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 2024, at 29%. Franklin County had the lowest, at 14.1%. The median was 21% and the figure for Ohio was 19.7%. Source: the U.S. Census Bureau.

Highest29Ottawa County
Lowest14.1Franklin County
Median2188 counties
Ohio19.7History

Top 40 counties, 2024

CSVChart (SVG)

Ottawa CountyOttawa County: 29 %29Monroe CountyMonroe County: 26.4 %26.4Erie CountyErie County: 26.1 %26.1Harrison CountyHarrison County: 25.2 %25.2Geauga CountyGeauga County: 24.9 %24.9Belmont CountyBelmont County: 24.3 %24.3Carroll CountyCarroll County: 24.1 %24.1Mahoning CountyMahoning County: 24.1 %24.1Columbiana CountyColumbiana County: 24 %24Washington CountyWashington County: 23.9 %23.9Trumbull CountyTrumbull County: 23.8 %23.8Lake CountyLake County: 23.8 %23.8Morgan CountyMorgan County: 23.7 %23.7Jefferson CountyJefferson County: 23.6 %23.6Crawford CountyCrawford County: 23.3 %23.3Meigs CountyMeigs County: 23.1 %23.1Sandusky CountySandusky County: 22.6 %22.6Wyandot CountyWyandot County: 22.6 %22.6Preble CountyPreble County: 22.6 %22.6Darke CountyDarke County: 22.6 %22.6Ashtabula CountyAshtabula County: 22.3 %22.3Williams CountyWilliams County: 22.2 %22.2Ashland CountyAshland County: 22.1 %22.1Hocking CountyHocking County: 22 %22Stark CountyStark County: 22 %22Guernsey CountyGuernsey County: 21.8 %21.8Defiance CountyDefiance County: 21.8 %21.8Richland CountyRichland County: 21.7 %21.7Fulton CountyFulton County: 21.7 %21.7Lorain CountyLorain County: 21.7 %21.7Tuscarawas CountyTuscarawas County: 21.7 %21.7Medina CountyMedina County: 21.7 %21.7Auglaize CountyAuglaize County: 21.6 %21.6Henry CountyHenry County: 21.6 %21.6Logan CountyLogan County: 21.6 %21.6Gallia CountyGallia County: 21.4 %21.4Clark CountyClark County: 21.4 %21.4Van Wert CountyVan Wert County: 21.3 %21.3Coshocton CountyCoshocton County: 21.3 %21.3Lawrence CountyLawrence County: 21.3 %21.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2024 (%)Change on 2023
1Ottawa County29+0.6 pts
2Monroe County26.4+0.5 pts
3Erie County26.1+0.7 pts
4Harrison County25.2+0.5 pts
5Geauga County24.9+0.7 pts
6Belmont County24.3+0.6 pts
7Carroll County24.1+0.7 pts
8Mahoning County24.1+0.4 pts
9Columbiana County24+0.7 pts
10Washington County23.9+0.6 pts
11Trumbull County23.8+0.4 pts
12Lake County23.8+0.6 pts
13Morgan County23.7+0.7 pts
14Jefferson County23.6+0.3 pts
15Crawford County23.3+0.5 pts
16Meigs County23.1+0.8 pts
17Sandusky County22.6+0.6 pts
18Wyandot County22.6+0.6 pts
19Preble County22.6+0.5 pts
20Darke County22.6+0.4 pts
21Ashtabula County22.3+0.4 pts
22Williams County22.2+0.5 pts
23Ashland County22.1+0.3 pts
24Hocking County22+0.7 pts
25Stark County22+0.4 pts
26Guernsey County21.8+0.4 pts
27Defiance County21.8+0.5 pts
28Richland County21.7+0.5 pts
29Fulton County21.7+0.5 pts
29Lorain County21.7+0.5 pts
31Tuscarawas County21.7+0.4 pts
32Medina County21.7+0.7 pts
33Auglaize County21.6+0.7 pts
34Henry County21.6+0.4 pts
35Logan County21.6+0.7 pts
36Gallia County21.4+0.4 pts
37Clark County21.4+0.2 pts
38Van Wert County21.3+0.5 pts
39Coshocton County21.3+0.4 pts
40Lawrence County21.3+0.4 pts
41Paulding County21.2+0.4 pts
42Summit County21.1+0.5 pts
43Cuyahoga County21+0.5 pts
44Knox County21+0.5 pts
45Seneca County21+0.5 pts
46Champaign County21+0.4 pts
47Miami County20.9+0.4 pts
48Brown County20.9+0.3 pts
49Putnam County20.7+0.8 pts
50Morrow County20.7+0.4 pts
51Fayette County20.6+0.4 pts
52Mercer County20.6+0.5 pts
53Vinton County20.6+0.4 pts
54Clinton County20.5+0.7 pts
55Allen County20.5+0.4 pts
56Wayne County20.5+0.4 pts
57Huron County20.5+0.6 pts
58Muskingum County20.4+0.4 pts
59Highland County20.4+0.4 pts
60Scioto County20.4+0.3 pts
61Portage County20.3+0.6 pts
62Adams County20.3+0.6 pts
63Hancock County20.2+0.5 pts
64Marion County20+0.2 pts
65Clermont County19.9+0.5 pts
66Pike County19.9+0.5 pts
67Montgomery County19.8+0.4 pts
68Perry County19.7+0.3 pts
69Greene County19.6+0.3 pts
70Ross County19.5+0.5 pts
71Jackson County19.4+0.3 pts
72Lucas County19.4+0.5 pts
73Licking County19.3+0.5 pts
74Shelby County19.3+0.4 pts
75Noble County18.9+0.5 pts
76Wood County18.7+0.5 pts
77Madison County18.2+0.2 pts
78Hardin County18.2+0.3 pts
79Fairfield County17.9+0.3 pts
80Hamilton County17.6+0.3 pts
81Pickaway County17.6+0.2 pts
82Warren County17.4+0.5 pts
83Butler County17.1+0.4 pts
84Delaware County16.4+0.5 pts
85Athens County15.6+0.2 pts
86Holmes County15.3+0.3 pts
87Union County14.2+0.3 pts
88Franklin County14.1+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% in 2024, according to the U.S. Census Bureau.

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

Franklin County, with 14.1% in 2024.

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