Data / Rankings / Population aged 65 and over / Counties in Ohio

Counties in Ohio by share of population aged 65 and over

Ottawa County had the highest share of population aged 65 and over of 88 counties in 2021, at 26.7%. Franklin County had the lowest, at 13.1%. The median was 19.6% and the figure for Ohio was 18.4%. Source: the U.S. Census Bureau.

Highest26.7Ottawa County
Lowest13.1Franklin County
Median19.688 counties
Ohio18.4History

Top 40 counties, 2021

CSVChart (SVG)

Ottawa CountyOttawa County: 26.7 %26.7Monroe CountyMonroe County: 25 %25Erie CountyErie County: 24.1 %24.1Harrison CountyHarrison County: 23.5 %23.5Geauga CountyGeauga County: 22.8 %22.8Morgan CountyMorgan County: 22.7 %22.7Mahoning CountyMahoning County: 22.6 %22.6Carroll CountyCarroll County: 22.6 %22.6Trumbull CountyTrumbull County: 22.6 %22.6Belmont CountyBelmont County: 22.5 %22.5Jefferson CountyJefferson County: 22.4 %22.4Washington CountyWashington County: 22.2 %22.2Crawford CountyCrawford County: 22.1 %22.1Columbiana CountyColumbiana County: 22.1 %22.1Lake CountyLake County: 21.7 %21.7Meigs CountyMeigs County: 21.6 %21.6Darke CountyDarke County: 21.2 %21.2Wyandot CountyWyandot County: 21.1 %21.1Guernsey CountyGuernsey County: 21.1 %21.1Ashtabula CountyAshtabula County: 20.9 %20.9Ashland CountyAshland County: 20.9 %20.9Preble CountyPreble County: 20.9 %20.9Sandusky CountySandusky County: 20.9 %20.9Williams CountyWilliams County: 20.7 %20.7Stark CountyStark County: 20.7 %20.7Clark CountyClark County: 20.5 %20.5Richland CountyRichland County: 20.5 %20.5Defiance CountyDefiance County: 20.5 %20.5Tuscarawas CountyTuscarawas County: 20.5 %20.5Henry CountyHenry County: 20.2 %20.2Fulton CountyFulton County: 20.2 %20.2Lawrence CountyLawrence County: 20.2 %20.2Gallia CountyGallia County: 20.1 %20.1Hocking CountyHocking County: 20.1 %20.1Lorain CountyLorain County: 20.1 %20.1Van Wert CountyVan Wert County: 20 %20Coshocton CountyCoshocton County: 20 %20Logan CountyLogan County: 20 %20Paulding CountyPaulding County: 19.9 %19.9Auglaize CountyAuglaize County: 19.9 %19.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021 (%)Change on 2020
1Ottawa County26.7+0.4 pts
2Monroe County25+0.2 pts
3Erie County24.1+0.4 pts
4Harrison County23.5+0.3 pts
5Geauga County22.8+0.4 pts
6Morgan County22.7+0.2 pts
7Mahoning County22.6+0.4 pts
8Carroll County22.6+0.4 pts
9Trumbull County22.6+0.2 pts
10Belmont County22.5+0.3 pts
11Jefferson County22.4+0.2 pts
12Washington County22.2+0.5 pts
13Crawford County22.1+0.1 pts
14Columbiana County22.1+0.4 pts
15Lake County21.7+0.5 pts
16Meigs County21.6+0.2 pts
17Darke County21.2+0.3 pts
18Wyandot County21.1+0.4 pts
19Guernsey County21.1+0.3 pts
20Ashtabula County20.9+0.4 pts
21Ashland County20.9+0.4 pts
22Preble County20.9+0.3 pts
23Sandusky County20.9+0.5 pts
24Williams County20.7+0.5 pts
25Stark County20.7+0.3 pts
26Clark County20.5+0.1 pts
27Richland County20.5+0.2 pts
28Defiance County20.5+0.3 pts
29Tuscarawas County20.5+0.3 pts
30Henry County20.2+0.4 pts
31Fulton County20.2+0.5 pts
32Lawrence County20.2+0.2 pts
33Gallia County20.1+0.5 pts
34Hocking County20.1+0.4 pts
35Lorain County20.1+0.5 pts
36Van Wert County20+0.5 pts
37Coshocton County20+0.2 pts
38Logan County20+0.4 pts
39Paulding County19.9+0.2 pts
40Auglaize County19.9+0.3 pts
41Champaign County19.8+0.4 pts
42Miami County19.7+0.3 pts
43Knox County19.6+0.5 pts
44Brown County19.6+0.4 pts
45Summit County19.6+0.5 pts
46Medina County19.6+0.4 pts
47Seneca County19.6+0.3 pts
48Fayette County19.5+0.2 pts
49Vinton County19.5+0.5 pts
50Cuyahoga County19.4+0.5 pts
51Allen County19.3+0.3 pts
52Highland County19.3+0.3 pts
53Adams County19.3+0.2 pts
54Morrow County19.2+0.4 pts
55Scioto County19.2+0.3 pts
56Wayne County19.2+0.5 pts
57Muskingum County19.2+0.3 pts
58Mercer County19.2+0.5 pts
59Hancock County19+0.3 pts
60Portage County19+0.9 pts
61Huron County18.9+0.4 pts
62Marion County18.9+0.4 pts
63Montgomery County18.8+0.2 pts
64Putnam County18.7+0.4 pts
65Jackson County18.7+0.2 pts
66Clinton County18.6+0.4 pts
67Pike County18.5+0.3 pts
68Greene County18.4+0.4 pts
69Perry County18.4+0.5 pts
70Ross County18.3+0.4 pts
71Clermont County18.2+0.5 pts
72Licking County18+0.4 pts
73Shelby County17.8+0.3 pts
74Lucas County17.7+0.4 pts
75Wood County17.5+0.7 pts
76Noble County17.4+0.2 pts
77Hardin County17.3+0.2 pts
78Pickaway County17.1+0.2 pts
79Fairfield County17+0.1 pts
80Madison County16.8+0.3 pts
81Hamilton County16.6+0.4 pts
82Butler County16+0.5 pts
83Warren County15.9+0.3 pts
84Athens County15.7+1.1 pts
85Delaware County14.9+0.3 pts
86Holmes County14.6+0.2 pts
87Union County13.4+0.3 pts
88Franklin County13.1+0.4 pts

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

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 share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"Ohio","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_65_plus_share&level=province&within=Ohio&limit=10

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Questions

Which county has the highest share of population aged 65 and over?

Ottawa County, with 26.7% in 2021, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Franklin County, with 13.1% in 2021.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

Counties in Ohio: more rankings