Ohio Citizen Voting-age Population By County in 2023 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2023, the citizen voting-age population for Ohio was 8,925,465 and represented 75.77% of the total Ohio population.

Among all Ohio counties, Cuyahoga had the highest citizen voting-age population (960.33K), followed by Franklin (938.82K), and Hamilton (611.98K).

In terms of percentages, Athens had the highest percentage of its population being citizens of voting-age (82.72%), followed by Ottawa (82.03%), and Noble (81.37%).

The chart and table below shows the citizen voting-age population of each county and the percentage of each county's population that were citizens of voting-age.

You can see similar information for other states and by state for the United States.

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Ohio Citizen Voting-age Population By County in 2023
Ohio Citizen Voting-age Population By County in 2023
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County Citizen Voting-age Population % of County Population
Cuyahoga 960330 76.86
Franklin 938820 71.04
Hamilton 611975 73.92
Summit 414600 77.05
Montgomery 404835 75.60
Lucas 324845 75.77
Stark 289725 77.52
Butler 282645 72.49
Lorain 242645 77.13
Lake 182655 78.70
Mahoning 178775 78.73
Warren 178280 72.36
Clermont 161020 76.73
Trumbull 159195 79.06
Delaware 156895 70.94
Medina 141665 77.39
Licking 137010 75.99
Greene 130845 77.64
Portage 129060 79.95
Fairfield 120425 74.66
Wood 103180 78.29
Clark 103140 76.15
Richland 97140 77.63
Wayne 86990 74.59
Miami 83215 75.96
Columbiana 80275 79.32
Allen 76975 75.70
Ashtabula 75390 77.45
Geauga 73495 76.97
Tuscarawas 69885 75.48
Muskingum 66395 76.86
Ross 60155 78.38
Erie 59485 79.38
Hancock 57005 76.12
Scioto 56940 77.87
Belmont 53370 80.89
Jefferson 51995 80.17
Athens 50935 82.72
Marion 50895 78.13
Union 47995 73.51
Knox 47875 76.13
Washington 47190 79.55
Pickaway 46575 78.40
Sandusky 45475 77.38
Lawrence 44740 77.97
Huron 43940 75.23
Seneca 42630 77.71
Ashland 40175 76.82
Darke 39115 75.72
Shelby 35925 74.84
Logan 35125 76.13
Auglaize 35090 75.94
Madison 34780 78.82
Brown 33600 76.87
Ottawa 32945 82.03
Highland 32840 75.66
Crawford 32345 77.44
Fulton 32285 76.08
Clinton 31815 75.72
Preble 31595 77.44
Mercer 30955 72.94
Holmes 30755 69.41
Champaign 30055 77.52
Guernsey 29740 77.68
Defiance 29230 76.40
Williams 28350 76.91
Coshocton 27740 75.63
Morrow 27365 77.71
Perry 26960 76.00
Putnam 25365 73.84
Jackson 24795 76.08
Hardin 23215 76.05
Gallia 22205 76.15
Van Wert 21990 76.29
Hocking 21855 78.22
Fayette 21825 75.57
Carroll 21190 79.27
Henry 20915 75.83
Adams 20785 75.55
Pike 20580 76.00
Meigs 17370 78.70
Wyandot 16680 76.87
Paulding 14175 75.40
Noble 11595 81.37
Harrison 11345 78.73
Morgan 10810 78.56
Monroe 10535 79.15
Vinton 9925 78.24