Map and List of All Counties in Ohio

Map of All Counties in Ohio

List of All Counties in Ohio

Map KeyNamePopulation
Adams County27,698
Allen County102,351
Ashland County53,484
Ashtabula County97,241
Athens County65,327
Auglaize County45,656
Belmont County67,006
Brown County43,432
Butler County383,134
Carroll County26,914
Champaign County38,885
Clark County134,083
Clermont County206,428
Clinton County41,968
Columbiana County101,883
Coshocton County36,600
Crawford County41,494
Cuyahoga County1,235,072
Darke County51,113
Defiance County38,087
Delaware County209,177
Erie County74,266
Fairfield County157,574
Fayette County28,525
Franklin County1,316,756
Fulton County42,126
Gallia County29,898
Geauga County93,649
Greene County168,937
Guernsey County38,875
Hamilton County817,473
Hancock County75,783
Hardin County31,365
Harrison County15,040
Henry County27,006
Highland County43,161
Hocking County28,264
Holmes County43,960
Huron County58,266
Jackson County32,413
Jefferson County65,325
Knox County62,322
Lake County230,149
Lawrence County59,463
Licking County176,862
Logan County45,672
Lorain County309,833
Lucas County428,348
Madison County44,731
Mahoning County228,683
Marion County65,093
Medina County179,746
Meigs County22,907
Mercer County41,172
Miami County106,987
Monroe County13,654
Montgomery County531,687
Morgan County14,508
Morrow County35,328
Muskingum County86,215
Noble County14,424
Ottawa County40,525
Paulding County18,672
Perry County36,134
Pickaway County58,457
Pike County27,772
Portage County162,466
Preble County40,882
Putnam County33,861
Richland County121,154
Ross County76,666
Sandusky County58,518
Scioto County75,314
Seneca County55,178
Shelby County48,590
Stark County370,606
Summit County541,013
Trumbull County197,974
Tuscarawas County91,987
Union County58,988
Van Wert County28,275
Vinton County13,085
Warren County234,602
Washington County59,911
Wayne County115,710
Williams County36,692
Wood County130,817
Wyandot County21,772