Ohio Citizen Population By County in 2012 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2012, the citizen population for Ohio was 11,302,595 and represented 98.00% of the total Ohio population.

Among all Ohio counties, Cuyahoga had the highest citizen population (1.24M), followed by Franklin (1.10M), and Hamilton (779.39K).

In terms of percentages, Lawrence had the highest percentage of its population being citizens (99.94%), followed by Coshocton (99.89%), and Vinton (99.89%).

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

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

You may also be interested in:
Ohio Citizen Voting-age Population By County in 2012

Data Source: US Census - ACS 5-Year (CVAP).

See this for other years:

Ohio Citizen Population By County in 2012

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County	Citizen Population	% of County Population
Cuyahoga	1240925	97.10
Franklin	1102205	94.41
Hamilton	779390	97.26
Summit	532185	98.23
Montgomery	524775	97.97
Lucas	434110	98.39
Stark	372575	99.20
Butler	357630	97.17
Lorain	297415	98.77
Mahoning	234665	98.45
Lake	224825	97.80
Trumbull	209135	99.62
Warren	207665	97.43
Clermont	195070	98.75
Medina	170260	98.80
Delaware	169960	97.42
Licking	164790	99.19
Portage	158675	98.45
Greene	158550	97.91
Fairfield	144655	98.98
Clark	136415	98.65
Wood	124000	98.21
Richland	123715	99.54
Wayne	113665	99.15
Columbiana	106795	99.25
Allen	105350	99.31
Miami	101665	99.04
Ashtabula	100315	99.07
Geauga	92495	98.94
Tuscarawas	91745	99.15
Muskingum	85540	99.47
Scioto	78555	99.29
Ross	77430	99.60
Erie	76435	99.33
Hancock	73720	98.23
Belmont	69920	99.63
Jefferson	69105	99.65
Marion	65955	99.16
Athens	62535	96.82
Lawrence	62405	99.94
Washington	61500	99.60
Knox	60445	99.43
Sandusky	59900	98.46
Huron	58200	97.60
Seneca	56095	99.06
Pickaway	55600	99.65
Ashland	52700	99.05
Darke	52585	99.64
Union	51375	98.50
Shelby	48900	99.07
Auglaize	45700	99.49
Logan	45580	99.49
Brown	44605	99.87
Crawford	43485	99.68
Highland	43330	99.71
Madison	42685	98.77
Holmes	42410	99.79
Fulton	42165	98.90
Clinton	42005	99.63
Preble	41960	99.34
Ottawa	41165	99.32
Mercer	40680	99.55
Guernsey	39930	99.69
Champaign	39745	99.41
Defiance	38655	99.18
Williams	37475	99.19
Coshocton	36840	99.89
Perry	35985	99.72
Morrow	34720	99.50
Putnam	34215	99.33
Jackson	33065	99.79
Hardin	31775	99.34
Gallia	30735	99.55
Hocking	29200	99.42
Carroll	28730	99.65
Van Wert	28645	99.43
Fayette	28640	99.00
Pike	28565	99.70
Adams	28460	99.77
Henry	27960	98.99
Meigs	23600	99.73
Wyandot	22485	99.38
Paulding	19400	99.39
Harrison	15800	99.87
Morgan	15020	99.87
Monroe	14660	99.86
Noble	14610	99.76
Vinton	13380	99.89