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 2015, at 72.4%. Holmes County had the lowest, at 54.4%. The median was 59.6% and the figure for Ohio was 61.4%. Source: the U.S. Census Bureau.

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Highest72.4Athens County
Lowest54.4Holmes County
Median59.688 counties
Ohio61.4History

Map of counties, 2015

Adams County: 58.7 %Allen County: 59.9 %Ashland County: 58.8 %Ashtabula County: 59.8 %Athens County: 72.4 %Auglaize County: 58.4 %Belmont County: 61.3 %Brown County: 59.3 %Butler County: 62.3 %Carroll County: 59.1 %Champaign County: 59.4 %Clark County: 58.8 %Clermont County: 61.3 %Clinton County: 60.8 %Columbiana County: 60.4 %Coshocton County: 58.2 %Crawford County: 58.4 %Cuyahoga County: 61.9 %Darke County: 56.8 %Defiance County: 59 %Delaware County: 60 %Erie County: 58.7 %Fairfield County: 60.5 %Fayette County: 58.8 %Franklin County: 65.4 %Fulton County: 59.1 %Gallia County: 59.1 %Geauga County: 57.3 %Greene County: 63 %Guernsey County: 59.2 %Hamilton County: 62.5 %Hancock County: 61 %Hardin County: 61.5 %Harrison County: 58.1 %Henry County: 58.7 %Highland County: 58.2 %Hocking County: 59.4 %Holmes County: 54.4 %Huron County: 59.6 %Jackson County: 59.5 %Jefferson County: 60.5 %Knox County: 59.9 %Lake County: 60.8 %Lawrence County: 59.6 %Licking County: 60.7 %Logan County: 59.6 %Lorain County: 60.5 %Lucas County: 62 %Madison County: 64.4 %Mahoning County: 60.1 %Marion County: 62.5 %Medina County: 60.5 %Meigs County: 59.6 %Mercer County: 57.9 %Miami County: 59 %Monroe County: 56.9 %Montgomery County: 60.8 %Morgan County: 58 %Morrow County: 59.6 %Muskingum County: 59.8 %Noble County: 62.4 %Ottawa County: 57.8 %Paulding County: 58.7 %Perry County: 60.2 %Pickaway County: 62.1 %Pike County: 59.3 %Portage County: 65.5 %Preble County: 58.9 %Putnam County: 58.6 %Richland County: 59.8 %Ross County: 62.7 %Sandusky County: 59.3 %Scioto County: 60.9 %Seneca County: 60.6 %Shelby County: 59 %Stark County: 60 %Summit County: 61.9 %Trumbull County: 59.5 %Tuscarawas County: 58.8 %Union County: 62.7 %Van Wert County: 58.5 %Vinton County: 60.7 %Warren County: 60.5 %Washington County: 60.5 %Wayne County: 58.9 %Williams County: 59.2 %Wood County: 64.5 %Wyandot County: 58.2 %
  • Under 59
  • 59 to 60
  • 60 to 61
  • 61 to 62
  • 62 and over
%, 2015. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2015

Athens County: 72.4 %Athens County72.4Portage County: 65.5 %Portage County65.5Franklin County: 65.4 %Franklin County65.4Wood County: 64.5 %Wood County64.5Madison County: 64.4 %Madison County64.4Greene County: 63 %Greene County63Ross County: 62.7 %Ross County62.7Union County: 62.7 %Union County62.7Hamilton County: 62.5 %Hamilton County62.5Marion County: 62.5 %Marion County62.5Noble County: 62.4 %Noble County62.4Butler County: 62.3 %Butler County62.3Pickaway County: 62.1 %Pickaway County62.1Lucas County: 62 %Lucas County62Cuyahoga County: 61.9 %Cuyahoga County61.9Summit County: 61.9 %Summit County61.9Hardin County: 61.5 %Hardin County61.5Clermont County: 61.3 %Clermont County61.3Belmont County: 61.3 %Belmont County61.3Hancock County: 61 %Hancock County61Scioto County: 60.9 %Scioto County60.9Lake County: 60.8 %Lake County60.8Montgomery County: 60.8 %Montgomery County60.8Clinton County: 60.8 %Clinton County60.8Vinton County: 60.7 %Vinton County60.7Licking County: 60.7 %Licking County60.7Seneca County: 60.6 %Seneca County60.6Warren County: 60.5 %Warren County60.5Medina County: 60.5 %Medina County60.5Lorain County: 60.5 %Lorain County60.5Fairfield County: 60.5 %Fairfield County60.5Washington County: 60.5 %Washington County60.5Jefferson County: 60.5 %Jefferson County60.5Columbiana County: 60.4 %Columbiana County60.4Perry County: 60.2 %Perry County60.2Mahoning County: 60.1 %Mahoning County60.1Delaware County: 60 %Delaware County60Stark County: 60 %Stark County60Allen County: 59.9 %Allen County59.9Knox County: 59.9 %Knox County59.9Athens County: 72.4 %Athens County72.4Portage County: 65.5 %Portage County65.5Franklin County: 65.4 %Franklin County65.4Wood County: 64.5 %Wood County64.5Madison County: 64.4 %Madison County64.4Greene County: 63 %Greene County63Ross County: 62.7 %Ross County62.7Union County: 62.7 %Union County62.7Hamilton County: 62.5 %Hamilton County62.5Marion County: 62.5 %Marion County62.5Noble County: 62.4 %Noble County62.4Butler County: 62.3 %Butler County62.3Pickaway County: 62.1 %Pickaway County62.1Lucas County: 62 %Lucas County62Cuyahoga County: 61.9 %Cuyahoga County61.9Summit County: 61.9 %Summit County61.9Hardin County: 61.5 %Hardin County61.5Clermont County: 61.3 %Clermont County61.3Belmont County: 61.3 %Belmont County61.3Hancock County: 61 %Hancock County61Scioto County: 60.9 %Scioto County60.9Lake County: 60.8 %Lake County60.8Montgomery County: 60.8 %Montgomery County60.8Clinton County: 60.8 %Clinton County60.8Vinton County: 60.7 %Vinton County60.7Licking County: 60.7 %Licking County60.7Seneca County: 60.6 %Seneca County60.6Warren County: 60.5 %Warren County60.5Medina County: 60.5 %Medina County60.5Lorain County: 60.5 %Lorain County60.5Fairfield County: 60.5 %Fairfield County60.5Washington County: 60.5 %Washington County60.5Jefferson County: 60.5 %Jefferson County60.5Columbiana County: 60.4 %Columbiana County60.4Perry County: 60.2 %Perry County60.2Mahoning County: 60.1 %Mahoning County60.1Delaware County: 60 %Delaware County60Stark County: 60 %Stark County60Allen County: 59.9 %Allen County59.9Knox County: 59.9 %Knox County59.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2015 (%)Change on 2014
1Athens County72.4+0.1 pts
2Portage County65.5-0.2 pts
3Franklin County65.4-0.1 pts
4Wood County64.5-0.5 pts
5Madison County64.4-0.1 pts
6Greene County63-0.6 pts
7Ross County62.7-0.3 pts
8Union County62.7-0 pts
9Hamilton County62.5-0.2 pts
10Marion County62.5-0.3 pts
11Noble County62.4+0.5 pts
12Butler County62.3-0.2 pts
13Pickaway County62.1-0.5 pts
14Lucas County62-0.4 pts
15Cuyahoga County61.9-0.1 pts
16Summit County61.9-0.2 pts
17Hardin County61.5-0.2 pts
18Clermont County61.3-0.2 pts
19Belmont County61.3-0.3 pts
20Hancock County61-0.2 pts
21Scioto County60.9-0.3 pts
22Lake County60.8-0.2 pts
23Montgomery County60.8-0.2 pts
24Clinton County60.8-0.1 pts
25Vinton County60.7-0.2 pts
26Licking County60.7-0.3 pts
27Seneca County60.6-0.5 pts
28Warren County60.5-0.2 pts
29Medina County60.5-0.3 pts
30Lorain County60.5-0.3 pts
31Fairfield County60.5-0.2 pts
32Washington County60.5-0.2 pts
33Jefferson County60.5-0.2 pts
34Columbiana County60.4-0.4 pts
35Perry County60.2-0.2 pts
36Mahoning County60.1-0.2 pts
37Delaware County60-0.3 pts
38Stark County60-0.3 pts
39Allen County59.9-0.5 pts
40Knox County59.9-0.4 pts
41Muskingum County59.8-0.1 pts
41Richland County59.8-0.3 pts
43Ashtabula County59.8-0.2 pts
44Lawrence County59.6-0.4 pts
45Huron County59.6-0.2 pts
46Meigs County59.6-0.4 pts
47Logan County59.60 pts
48Morrow County59.6-0.4 pts
49Trumbull County59.5-0.4 pts
50Jackson County59.5-0.4 pts
51Champaign County59.4-0.1 pts
52Hocking County59.4-0.1 pts
53Pike County59.3-0.3 pts
54Brown County59.3-0.4 pts
55Sandusky County59.3-0.3 pts
56Guernsey County59.2-0.2 pts
57Williams County59.2-0.3 pts
58Fulton County59.1-0.4 pts
58Gallia County59.1-0.2 pts
60Carroll County59.1-0.1 pts
61Shelby County59-0.3 pts
62Defiance County59-0.4 pts
63Miami County59-0.3 pts
64Wayne County58.9-0.3 pts
65Preble County58.9-0.4 pts
66Tuscarawas County58.8-0.4 pts
67Fayette County58.8-0.6 pts
68Ashland County58.8-0.3 pts
69Clark County58.8-0.4 pts
70Adams County58.7-0.2 pts
71Henry County58.7-0.3 pts
72Paulding County58.7-0.2 pts
73Erie County58.7-0.5 pts
74Putnam County58.6-0.3 pts
75Van Wert County58.50 pts
76Auglaize County58.4-0.4 pts
77Crawford County58.4-0.2 pts
78Wyandot County58.2-0.3 pts
79Coshocton County58.2-0.4 pts
80Highland County58.2-0.4 pts
81Harrison County58.1-0.6 pts
82Morgan County58-0.6 pts
83Mercer County57.9-0.3 pts
84Ottawa County57.8-0.7 pts
85Geauga County57.3-0.2 pts
86Monroe County56.9-0.5 pts
87Darke County56.8-0.2 pts
88Holmes County54.4+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, 2015) [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, 2015. 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=2015. 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, 2015. 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=2015.

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, 2015 [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=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2015,
  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, 2015}},
  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=2015. 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, 2015
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=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/ohio-counties?period=2015.
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 72.4% in 2015, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Holmes County, with 54.4% in 2015.

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