List of counties in Ohio

From Wikipedia, the free encyclopedia

Counties of Ohio

This is a list of the eighty-eight counties in the U.S. state of Ohio. The Ohio Constitution allows counties to set up a charter government as many cities and villages do, but only Summit County has done so. Counties do not possess home rule powers and can do only what has been expressly authorized by the Ohio General Assembly. Ohio law defines a structure for county government, although each county may choose to define its own. Summit County has chosen an alternate structure, while all of the other counties use the default structure. The elected county officials include a sheriff (the highest law enforcement officer in the county); prosecutor (equivalent of a district attorney in other states); coroner, engineer, auditor, treasurer and clerk of courts.

The Federal Information Processing Standard (FIPS) code, which is used by the United States government to identify states and counties uniquely, is provided with each entry.^[1] Ohio's code is 39, which when combined with any county code would be written as 39XXX. The FIPS code for each county links to census data for that county.

[edit] List of counties

County	FIPS Code ^[2]	County Seat ^[3]	Created ^[3]^[4]	Origin ^[5]	Etymology ^[4]^[5]	Population ^[2]^[3]	Area ^[3]	Map
Adams County	001	West Union	July 10, 1797	Hamilton County	John Adams, President when the county was organized	&&&&&&&&&&027330.&&&&&027,330	&&&&&&&&&&&&0583.910000583.91 sq mi (&&&&&&&&&&&01512.&&&&&01,512 km²)	Image:Map of Ohio highlighting Adams County.svg
Allen County	003	Lima	March 1, 1820	Shelby County	John Allen, a War of 1812 officer^[6]	&&&&&&&&&0108473.&&&&&0108,473	&&&&&&&&&&&&0404.430000404.43 sq mi (&&&&&&&&&&&01047.&&&&&01,047 km²)	Image:Map of Ohio highlighting Allen County.svg
Ashland County	005	Ashland	February 24, 1846	Wayne, Richland, Huron, and Lorain Counties	Ashland, home of Henry Clay	&&&&&&&&&&052523.&&&&&052,523	&&&&&&&&&&&&0424.370000424.37 sq mi (&&&&&&&&&&&01099.&&&&&01,099 km²)	Image:Map of Ohio highlighting Ashland County.svg
Ashtabula County	007	Jefferson	June 7, 1807	Trumbull and Geauga Counties	Ashtabula River, which means "fish river" in an Algonquian language^[7]	&&&&&&&&&0102728.&&&&&0102,728	&&&&&&&&&&&&0702.440000702.44 sq mi (&&&&&&&&&&&01819.&&&&&01,819 km²)	Image:Map of Ohio highlighting Ashtabula County.svg
Athens County	009	Athens	March 1, 1805	Washington County	Athens, Greece	&&&&&&&&&&062223.&&&&&062,223	&&&&&&&&&&&&0506.760000506.76 sq mi (&&&&&&&&&&&01313.&&&&&01,313 km²)	Image:Map of Ohio highlighting Athens County.svg
Auglaize County	011	Wapakoneta	February 14, 1848	Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert Counties	Auglaize River, which means "fallen timbers river" to the Shawnee	&&&&&&&&&&046611.&&&&&046,611	&&&&&&&&&&&&0401.250000401.25 sq mi (&&&&&&&&&&&01039.&&&&&01,039 km²)	Image:Map of Ohio highlighting Auglaize County.svg
Belmont County	013	St. Clairsville	September 7, 1801	Jefferson and Washington Counties	Belle monte, which means "beautiful mountain" in French	&&&&&&&&&&070226.&&&&&070,226	&&&&&&&&&&&&0537.350000537.35 sq mi (&&&&&&&&&&&01392.&&&&&01,392 km²)	Image:Map of Ohio highlighting Belmont County.svg
Brown County	015	Georgetown	March 1, 1818	Adams and Clermont Counties	General Jacob Brown, an officer of the War of 1812	&&&&&&&&&&042285.&&&&&042,285	&&&&&&&&&&&&0491.760000491.76 sq mi (&&&&&&&&&&&01274.&&&&&01,274 km²)	Image:Map of Ohio highlighting Brown County.svg
Butler County	017	Hamilton	May 1, 1803	Hamilton County	General Richard Butler, killed at the Battle of the Wabash	&&&&&&&&&0332807.&&&&&0332,807	&&&&&&&&&&&&0467.270000467.27 sq mi (&&&&&&&&&&&01210.&&&&&01,210 km²)	Image:Map of Ohio highlighting Butler County.svg
Carroll County	019	Carrollton	January 1, 1833	Columbiana, Stark, Harrison, Jefferson, and Tuscarawas Counties	Charles Carroll, last surviving signer of the Declaration of Independence	&&&&&&&&&&028836.&&&&&028,836	&&&&&&&&&&&&0394.670000394.67 sq mi (&&&&&&&&&&&01022.&&&&&01,022 km²)	Image:Map of Ohio highlighting Carroll County.svg
Champaign County	021	Urbana	March 1, 1805	Greene and Franklin Counties	French for "a plain", describing the land in the area	&&&&&&&&&&038890.&&&&&038,890	&&&&&&&&&&&&0428.560000428.56 sq mi (&&&&&&&&&&&01110.&&&&&01,110 km²)	Image:Map of Ohio highlighting Champaign County.svg
Clark County	023	Springfield	March 1, 1818	Champaign, Madison, and Greene Counties	General George Rogers Clark, defeated the Shawnee Indians in a battle near the Springfield area	&&&&&&&&&0144742.&&&&&0144,742	&&&&&&&&&&&&0399.860000399.86 sq mi (&&&&&&&&&&&01036.&&&&&01,036 km²)	Image:Map of Ohio highlighting Clark County.svg
Clermont County	025	Batavia	December 6, 1800	Hamilton County	French for "clear mountain"	&&&&&&&&&0177977.&&&&&0177,977	&&&&&&&&&&&&0451.990000451.99 sq mi (&&&&&&&&&&&01171.&&&&&01,171 km²)	Image:Map of Ohio highlighting Clermont County.svg
Clinton County	027	Wilmington	March 1, 1810	Highland and Warren Counties	George Clinton, vice-president when the county was organized	&&&&&&&&&&040543.&&&&&040,543	&&&&&&&&&&&&0410.880000410.88 sq mi (&&&&&&&&&&&01064.&&&&&01,064 km²)	Image:Map of Ohio highlighting Clinton County.svg
Columbiana County	029	Lisbon	May 1, 1803	Jefferson and Washington Counties	Derived from the words Christopher Columbus and Anna	&&&&&&&&&0112075.&&&&&0112,075	&&&&&&&&&&&&0532.460000532.46 sq mi (&&&&&&&&&&&01379.&&&&&01,379 km²)	Image:Map of Ohio highlighting Columbiana County.svg
Coshocton County	031	Coshocton	January 31, 1810	Muskingum and Tuscarawas Counties	Delaware Indian word meaning "union of waters"	&&&&&&&&&&036655.&&&&&036,655	&&&&&&&&&&&&0564.&70000564.07 sq mi (&&&&&&&&&&&01461.&&&&&01,461 km²)	Image:Map of Ohio highlighting Coshocton County.svg
Crawford County	033	Bucyrus	April 1, 1820	Delaware County	Colonel William Crawford, Revolutionary War officer	&&&&&&&&&&046966.&&&&&046,966	&&&&&&&&&&&&0402.110000402.11 sq mi (&&&&&&&&&&&01041.&&&&&01,041 km²)	Image:Map of Ohio highlighting Crawford County.svg
Cuyahoga County	035	Cleveland	June 7, 1807	Geauga County	Cuyahoga River, which means "crooked river" in an Iroquoian language^[8]	&&&&&&&&01393978.&&&&&01,393,978	&&&&&&&&&&&&0458.490000458.49 sq mi (&&&&&&&&&&&01187.&&&&&01,187 km²)	Image:Map of Ohio highlighting Cuyahoga County.svg
Darke County	037	Greenville	January 3, 1809	Miami County	General William Darke, Revolutionary War officer	&&&&&&&&&&053309.&&&&&053,309	&&&&&&&&&&&&0599.800000599.80 sq mi (&&&&&&&&&&&01553.&&&&&01,553 km²)	Image:Map of Ohio highlighting Darke County.svg
Defiance County	039	Defiance	April 7, 1845	Williams, Henry, and Paulding Counties	Fort Defiance, built in 1794 by General Anthony Wayne	&&&&&&&&&&039500.&&&&&039,500	&&&&&&&&&&&&0411.160000411.16 sq mi (&&&&&&&&&&&01065.&&&&&01,065 km²)	Image:Map of Ohio highlighting Defiance County.svg
Delaware County	041	Delaware	April 1, 1808	Franklin County	Delaware Indians	&&&&&&&&&0110106.&&&&&0110,106	&&&&&&&&&&&&0442.410000442.41 sq mi (&&&&&&&&&&&01146.&&&&&01,146 km²)	Image:Map of Ohio highlighting Delaware County.svg
Erie County	043	Sandusky	March 15, 1838	Huron and Sandusky Counties	Erie Indians	&&&&&&&&&&079551.&&&&&079,551	&&&&&&&&&&&&0254.880000254.88 sq mi (&&&&&&&&&&&&0660.&&&&&0660 km²)	Image:Map of Ohio highlighting Erie County.svg
Fairfield County	045	Lancaster	December 9, 1800	Ross and Washington Counties	Named for the beauty of its "fair fields"	&&&&&&&&&0122759.&&&&&0122,759	&&&&&&&&&&&&0505.110000505.11 sq mi (&&&&&&&&&&&01308.&&&&&01,308 km²)	Image:Map of Ohio highlighting Fairfield County.svg
Fayette County	047	Washington	March 1, 1810	Ross and Highland Counties	Marquis de Lafayette	&&&&&&&&&&028433.&&&&&028,433	&&&&&&&&&&&&0406.580000406.58 sq mi (&&&&&&&&&&&01053.&&&&&01,053 km²)	Image:Map of Ohio highlighting Fayette County.svg
Franklin County	049	Columbus	April 30, 1803	Ross and Wayne Counties	Benjamin Franklin	&&&&&&&&01068978.&&&&&01,068,978	&&&&&&&&&&&&0539.870000539.87 sq mi (&&&&&&&&&&&01398.&&&&&01,398 km²)	Image:Map of Ohio highlighting Franklin County.svg
Fulton County	051	Wauseon	April 1, 1850	Lucas, Henry, and Williams Counties	Robert Fulton, inventor of the steamboat	&&&&&&&&&&042084.&&&&&042,084	&&&&&&&&&&&&0406.780000406.78 sq mi (&&&&&&&&&&&01054.&&&&&01,054 km²)	Image:Map of Ohio highlighting Fulton County.svg
Gallia County	053	Gallipolis	April 30, 1803	Washington and Adams Counties	Gaul, the ancient name of France	&&&&&&&&&&031069.&&&&&031,069	&&&&&&&&&&&&0468.780000468.78 sq mi (&&&&&&&&&&&01214.&&&&&01,214 km²)	Image:Map of Ohio highlighting Gallia County.svg
Geauga County	055	Chardon	March 1, 1806	Trumbull County	A Native American word meaning "raccoon"	&&&&&&&&&&090895.&&&&&090,895	&&&&&&&&&&&&0403.660000403.66 sq mi (&&&&&&&&&&&01045.&&&&&01,045 km²)	Image:Map of Ohio highlighting Geauga County.svg
Greene County	057	Xenia	May 1, 1803	Hamilton and Ross Counties	General Nathaniel Greene, Revolutionary War officer	&&&&&&&&&0147886.&&&&&0147,886	&&&&&&&&&&&&0414.880000414.88 sq mi (&&&&&&&&&&&01075.&&&&&01,075 km²)	Image:Map of Ohio highlighting Greene County.svg
Guernsey County	059	Cambridge	March 1, 1810	Belmont and Muskingum Counties	Guernsey, from where most of the settlers originated	&&&&&&&&&&040792.&&&&&040,792	&&&&&&&&&&&&0521.900000521.90 sq mi (&&&&&&&&&&&01352.&&&&&01,352 km²)	Image:Map of Ohio highlighting Guernsey County.svg
Hamilton County	061	Cincinnati	January 2, 1790	One of the original counties	Alexander Hamilton, Secretary of the Treasury when the county was organized	&&&&&&&&&0845303.&&&&&0845,303	&&&&&&&&&&&&0407.360000407.36 sq mi (&&&&&&&&&&&01055.&&&&&01,055 km²)	Image:Map of Ohio highlighting Hamilton County.svg
Hancock County	063	Findlay	April 1, 1820	Logan County	John Hancock, president of the Continental Congress	&&&&&&&&&&071295.&&&&&071,295	&&&&&&&&&&&&0531.350000531.35 sq mi (&&&&&&&&&&&01376.&&&&&01,376 km²)	Image:Map of Ohio highlighting Hancock County.svg
Hardin County	065	Kenton	April 1, 1820	Logan County	General John Hardin, Revolutionary War officer	&&&&&&&&&&031945.&&&&&031,945	&&&&&&&&&&&&0470.290000470.29 sq mi (&&&&&&&&&&&01218.&&&&&01,218 km²)	Image:Map of Ohio highlighting Hardin County.svg
Harrison County	067	Cadiz	February 1, 1813	Jefferson and Tuscarawas Counties	General William Henry Harrison, an officer of the War of 1812	&&&&&&&&&&015856.&&&&&015,856	&&&&&&&&&&&&0403.530000403.53 sq mi (&&&&&&&&&&&01045.&&&&&01,045 km²)	Image:Map of Ohio highlighting Harrison County.svg
Henry County	069	Napoleon	April 1, 1820	Shelby County	Patrick Henry, Revolutionary War officer	&&&&&&&&&&029210.&&&&&029,210	&&&&&&&&&&&&0416.500000416.50 sq mi (&&&&&&&&&&&01079.&&&&&01,079 km²)	Image:Map of Ohio highlighting Henry County.svg
Highland County	071	Hillsboro	May 1, 1805	Ross, Adams, and Clermont Counties	Descriptive of the county's terrain	&&&&&&&&&&040875.&&&&&040,875	&&&&&&&&&&&&0553.280000553.28 sq mi (&&&&&&&&&&&01433.&&&&&01,433 km²)	Image:Map of Ohio highlighting Highland County.svg
Hocking County	073	Logan	March 1, 1818	Athens, Ross, and Fairfield Counties	Possibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle"	&&&&&&&&&&028241.&&&&&028,241	&&&&&&&&&&&&0422.750000422.75 sq mi (&&&&&&&&&&&01095.&&&&&01,095 km²)	Image:Map of Ohio highlighting Hocking County.svg
Holmes County	075	Millersburg	January 20, 1824	Coshocton, Wayne, and Tuscarawas Counties	Major Andrew Holmes, a War of 1812 officer	&&&&&&&&&&038943.&&&&&038,943	&&&&&&&&&&&&0422.990000422.99 sq mi (&&&&&&&&&&&01096.&&&&&01,096 km²)	Image:Map of Ohio highlighting Holmes County.svg
Huron County	077	Norwalk	March 7, 1809	Portage and Cuyahoga Counties	Huron Indians	&&&&&&&&&&059847.&&&&&059,847	&&&&&&&&&&&&0492.690000492.69 sq mi (&&&&&&&&&&&01276.&&&&&01,276 km²)	Image:Map of Ohio highlighting Huron County.svg
Jackson County	079	Jackson	March 1, 1816	Scioto, Gallia, Athens, and Ross Counties	General Andrew Jackson	&&&&&&&&&&032641.&&&&&032,641	&&&&&&&&&&&&0420.280000420.28 sq mi (&&&&&&&&&&&01089.&&&&&01,089 km²)	Image:Map of Ohio highlighting Jackson County.svg
Jefferson County	081	Steubenville	July 29, 1797	Washington County	Thomas Jefferson, Vice-President when the county was organized	&&&&&&&&&&073894.&&&&&073,894	&&&&&&&&&&&&0409.610000409.61 sq mi (&&&&&&&&&&&01061.&&&&&01,061 km²)	Image:Map of Ohio highlighting Jefferson County.svg
Knox County	083	Mount Vernon	March 1, 1808	Fairfield County	General Henry Knox, the first Secretary of War	&&&&&&&&&&054500.&&&&&054,500	&&&&&&&&&&&&0527.120000527.12 sq mi (&&&&&&&&&&&01365.&&&&&01,365 km²)	Image:Map of Ohio highlighting Knox County.svg
Lake County	085	Painesville	March 6, 1840	Geauga and Cuyahoga Counties	Named as such due to it bordering Lake Erie	&&&&&&&&&0227511.&&&&&0227,511	&&&&&&&&&&&&0228.210000228.21 sq mi (&&&&&&&&&&&&0591.&&&&&0591 km²)	Image:Map of Ohio highlighting Lake County.svg
Lawrence County	087	Ironton	December 21, 1815	Gallia and Scioto Counties	Captain James Lawrence, a War of 1812 officer	&&&&&&&&&&062319.&&&&&062,319	&&&&&&&&&&&&0454.960000454.96 sq mi (&&&&&&&&&&&01178.&&&&&01,178 km²)	Image:Map of Ohio highlighting Lawrence County.svg
Licking County	089	Newark	March 1, 1808	Fairfield County	Named for the salt licks in the area	&&&&&&&&&0145491.&&&&&0145,491	&&&&&&&&&&&&0686.500000686.50 sq mi (&&&&&&&&&&&01778.&&&&&01,778 km²)	Image:Map of Ohio highlighting Licking County.svg
Logan County	091	Bellefontaine	March 1, 1818	Champaign County	General Benjamin Logan, who destroyed Shawnee Indian towns in the county	&&&&&&&&&&046005.&&&&&046,005	&&&&&&&&&&&&0458.440000458.44 sq mi (&&&&&&&&&&&01187.&&&&&01,187 km²)	Image:Map of Ohio highlighting Logan County.svg
Lorain County	093	Elyria	December 26, 1822	Huron, Cuyahoga, and Medina Counties	Province of Lorraine, France	&&&&&&&&&0284664.&&&&&0284,664	&&&&&&&&&&&&0492.500000492.50 sq mi (&&&&&&&&&&&01276.&&&&&01,276 km²)	Image:Map of Ohio highlighting Lorain County.svg
Lucas County	095	Toledo	June 20, 1835	Wood, Sandusky, and Huron Counties	Robert Lucas, Governor of Ohio when the county was created	&&&&&&&&&0455054.&&&&&0455,054	&&&&&&&&&&&&0340.460000340.46 sq mi (&&&&&&&&&&&&0882.&&&&&0882 km²)	Image:Map of Ohio highlighting Lucas County.svg
Madison County	097	London	March 1, 1810	Franklin County	President James Madison	&&&&&&&&&&040213.&&&&&040,213	&&&&&&&&&&&&0465.440000465.44 sq mi (&&&&&&&&&&&01205.&&&&&01,205 km²)	Image:Map of Ohio highlighting Madison County.svg
Mahoning County	099	Youngstown	March 1, 1846	Columbiana and Trumbull Counties	Mahoning River, a Native American word meaning "at the licks"	&&&&&&&&&0257555.&&&&&0257,555	&&&&&&&&&&&&0415.250000415.25 sq mi (&&&&&&&&&&&01075.&&&&&01,075 km²)	Image:Map of Ohio highlighting Mahoning County.svg
Marion County	101	Marion	April 1, 1820	Delaware County	General Francis Marion, a Revolutionary War officer	&&&&&&&&&&066217.&&&&&066,217	&&&&&&&&&&&&0403.840000403.84 sq mi (&&&&&&&&&&&01046.&&&&&01,046 km²)	Image:Map of Ohio highlighting Marion County.svg
Medina County	103	Medina	February 18, 1812	Portage County	Medina	&&&&&&&&&0151095.&&&&&0151,095	&&&&&&&&&&&&0421.550000421.55 sq mi (&&&&&&&&&&&01092.&&&&&01,092 km²)	Image:Map of Ohio highlighting Medina County.svg
Meigs County	105	Pomeroy	April 1, 1819	Gallia and Athens Counties	Return Jonathan Meigs, Jr., Governor of Ohio and Postmaster General at the time the county was organized	&&&&&&&&&&023072.&&&&&023,072	&&&&&&&&&&&&0429.420000429.42 sq mi (&&&&&&&&&&&01112.&&&&&01,112 km²)	Image:Map of Ohio highlighting Meigs County.svg
Mercer County	107	Celina	April 1, 1820	Darke County	General Hugh Mercer, a Revolutionary War officer	&&&&&&&&&&040924.&&&&&040,924	&&&&&&&&&&&&0463.270000463.27 sq mi (&&&&&&&&&&&01200.&&&&&01,200 km²)	Image:Map of Ohio highlighting Mercer County.svg
Miami County	109	Troy	March 1, 1807	Montgomery County	Miami Indians	&&&&&&&&&&098868.&&&&&098,868	&&&&&&&&&&&&0407.&40000407.04 sq mi (&&&&&&&&&&&01054.&&&&&01,054 km²)	Image:Map of Ohio highlighting Miami County.svg
Monroe County	111	Woodsfield	January 29, 1813	Belmont, Washington, and Guernsey Counties	James Monroe, Secretary of State when the county was organized	&&&&&&&&&&015180.&&&&&015,180	&&&&&&&&&&&&0455.540000455.54 sq mi (&&&&&&&&&&&01180.&&&&&01,180 km²)	Image:Map of Ohio highlighting Monroe County.svg
Montgomery County	113	Dayton	May 1, 1803	Hamilton and Wayne Counties	General Richard Montgomery, a Revolutionary War officer	&&&&&&&&&0559062.&&&&&0559,062	&&&&&&&&&&&&0461.680000461.68 sq mi (&&&&&&&&&&&01196.&&&&&01,196 km²)	Image:Map of Ohio highlighting Montgomery County.svg
Morgan County	115	McConnelsville	December 29, 1817	Washington, Guernsey, and Muskingum Counties	General Daniel Morgan, a Revolutionary War officer	&&&&&&&&&&014897.&&&&&014,897	&&&&&&&&&&&&0417.660000417.66 sq mi (&&&&&&&&&&&01082.&&&&&01,082 km²)	Image:Map of Ohio highlighting Morgan County.svg
Morrow County	117	Mount Gilead	March 1, 1848	Knox, Marion, Delaware, and Richland Counties	Jeremiah Morrow, Governor of Ohio	&&&&&&&&&&031628.&&&&&031,628	&&&&&&&&&&&&0406.220000406.22 sq mi (&&&&&&&&&&&01052.&&&&&01,052 km²)	Image:Map of Ohio highlighting Morrow County.svg
Muskingum County	119	Zanesville	March 1, 1803	Washington and Fairfield Counties	A Native American word meaning "A town by the river" or a Native American word meaning "by the river side"	&&&&&&&&&&084585.&&&&&084,585	&&&&&&&&&&&&0664.630000664.63 sq mi (&&&&&&&&&&&01721.&&&&&01,721 km²)	Image:Map of Ohio highlighting Muskingum County.svg
Noble County	121	Caldwell	April 1, 1851	Monroe, Washington, Morgan, and Guernsey Counties	James Noble, an early settler	&&&&&&&&&&014058.&&&&&014,058	&&&&&&&&&&&&0399.&&&&&0399.00 sq mi (&&&&&&&&&&&01033.&&&&&01,033 km²)	Image:Map of Ohio highlighting Noble County.svg
Ottawa County	123	Port Clinton	March 6, 1840	Erie, Sandusky, and Lucas Counties	Named for the Ottawa Indians; Ottawa means "trader" in their language	&&&&&&&&&&040985.&&&&&040,985	&&&&&&&&&&&&0254.950000254.95 sq mi (&&&&&&&&&&&&0660.&&&&&0660 km²)	Image:Map of Ohio highlighting Ottawa County.svg
Paulding County	125	Paulding	April 1, 1820	Darke County	John Paulding, captor of spy John André during the Revolutionary War	&&&&&&&&&&020293.&&&&&020,293	&&&&&&&&&&&&0416.260000416.26 sq mi (&&&&&&&&&&&01078.&&&&&01,078 km²)	Image:Map of Ohio highlighting Paulding County.svg
Perry County	127	New Lexington	March 1, 1818	Washington, Fairfield, and Muskingum Counties	Commodore Oliver Hazard Perry, a naval officer of the War of 1812	&&&&&&&&&&034078.&&&&&034,078	&&&&&&&&&&&&0409.780000409.78 sq mi (&&&&&&&&&&&01061.&&&&&01,061 km²)	Image:Map of Ohio highlighting Perry County.svg
Pickaway County	129	Circleville	March 1, 1810	Ross, Fairfield, and Franklin Counties	A misspelling of the Piqua tribe, a branch of the Shawnee or A variant of a Native American word "Piqua"	&&&&&&&&&&052727.&&&&&052,727	&&&&&&&&&&&&0501.910000501.91 sq mi (&&&&&&&&&&&01300.&&&&&01,300 km²)	Image:Map of Ohio highlighting Pickaway County.svg
Pike County	131	Waverly	February 1, 1815	Ross, Scioto, and Adams Counties	General Zebulon M. Pike, a Revolutionary War officer and discoverer of Pike's Peak in Colorado in 1806	&&&&&&&&&&027695.&&&&&027,695	&&&&&&&&&&&&0441.490000441.49 sq mi (&&&&&&&&&&&01143.&&&&&01,143 km²)	Image:Map of Ohio highlighting Pike County.svg
Portage County	133	Ravenna	June 7, 1807	Trumbull County	Derived from an Indian portage	&&&&&&&&&0152061.&&&&&0152,061	&&&&&&&&&&&&0492.390000492.39 sq mi (&&&&&&&&&&&01275.&&&&&01,275 km²)	Image:Map of Ohio highlighting Portage County.svg
Preble County	135	Eaton	March 1, 1808	Montgomery and Butler Counties	Captain Edward Preble, a Naval commander in the Revolutionary War	&&&&&&&&&&042337.&&&&&042,337	&&&&&&&&&&&&0424.800000424.80 sq mi (&&&&&&&&&&&01100.&&&&&01,100 km²)	Image:Map of Ohio highlighting Preble County.svg
Putnam County	137	Ottawa	April 1, 1820	Shelby County	General Israel Putnam, a Revolutionary War officer	&&&&&&&&&&034726.&&&&&034,726	&&&&&&&&&&&&0483.870000483.87 sq mi (&&&&&&&&&&&01253.&&&&&01,253 km²)	Image:Map of Ohio highlighting Putnam County.svg
Richland County	139	Mansfield	March 1, 1808	Fairfield County	Descriptive of the soil in the area	&&&&&&&&&0128852.&&&&&0128,852	&&&&&&&&&&&&0496.880000496.88 sq mi (&&&&&&&&&&&01287.&&&&&01,287 km²)	Image:Map of Ohio highlighting Richland County.svg
Ross County	141	Chillicothe	August 20, 1798	Adams and Washington Counties	Named for James Ross by territorial governor Arthur St. Clair	&&&&&&&&&&073345.&&&&&073,345	&&&&&&&&&&&&0688.410000688.41 sq mi (&&&&&&&&&&&01783.&&&&&01,783 km²)	Image:Map of Ohio highlighting Ross County.svg
Sandusky County	143	Fremont	April 1, 1820	Huron County	An Iroquois word meaning "cold water"	&&&&&&&&&&061792.&&&&&061,792	&&&&&&&&&&&&0409.180000409.18 sq mi (&&&&&&&&&&&01060.&&&&&01,060 km²)	Image:Map of Ohio highlighting Sandusky County.svg
Scioto County	145	Portsmouth	May 1, 1803	Adams County	Scioto River; Scioto is a Wyandot word meaning "deer"	&&&&&&&&&&079195.&&&&&079,195	&&&&&&&&&&&&0612.270000612.27 sq mi (&&&&&&&&&&&01586.&&&&&01,586 km²)	Image:Map of Ohio highlighting Scioto County.svg
Seneca County	147	Tiffin	April 1, 1820	Huron County	Seneca Indians, who had a reservation in the county area at the time	&&&&&&&&&&058683.&&&&&058,683	&&&&&&&&&&&&0550.590000550.59 sq mi (&&&&&&&&&&&01426.&&&&&01,426 km²)	Image:Map of Ohio highlighting Seneca County.svg
Shelby County	149	Sidney	April 1, 1819	Miami County	General Isaac Shelby, a Revolutionary War officer	&&&&&&&&&&047910.&&&&&047,910	&&&&&&&&&&&&0409.270000409.27 sq mi (&&&&&&&&&&&01060.&&&&&01,060 km²)	Image:Map of Ohio highlighting Shelby County.svg
Stark County	151	Canton	February 13, 1808	Columbiana County	General John Stark, a Revolutionary War officer	&&&&&&&&&0378098.&&&&&0378,098	&&&&&&&&&&&&0576.140000576.14 sq mi (&&&&&&&&&&&01492.&&&&&01,492 km²)	Image:Map of Ohio highlighting Stark County.svg
Summit County	153	Akron	March 3, 1840	Medina, Portage, and Stark Counties	Derived from having the highest elevation along the Ohio Canal	&&&&&&&&&0542899.&&&&&0542,899	&&&&&&&&&&&&0412.720000412.72 sq mi (&&&&&&&&&&&01069.&&&&&01,069 km²)	Image:Map of Ohio highlighting Summit County.svg
Trumbull County	155	Warren	July 10, 1800	One of the original counties	Jonathan Trumbull, Governor of Connecticut when the county was organized	&&&&&&&&&0225116.&&&&&0225,116	&&&&&&&&&&&&0616.480000616.48 sq mi (&&&&&&&&&&&01597.&&&&&01,597 km²)	Image:Map of Ohio highlighting Trumbull County.svg
Tuscarawas County	157	New Philadelphia	March 15, 1808	Muskingum County	Tuscarawas River, meaning "open mouth river" or the Tuscarawas tribe who lived on the river	&&&&&&&&&&090914.&&&&&090,914	&&&&&&&&&&&&0567.580000567.58 sq mi (&&&&&&&&&&&01470.&&&&&01,470 km²)	Image:Map of Ohio highlighting Tuscarawas County.svg
Union County	159	Marysville	April 1, 1820	Delaware, Franklin, Logan, and Madison Counties	Named as such due to it formed by a union of four counties	&&&&&&&&&&040909.&&&&&040,909	&&&&&&&&&&&&0436.650000436.65 sq mi (&&&&&&&&&&&01131.&&&&&01,131 km²)	Image:Map of Ohio highlighting Union County.svg
Van Wert County	161	Van Wert	April 1, 1820	Darke County	Isaac Van Wart, captor of spy John André during the Revolutionary War	&&&&&&&&&&029659.&&&&&029,659	&&&&&&&&&&&&0410.&90000410.09 sq mi (&&&&&&&&&&&01062.&&&&&01,062 km²)	Image:Map of Ohio highlighting Van Wert County.svg
Vinton County	163	McArthur	March 23, 1850	Athens, Gallia, Hocking, Jackson, and Ross Counties	Samuel Finley Vinton, Ohio Statesman and U.S. Congressman	&&&&&&&&&&012806.&&&&&012,806	&&&&&&&&&&&&0414.&80000414.08 sq mi (&&&&&&&&&&&01072.&&&&&01,072 km²)	Image:Map of Ohio highlighting Vinton County.svg
Warren County	165	Lebanon	May 1, 1803	Hamilton County	General Joseph Warren, a Revolutionary War officer	&&&&&&&&&0158383.&&&&&0158,383	&&&&&&&&&&&&0399.630000399.63 sq mi (&&&&&&&&&&&01035.&&&&&01,035 km²)	Image:Map of Ohio highlighting Warren County.svg
Washington County	167	Marietta	July 27, 1788	One of the original counties	George Washington, president of the Constitutional Convention	&&&&&&&&&&063251.&&&&&063,251	&&&&&&&&&&&&0635.150000635.15 sq mi (&&&&&&&&&&&01645.&&&&&01,645 km²)	Image:Map of Ohio highlighting Washington County.svg
Wayne County	169	Wooster	August 15, 1796	Refactored from non-county territory	General Anthony Wayne, a Revolutionary War officer	&&&&&&&&&0111564.&&&&&0111,564	&&&&&&&&&&&&0555.360000555.36 sq mi (&&&&&&&&&&&01438.&&&&&01,438 km²)	Image:Map of Ohio highlighting Wayne County.svg
Williams County	171	Bryan	April 1, 1820	Darke County	David Williams, captor of spy John André during the Revolutionary War	&&&&&&&&&&039188.&&&&&039,188	&&&&&&&&&&&&0421.740000421.74 sq mi (&&&&&&&&&&&01092.&&&&&01,092 km²)	Image:Map of Ohio highlighting Williams County.svg
Wood County	173	Bowling Green	April 1, 1820	Refactored from non-county territory	Eleazer D. Wood, builder of Fort Meigs	&&&&&&&&&0121065.&&&&&0121,065	&&&&&&&&&&&&0617.320000617.32 sq mi (&&&&&&&&&&&01599.&&&&&01,599 km²)	Image:Map of Ohio highlighting Wood County.svg
Wyandot County	175	Upper Sandusky	February 3, 1845	Marion, Crawford, and Hardin Counties	Wyandot Indians	&&&&&&&&&&022908.&&&&&022,908	&&&&&&&&&&&&0405.610000405.61 sq mi (&&&&&&&&&&&01051.&&&&&01,051 km²)	Image:Map of Ohio highlighting Wyandot County.svg

[edit] References

^ FIPS Publish 6-4. National Institute of Standards and Technology. Retrieved on 2007-04-11.
^ ^a ^b EPA County FIPS Code Listing. EPA. Retrieved on 2007-04-09.
^ ^a ^b ^c ^d NACo - Find a County. Retrieved on 2007-07-22.
^ ^a ^b Federal Roster: Counties of Ohio, Derivation of Name and Date of Erection. Retrieved on 2007-07-22.
^ ^a ^b Ohio Genealogy Clickable County Map. Retrieved on 2007-07-25.
^ Resolution of 111th Ohio General Assembly designating John Allen as the person for which Allen County was named.
^ Ashtabula, Encyclopædia Britannica, 2007. Accessed 2007-11-19.
^ Cuyahoga River, Encyclopædia Britannica, 2007. Accessed 2007-11-19.

History of Ohio: From the Glacial Period to the Present Time. Retrieved on 2007-08-18.

[edit] See also

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Image:Flag of Ohio.svg	v • d • e State of Ohio Columbus (capital)
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