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

Counties in Ohio by share of population aged 65 and over, 2025

Ottawa County had the highest share of population aged 65 and over of 88 counties in 2025, at 29.8%. Franklin County had the lowest, at 14.5%. The median was 21.5% and the figure for Ohio was 20.2%. Source: the U.S. Census Bureau.

Highest29.8Ottawa County
Lowest14.5Franklin County
Median21.588 counties
Ohio20.2History

Top 40 counties, 2025

CSVChart (SVG)

Ottawa CountyOttawa County: 29.8 %29.8Erie CountyErie County: 26.8 %26.8Monroe CountyMonroe County: 26.8 %26.8Harrison CountyHarrison County: 25.5 %25.5Geauga CountyGeauga County: 25.5 %25.5Belmont CountyBelmont County: 24.9 %24.9Carroll CountyCarroll County: 24.7 %24.7Columbiana CountyColumbiana County: 24.6 %24.6Lake CountyLake County: 24.5 %24.5Mahoning CountyMahoning County: 24.4 %24.4Washington CountyWashington County: 24.4 %24.4Morgan CountyMorgan County: 24.3 %24.3Trumbull CountyTrumbull County: 24.3 %24.3Jefferson CountyJefferson County: 23.9 %23.9Crawford CountyCrawford County: 23.6 %23.6Meigs CountyMeigs County: 23.4 %23.4Preble CountyPreble County: 23.2 %23.2Wyandot CountyWyandot County: 23.2 %23.2Sandusky CountySandusky County: 23.2 %23.2Darke CountyDarke County: 23.1 %23.1Williams CountyWilliams County: 22.8 %22.8Ashtabula CountyAshtabula County: 22.7 %22.7Ashland CountyAshland County: 22.6 %22.6Hocking CountyHocking County: 22.5 %22.5Stark CountyStark County: 22.4 %22.4Medina CountyMedina County: 22.3 %22.3Fulton CountyFulton County: 22.3 %22.3Lorain CountyLorain County: 22.3 %22.3Richland CountyRichland County: 22.2 %22.2Auglaize CountyAuglaize County: 22.2 %22.2Defiance CountyDefiance County: 22.2 %22.2Tuscarawas CountyTuscarawas County: 22.2 %22.2Guernsey CountyGuernsey County: 22.1 %22.1Logan CountyLogan County: 22.1 %22.1Henry CountyHenry County: 22 %22Paulding CountyPaulding County: 21.8 %21.8Clark CountyClark County: 21.8 %21.8Van Wert CountyVan Wert County: 21.8 %21.8Coshocton CountyCoshocton County: 21.7 %21.7Gallia CountyGallia County: 21.6 %21.6
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2025 (%)Change on 2024
1Ottawa County29.8+0.8 pts
2Erie County26.8+0.7 pts
3Monroe County26.8+0.3 pts
4Harrison County25.5+0.3 pts
5Geauga County25.5+0.6 pts
6Belmont County24.9+0.6 pts
7Carroll County24.7+0.6 pts
8Columbiana County24.6+0.6 pts
9Lake County24.5+0.7 pts
10Mahoning County24.4+0.3 pts
11Washington County24.4+0.5 pts
12Morgan County24.3+0.5 pts
13Trumbull County24.3+0.4 pts
14Jefferson County23.9+0.4 pts
15Crawford County23.6+0.3 pts
16Meigs County23.4+0.3 pts
17Preble County23.2+0.6 pts
17Wyandot County23.2+0.6 pts
19Sandusky County23.2+0.5 pts
20Darke County23.1+0.5 pts
21Williams County22.8+0.6 pts
22Ashtabula County22.7+0.4 pts
23Ashland County22.6+0.4 pts
24Hocking County22.5+0.5 pts
25Stark County22.4+0.4 pts
26Medina County22.3+0.6 pts
27Fulton County22.3+0.6 pts
28Lorain County22.3+0.5 pts
29Richland County22.2+0.5 pts
30Auglaize County22.2+0.6 pts
31Defiance County22.2+0.4 pts
32Tuscarawas County22.2+0.4 pts
33Guernsey County22.1+0.3 pts
34Logan County22.1+0.5 pts
35Henry County22+0.4 pts
36Paulding County21.8+0.6 pts
37Clark County21.8+0.4 pts
38Van Wert County21.8+0.5 pts
39Coshocton County21.7+0.4 pts
40Gallia County21.6+0.2 pts
41Lawrence County21.6+0.4 pts
42Summit County21.6+0.4 pts
43Cuyahoga County21.5+0.5 pts
44Seneca County21.5+0.5 pts
45Knox County21.5+0.4 pts
46Champaign County21.4+0.4 pts
47Miami County21.3+0.3 pts
48Brown County21.2+0.4 pts
49Putnam County21.2+0.5 pts
50Morrow County21.1+0.4 pts
51Fayette County21.1+0.4 pts
52Mercer County21+0.4 pts
53Huron County21+0.5 pts
54Vinton County20.9+0.4 pts
55Wayne County20.9+0.5 pts
56Allen County20.9+0.4 pts
57Portage County20.9+0.6 pts
58Clinton County20.8+0.3 pts
59Hancock County20.8+0.5 pts
60Highland County20.7+0.3 pts
61Muskingum County20.7+0.2 pts
62Scioto County20.6+0.2 pts
63Adams County20.5+0.3 pts
64Pike County20.4+0.5 pts
65Clermont County20.3+0.4 pts
66Marion County20.3+0.3 pts
67Montgomery County20.2+0.3 pts
68Perry County20.1+0.3 pts
69Greene County19.9+0.3 pts
70Lucas County19.9+0.5 pts
71Ross County19.8+0.3 pts
72Licking County19.7+0.4 pts
73Jackson County19.7+0.3 pts
74Shelby County19.7+0.4 pts
75Noble County19.2+0.3 pts
76Wood County19+0.3 pts
77Madison County18.5+0.2 pts
78Hardin County18.4+0.2 pts
79Fairfield County18.2+0.3 pts
80Hamilton County18.1+0.4 pts
81Warren County17.9+0.5 pts
82Pickaway County17.8+0.2 pts
83Butler County17.5+0.4 pts
84Delaware County16.8+0.4 pts
85Athens County15.8+0.3 pts
86Holmes County15.6+0.3 pts
87Union County14.7+0.5 pts
88Franklin County14.5+0.3 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 29.8% in 2025, according to the U.S. Census Bureau.

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

Franklin County, with 14.5% 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 (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