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 2018, at 70.7%. Holmes County had the lowest, at 54.9%. The median was 58.8% and the figure for Ohio was 60.7%. Source: the U.S. Census Bureau.

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Highest70.7Athens County
Lowest54.9Holmes County
Median58.888 counties
Ohio60.7History

Map of counties, 2018

Adams County: 57.9 %Allen County: 58.7 %Ashland County: 58 %Ashtabula County: 58.7 %Athens County: 70.7 %Auglaize County: 57.4 %Belmont County: 59.8 %Brown County: 58.9 %Butler County: 61.7 %Carroll County: 57.7 %Champaign County: 58.6 %Clark County: 57.9 %Clermont County: 60.3 %Clinton County: 60.1 %Columbiana County: 59.2 %Coshocton County: 56.9 %Crawford County: 57.7 %Cuyahoga County: 61.4 %Darke County: 56.2 %Defiance County: 57.7 %Delaware County: 59.2 %Erie County: 57.5 %Fairfield County: 59.5 %Fayette County: 58.2 %Franklin County: 64.9 %Fulton County: 58.2 %Gallia County: 57.8 %Geauga County: 56.2 %Greene County: 61.7 %Guernsey County: 58.4 %Hamilton County: 62 %Hancock County: 60.1 %Hardin County: 60.3 %Harrison County: 56.6 %Henry County: 57.8 %Highland County: 57.6 %Hocking County: 58.9 %Holmes County: 54.9 %Huron County: 58.8 %Jackson County: 58.7 %Jefferson County: 59.4 %Knox County: 58.9 %Lake County: 60 %Lawrence County: 58.8 %Licking County: 60.1 %Logan County: 58.8 %Lorain County: 59.5 %Lucas County: 61 %Madison County: 63.3 %Mahoning County: 58.9 %Marion County: 61.4 %Medina County: 59.6 %Meigs County: 58.4 %Mercer County: 57 %Miami County: 58.1 %Monroe County: 55.7 %Montgomery County: 60.2 %Morgan County: 57.5 %Morrow County: 59 %Muskingum County: 59.2 %Noble County: 63.4 %Ottawa County: 56.3 %Paulding County: 57.3 %Perry County: 59.4 %Pickaway County: 61.5 %Pike County: 58.5 %Portage County: 64.4 %Preble County: 57.6 %Putnam County: 57.2 %Richland County: 58.9 %Ross County: 62 %Sandusky County: 58.4 %Scioto County: 60.4 %Seneca County: 59.7 %Shelby County: 58.4 %Stark County: 59.1 %Summit County: 61 %Trumbull County: 58.3 %Tuscarawas County: 57.8 %Union County: 62.1 %Van Wert County: 57.7 %Vinton County: 59.5 %Warren County: 60.1 %Washington County: 59.5 %Wayne County: 58 %Williams County: 58.4 %Wood County: 63.4 %Wyandot County: 57.6 %
  • Under 58
  • 58 to 59
  • 59 to 61
  • 61 and over
%, 2018. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Athens County: 70.7 %Athens County70.7Franklin County: 64.9 %Franklin County64.9Portage County: 64.4 %Portage County64.4Wood County: 63.4 %Wood County63.4Noble County: 63.4 %Noble County63.4Madison County: 63.3 %Madison County63.3Union County: 62.1 %Union County62.1Hamilton County: 62 %Hamilton County62Ross County: 62 %Ross County62Greene County: 61.7 %Greene County61.7Butler County: 61.7 %Butler County61.7Pickaway County: 61.5 %Pickaway County61.5Cuyahoga County: 61.4 %Cuyahoga County61.4Marion County: 61.4 %Marion County61.4Summit County: 61 %Summit County61Lucas County: 61 %Lucas County61Scioto County: 60.4 %Scioto County60.4Hardin County: 60.3 %Hardin County60.3Clermont County: 60.3 %Clermont County60.3Montgomery County: 60.2 %Montgomery County60.2Clinton County: 60.1 %Clinton County60.1Licking County: 60.1 %Licking County60.1Warren County: 60.1 %Warren County60.1Hancock County: 60.1 %Hancock County60.1Lake County: 60 %Lake County60Belmont County: 59.8 %Belmont County59.8Seneca County: 59.7 %Seneca County59.7Medina County: 59.6 %Medina County59.6Vinton County: 59.5 %Vinton County59.5Fairfield County: 59.5 %Fairfield County59.5Lorain County: 59.5 %Lorain County59.5Washington County: 59.5 %Washington County59.5Jefferson County: 59.4 %Jefferson County59.4Perry County: 59.4 %Perry County59.4Muskingum County: 59.2 %Muskingum County59.2Delaware County: 59.2 %Delaware County59.2Columbiana County: 59.2 %Columbiana County59.2Stark County: 59.1 %Stark County59.1Morrow County: 59 %Morrow County59Mahoning County: 58.9 %Mahoning County58.9Athens County: 70.7 %Athens County70.7Franklin County: 64.9 %Franklin County64.9Portage County: 64.4 %Portage County64.4Wood County: 63.4 %Wood County63.4Noble County: 63.4 %Noble County63.4Madison County: 63.3 %Madison County63.3Union County: 62.1 %Union County62.1Hamilton County: 62 %Hamilton County62Ross County: 62 %Ross County62Greene County: 61.7 %Greene County61.7Butler County: 61.7 %Butler County61.7Pickaway County: 61.5 %Pickaway County61.5Cuyahoga County: 61.4 %Cuyahoga County61.4Marion County: 61.4 %Marion County61.4Summit County: 61 %Summit County61Lucas County: 61 %Lucas County61Scioto County: 60.4 %Scioto County60.4Hardin County: 60.3 %Hardin County60.3Clermont County: 60.3 %Clermont County60.3Montgomery County: 60.2 %Montgomery County60.2Clinton County: 60.1 %Clinton County60.1Licking County: 60.1 %Licking County60.1Warren County: 60.1 %Warren County60.1Hancock County: 60.1 %Hancock County60.1Lake County: 60 %Lake County60Belmont County: 59.8 %Belmont County59.8Seneca County: 59.7 %Seneca County59.7Medina County: 59.6 %Medina County59.6Vinton County: 59.5 %Vinton County59.5Fairfield County: 59.5 %Fairfield County59.5Lorain County: 59.5 %Lorain County59.5Washington County: 59.5 %Washington County59.5Jefferson County: 59.4 %Jefferson County59.4Perry County: 59.4 %Perry County59.4Muskingum County: 59.2 %Muskingum County59.2Delaware County: 59.2 %Delaware County59.2Columbiana County: 59.2 %Columbiana County59.2Stark County: 59.1 %Stark County59.1Morrow County: 59 %Morrow County59Mahoning County: 58.9 %Mahoning County58.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Athens County70.7-1 pts
2Franklin County64.9-0.2 pts
3Portage County64.4-0.4 pts
4Wood County63.4-0.5 pts
5Noble County63.4+0.3 pts
6Madison County63.3-0.3 pts
7Union County62.1-0.3 pts
8Hamilton County62-0.2 pts
9Ross County62-0.4 pts
10Greene County61.7-0.6 pts
11Butler County61.7-0.2 pts
12Pickaway County61.5-0.3 pts
13Cuyahoga County61.4-0.2 pts
14Marion County61.4-0.5 pts
15Summit County61-0.3 pts
16Lucas County61-0.2 pts
17Scioto County60.4-0.2 pts
18Hardin County60.3-0.5 pts
19Clermont County60.3-0.3 pts
20Montgomery County60.2-0.1 pts
21Clinton County60.1-0.1 pts
22Licking County60.1-0.2 pts
23Warren County60.1-0 pts
24Hancock County60.1-0.4 pts
25Lake County60-0.3 pts
26Belmont County59.8-0.4 pts
27Seneca County59.7-0.3 pts
28Medina County59.6-0.3 pts
29Vinton County59.5-0.3 pts
30Fairfield County59.5-0.4 pts
31Lorain County59.5-0.3 pts
32Washington County59.5-0.4 pts
33Jefferson County59.4-0.3 pts
34Perry County59.4-0.3 pts
35Muskingum County59.2-0.2 pts
36Delaware County59.2-0.1 pts
37Columbiana County59.2-0.3 pts
38Stark County59.1-0.3 pts
39Morrow County59-0 pts
40Mahoning County58.9-0.4 pts
41Hocking County58.9-0.2 pts
42Richland County58.9-0.1 pts
43Knox County58.9-0.3 pts
44Brown County58.9-0.1 pts
45Logan County58.8-0.4 pts
46Lawrence County58.8-0.2 pts
47Huron County58.8-0.2 pts
48Ashtabula County58.7-0.4 pts
49Jackson County58.7-0.2 pts
50Allen County58.7-0.4 pts
51Champaign County58.6-0.2 pts
52Pike County58.5-0.2 pts
53Williams County58.4-0.1 pts
54Shelby County58.4-0.1 pts
55Sandusky County58.4-0.3 pts
56Meigs County58.4-0.3 pts
57Guernsey County58.4-0.1 pts
58Trumbull County58.3-0.5 pts
59Fayette County58.2-0.1 pts
60Fulton County58.2-0.2 pts
61Miami County58.1-0.3 pts
62Ashland County58-0.3 pts
63Wayne County58-0.3 pts
64Adams County57.9-0.3 pts
65Clark County57.9-0.2 pts
66Tuscarawas County57.8-0.3 pts
67Henry County57.8-0.5 pts
68Gallia County57.8-0.4 pts
69Defiance County57.7-0.5 pts
70Van Wert County57.7-0.2 pts
71Crawford County57.7-0.2 pts
72Carroll County57.7-0.5 pts
73Preble County57.6-0.3 pts
74Wyandot County57.6-0.5 pts
75Highland County57.6-0.3 pts
76Erie County57.5-0.3 pts
77Morgan County57.5-0.5 pts
78Auglaize County57.4-0.3 pts
79Paulding County57.3-0.3 pts
80Putnam County57.2-0.5 pts
81Mercer County57-0.5 pts
82Coshocton County56.9-0.5 pts
83Harrison County56.6-0.5 pts
84Ottawa County56.3-0.5 pts
85Darke County56.2-0.2 pts
86Geauga County56.2-0.4 pts
87Monroe County55.7-0.5 pts
88Holmes County54.9+0.2 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, 2018) [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, 2018. 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=2018. 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, 2018. 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=2018.

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, 2018 [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=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_ohio_by_2018,
  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, 2018}},
  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=2018. 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, 2018
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=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/ohio-counties?period=2018.
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 70.7% in 2018, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Holmes County, with 54.9% in 2018.

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