17Warren County59.9-0.1 pts
18Hardin County59.6-0.4 pts
19Clinton County59.6-0.5 pts
20Clermont County59.6-0.3 pts
21Montgomery County59.6-0.4 pts
22Licking County59.4-0.4 pts
23Scioto County59.4-0.7 pts
24Lake County59.3-0.4 pts
25Hancock County59.3-0.6 pts
26Delaware County59-0.1 pts
27Fairfield County59-0.3 pts
28Medina County58.9-0.4 pts
29Seneca County58.8-0.5 pts
30Vinton County58.8-0.5 pts
31Lorain County58.7-0.4 pts
32Belmont County58.7-0.7 pts
33Washington County58.5-0.4 pts
34Hocking County58.5-0.4 pts
35Muskingum County58.4-0.4 pts
36Morrow County58.4-0.5 pts
37Perry County58.3-0.5 pts
38Jefferson County58.3-0.6 pts
39Stark County58.3-0.5 pts
40Columbiana County58.1-0.6 pts
41Richland County58-0.6 pts
42Lawrence County58-0.6 pts
43Logan County58-0.5 pts
44Huron County58-0.4 pts
45Champaign County57.9-0.2 pts
46Mahoning County57.9-0.5 pts
47Brown County57.9-0.5 pts
48Knox County57.8-0.8 pts
49Shelby County57.7-0.4 pts
50Pike County57.7-0.6 pts
51Jackson County57.7-0.5 pts
52Trumbull County57.7-0.5 pts
53Ashtabula County57.6-0.8 pts
54Sandusky County57.6-0.5 pts
54Williams County57.6-0.5 pts
56Allen County57.6-0.7 pts
57Guernsey County57.6-0.4 pts
58Miami County57.4-0.3 pts
59Meigs County57.3-0.8 pts
60Wayne County57.3-0.3 pts
61Fayette County57.3-0.6 pts
62Clark County57.2-0.4 pts
63Highland County57-0.4 pts
64Ashland County57-0.5 pts
65Henry County57-0.5 pts
66Wyandot County57-0.2 pts
67Tuscarawas County56.9-0.6 pts
68Morgan County56.9-0.2 pts
69Adams County56.9-0.7 pts
70Fulton County56.9-0.7 pts
71Gallia County56.8-0.6 pts
72Preble County56.8-0.5 pts
73Defiance County56.8-0.5 pts
74Van Wert County56.8-0.5 pts
75Carroll County56.8-0.5 pts
76Crawford County56.7-0.7 pts
77Auglaize County56.7-0.4 pts
78Erie County56.4-0.4 pts
79Paulding County56.3-0.6 pts
80Putnam County56.3-0.5 pts
81Coshocton County55.8-0.5 pts
82Mercer County55.8-0.8 pts
83Harrison County55.7-0.4 pts
84Ottawa County55.4-0.5 pts
85Darke County55.4-0.5 pts
86Geauga County55.2-0.5 pts
87Monroe County55-0.3 pts
88Holmes County54.9-0.1 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, 2020) [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, 2020. 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?period=2020. 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, 2020. 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?period=2020.

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, 2020 [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?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2020,
  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, 2020}},
  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?period=2020. 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, 2020
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?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/ohio-counties?period=2020.
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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Rank Counties in Ohio by population aged 18 to 64 using official data, and cite the source.
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Questions

Which county has the highest population aged 18 to 64?

Athens County, with 69.8% in 2020, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Holmes County, with 54.9% in 2020.

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