Counties in Ohio, United States

County Name	Population	Water Area Percentage	Land Area Percentage
Adams County, OH	27,330	0.32%	99.68%
Allen County, OH	108,473	0.6%	99.4%
Ashland County, OH	52,523	0.58%	99.42%
Ashtabula County, OH	102,728	48.67%	51.33%
Athens County, OH	62,223	0.35%	99.65%
Auglaize County, OH	46,611	0.12%	99.88%
Belmont County, OH	70,226	0.75%	99.25%
Brown County, OH	42,285	0.7%	99.3%
Butler County, OH	332,807	0.62%	99.38%
Carroll County, OH	28,836	1.09%	98.91%
Champaign County, OH	38,890	0.27%	99.73%
Clark County, OH	144,742	0.92%	99.08%
Clermont County, OH	177,977	1.24%	98.76%
Clinton County, OH	40,543	0.34%	99.66%
Columbiana County, OH	112,075	0.51%	99.49%
Coshocton County, OH	36,655	0.62%	99.38%
Crawford County, OH	46,966	0.18%	99.82%
Cuyahoga County, OH	1,393,978	63.19%	36.81%
Darke County, OH	53,309	0.08%	99.92%
Defiance County, OH	39,500	0.73%	99.27%
Delaware County, OH	109,989	2.97%	97.03%
Erie County, OH	79,551	59.29%	40.71%
Fairfield County, OH	122,759	0.69%	99.31%
Fayette County, OH	28,433	0.12%	99.88%
Franklin County, OH	1,068,978	0.63%	99.37%
Fulton County, OH	42,084	0.13%	99.87%
Gallia County, OH	31,069	0.5%	99.5%
Geauga County, OH	90,895	1.13%	98.87%
Greene County, OH	147,886	0.32%	99.68%
Guernsey County, OH	40,792	1.21%	98.79%
Hamilton County, OH	845,303	1.31%	98.69%
Hancock County, OH	71,295	0.42%	99.58%
Hardin County, OH	31,945	0.05%	99.95%
Harrison County, OH	15,856	1.77%	98.23%
Henry County, OH	29,210	0.83%	99.17%
Highland County, OH	40,875	0.82%	99.18%
Hocking County, OH	28,241	0.2%	99.8%
Holmes County, OH	38,943	0.24%	99.76%
Huron County, OH	59,487	0.37%	99.63%
Jackson County, OH	32,641	0.29%	99.71%
Jefferson County, OH	73,894	0.31%	99.69%
Knox County, OH	54,500	0.46%	99.54%
Lake County, OH	227,511	76.69%	23.31%
Lawrence County, OH	62,319	0.51%	99.49%
Licking County, OH	145,491	0.27%	99.73%
Logan County, OH	46,005	1.79%	98.21%
Lorain County, OH	284,664	46.64%	53.36%
Lucas County, OH	455,054	42.86%	57.14%
Madison County, OH	40,213	0.16%	99.84%
Mahoning County, OH	257,555	1.92%	98.08%
Marion County, OH	66,217	0.07%	99.92%
Medina County, OH	151,095	0.37%	99.63%
Meigs County, OH	23,072	0.68%	99.32%
Mercer County, OH	40,924	2.12%	97.88%
Miami County, OH	98,868	0.53%	99.47%
Monroe County, OH	15,180	0.42%	99.58%
Montgomery County, OH	559,062	0.58%	99.43%
Morgan County, OH	14,897	1%	99%
Morrow County, OH	31,628	0.28%	99.72%
Muskingum County, OH	84,585	1.18%	98.82%
Noble County, OH	14,058	1.38%	98.62%
Ottawa County, OH	40,985	56.43%	43.57%
Paulding County, OH	20,293	0.63%	99.37%
Perry County, OH	34,078	0.68%	99.32%
Pickaway County, OH	52,727	0.96%	99.04%
Pike County, OH	27,695	0.55%	99.45%
Portage County, OH	152,061	2.9%	97.1%
Preble County, OH	42,337	0.36%	99.64%
Putnam County, OH	34,726	0.07%	99.93%
Richland County, OH	128,852	0.69%	99.31%
Ross County, OH	73,345	0.66%	99.34%
Sandusky County, OH	61,792	2.06%	97.94%
Scioto County, OH	79,195	0.62%	99.38%
Seneca County, OH	58,683	0.32%	99.68%
Shelby County, OH	47,910	0.43%	99.57%
Stark County, OH	378,098	0.82%	99.18%
Summit County, OH	542,899	1.75%	98.25%
Trumbull County, OH	225,116	2.87%	97.13%
Tuscarawas County, OH	90,914	0.68%	99.32%
Union County, OH	40,909	0.08%	99.92%
Van Wert County, OH	29,659	0.1%	99.9%
Vinton County, OH	12,806	0.21%	99.79%
Warren County, OH	158,383	1.84%	98.16%
Washington County, OH	63,251	0.78%	99.22%
Wayne County, OH	111,564	0.17%	99.83%
Williams County, OH	39,188	0.31%	99.69%
Wood County, OH	121,065	0.52%	99.48%
Wyandot County, OH	22,908	0.49%	99.51%

State Information	Safety and Environment
Official Site of Ohio State Population: 11,594,163 Ohio Counties	Natural Resource Office