Ohio
88 counties · Pop: 11,799,448
State Offices
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Counties in Ohio
Adams
County Seat: West Union
Pop: 27,821
Allen
County Seat: Lima
Pop: 102,206
Ashland
County Seat: Ashland
Pop: 52,447
Ashtabula
County Seat: Jefferson
Pop: 97,241
Athens
County Seat: Athens
Pop: 65,327
Auglaize
County Seat: Wapakoneta
Pop: 45,656
Belmont
County Seat: St. Clairsville
Pop: 67,006
Brown
County Seat: Georgetown
Pop: 43,432
Butler
County Seat: Hamilton
Pop: 390,357
Carroll
County Seat: Carrollton
Pop: 26,914
Champaign
County Seat: Urbana
Pop: 38,714
Clark
County Seat: Springfield
Pop: 136,001
Clermont
County Seat: Batavia
Pop: 208,601
Clinton
County Seat: Wilmington
Pop: 42,018
Columbiana
County Seat: Lisbon
Pop: 102,514
Coshocton
County Seat: Coshocton
Pop: 36,600
Crawford
County Seat: Bucyrus
Pop: 41,494
Cuyahoga
County Seat: Cleveland
Pop: 1,264,817
Darke
County Seat: Greenville
Pop: 51,113
Defiance
County Seat: Defiance
Pop: 38,286
Delaware
County Seat: Delaware
Pop: 214,124
Erie
County Seat: Sandusky
Pop: 74,266
Fairfield
County Seat: Lancaster
Pop: 158,921
Fayette
County Seat: Washington Court House
Pop: 28,777
Franklin
County Seat: Columbus
Pop: 1,323,807
Fulton
County Seat: Wauseon
Pop: 42,713
Gallia
County Seat: Gallipolis
Pop: 29,220
Geauga
County Seat: Chardon
Pop: 95,397
Greene
County Seat: Xenia
Pop: 168,937
Guernsey
County Seat: Cambridge
Pop: 38,875
Hamilton
County Seat: Cincinnati
Pop: 830,639
Hancock
County Seat: Findlay
Pop: 75,783
Hardin
County Seat: Kenton
Pop: 31,365
Harrison
County Seat: Cadiz
Pop: 14,490
Henry
County Seat: Napoleon
Pop: 27,006
Highland
County Seat: Hillsboro
Pop: 43,161
Hocking
County Seat: Logan
Pop: 28,264
Holmes
County Seat: Millersburg
Pop: 44,211
Huron
County Seat: Norwalk
Pop: 58,266
Jackson
County Seat: Jackson
Pop: 32,653
Jefferson
County Seat: Steubenville
Pop: 65,943
Knox
County Seat: Mount Vernon
Pop: 62,721
Lake
County Seat: Painesville
Pop: 232,603
Lawrence
County Seat: Ironton
Pop: 59,463
Licking
County Seat: Newark
Pop: 178,519
Logan
County Seat: Bellefontaine
Pop: 45,325
Lorain
County Seat: Elyria
Pop: 312,964
Lucas
County Seat: Toledo
Pop: 431,279
Madison
County Seat: London
Pop: 44,731
Mahoning
County Seat: Youngstown
Pop: 228,683
Marion
County Seat: Marion
Pop: 65,093
Medina
County Seat: Medina
Pop: 183,127
Meigs
County Seat: Pomeroy
Pop: 22,907
Mercer
County Seat: Celina
Pop: 41,172
Miami
County Seat: Troy
Pop: 108,774
Monroe
County Seat: Woodsfield
Pop: 13,385
Montgomery
County Seat: Dayton
Pop: 537,309
Morgan
County Seat: McConnelsville
Pop: 14,508
Morrow
County Seat: Mount Gilead
Pop: 35,328
Muskingum
County Seat: Zanesville
Pop: 86,410
Noble
County Seat: Caldwell
Pop: 14,424
Ottawa
County Seat: Port Clinton
Pop: 40,525
Paulding
County Seat: Paulding
Pop: 18,672
Perry
County Seat: New Lexington
Pop: 36,134
Pickaway
County Seat: Circleville
Pop: 58,539
Pike
County Seat: Waverly
Pop: 28,325
Portage
County Seat: Ravenna
Pop: 162,644
Preble
County Seat: Eaton
Pop: 40,882
Putnam
County Seat: Ottawa
Pop: 33,861
Richland
County Seat: Mansfield
Pop: 124,936
Ross
County Seat: Chillicothe
Pop: 77,093
Sandusky
County Seat: Fremont
Pop: 58,518
Scioto
County Seat: Portsmouth
Pop: 74,008
Seneca
County Seat: Tiffin
Pop: 55,069
Shelby
County Seat: Sidney
Pop: 48,230
Stark
County Seat: Canton
Pop: 374,853
Summit
County Seat: Akron
Pop: 540,428
Trumbull
County Seat: Warren
Pop: 201,977
Tuscarawas
County Seat: New Philadelphia
Pop: 92,526
Union
County Seat: Marysville
Pop: 61,555
Van Wert
County Seat: Van Wert
Pop: 28,370
Vinton
County Seat: McArthur
Pop: 12,800
Warren
County Seat: Lebanon
Pop: 242,337
Washington
County Seat: Marietta
Pop: 59,911
Wayne
County Seat: Wooster
Pop: 116,894
Williams
County Seat: Bryan
Pop: 36,692
Wood
County Seat: Bowling Green
Pop: 131,408
Wyandot
County Seat: Upper Sandusky
Pop: 21,772