Population
|
County
|
1,316,756
|
Franklin
|
1,235,072
|
Cuyahoga
|
817,473
|
Hamilton
|
541,013
|
Summit
|
531,687
|
Montgomery
|
428,348
|
Lucas
|
383,134
|
Butler
|
370,606
|
Stark
|
309,833
|
Lorain
|
234,602
|
Warren
|
230,149
|
Lake
|
228,683
|
Mahoning
|
209,177
|
Delaware
|
206,428
|
Clermont
|
197,974
|
Trumbull
|
179,746
|
Medina
|
176,862
|
Licking
|
168,937
|
Greene
|
162,466
|
Portage
|
157,574
|
Fairfield
|
134,083
|
Clark
|
130,817
|
Wood
|
121,154
|
Richland
|
115,710
|
Wayne
|
106,987
|
Miami
|
102,351
|
Allen
|
101,883
|
Columbiana
|
97,241
|
Ashtabula
|
93,649
|
Geauga
|
91,987
|
Tuscarawas
|
|
Population
|
County
|
86,215
|
Muskingum
|
76,666
|
Ross
|
75,783
|
Hancock
|
75,314
|
Scioto
|
74,266
|
Erie
|
67,006
|
Belmont
|
65,327
|
Athens
|
65,325
|
Jefferson
|
65,093
|
Marion
|
62,322
|
Knox
|
59,911
|
Washington
|
59,463
|
Lawrence
|
58,988
|
Union
|
58,518
|
Sandusky
|
58,457
|
Pickaway
|
58,266
|
Huron
|
55,178
|
Seneca
|
53,484
|
Ashland
|
51,113
|
Darke
|
48,590
|
Shelby
|
45,672
|
Logan
|
45,656
|
Auglaize
|
44,731
|
Madison
|
43,901
|
Holmes
|
43,432
|
Brown
|
43,016
|
Highland
|
42,126
|
Fulton
|
41,968
|
Clinton
|
41,494
|
Crawford
|
|
Population
|
County
|
41,172
|
Mercer
|
41,093
|
Preble
|
40,525
|
Ottawa
|
38,885
|
Champaign
|
38,875
|
Guernsey
|
38,087
|
Defiance
|
36,816
|
Williams
|
36,600
|
Coshocton
|
36,134
|
Perry
|
35,328
|
Morrow
|
33,911
|
Putnam
|
32,413
|
Jackson
|
31,425
|
Hardin
|
29,898
|
Gallia
|
28,525
|
Fayette
|
28,275
|
Van Wert
|
28,264
|
Hocking
|
28,000
|
Pike
|
27,776
|
Adams
|
27,208
|
Henry
|
26,914
|
Carroll
|
23,078
|
Meigs
|
22,000
|
Wyandot
|
18,809
|
Paulding
|
15,211
|
Harrison
|
14,640
|
Morgan
|
14,416
|
Noble
|
13,942
|
Monroe
|
13,083
|
Vinton
|
|