List of Counties in Ohio - List of Counties

List of Counties

County FIPS Code
 County Seat
 Created
 Origin
 Etymology
 Population
 Area
 Map
Adams County 001 West Union July 10, 1797 Hamilton County John Adams (1735-1826), second U.S. President and executive when the county was organized 700428550000000000028,550 7002583910000000000583.91 sq mi
(70031512000000000001,512 km2)
Allen County 003 Lima March 1, 1820 Shelby County John Allen (1771/2-1813), a War of 1812 colonel 7005106331000000000106,331 7002404430000000000404.43 sq mi
(70031047000000000001,047 km2)
Ashland County 005 Ashland February 24, 1846 Wayne, Richland, Huron, and Lorain Counties Ashland, home of U.S. Senator from Kentucky Henry Clay. 700453139000000000053,139 7002424370000000000424.37 sq mi
(70031099000000000001,099 km2)
Ashtabula County 007 Jefferson June 7, 1807 Trumbull and Geauga Counties Ashtabula River, which means "fish river" in an Algonquian language 7005101497000000000101,497 7002702440000000000702.44 sq mi
(70031819000000000001,819 km2)
Athens County 009 Athens March 1, 1805 Washington County Athens, Greece 700464757000000000064,757 7002506760000000000506.76 sq mi
(70031313000000000001,313 km2)
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 700445949000000000045,949 7002401250000000000401.25 sq mi
(70031039000000000001,039 km2)
Belmont County 013 St. Clairsville September 7, 1801 Jefferson and Washington Counties Belle monte, which means "beautiful mountain" in French 700470400000000000070,400 7002537350000000000537.35 sq mi
(70031392000000000001,392 km2)
Brown County 015 Georgetown March 1, 1818 Adams and Clermont Counties General Jacob Brown (1775-1828), an officer of the War of 1812 700444846000000000044,846 7002491760000000000491.76 sq mi
(70031274000000000001,274 km2)
Butler County 017 Hamilton May 1, 1803 Hamilton County General Richard Butler (1743-1791), killed at the Battle of the Wabash 7005368130000000000368,130 7002467270000000000467.27 sq mi
(70031210000000000001,210 km2)
Carroll County 019 Carrollton January 1, 1833 Columbiana, Stark, Harrison, Jefferson, and Tuscarawas Counties Charles Carroll (1737-1832), last surviving signer of the United States Declaration of Independence 700428836000000000028,836 7002394670000000000394.67 sq mi
(70031022000000000001,022 km2)
Champaign County 021 Urbana March 1, 1805 Greene and Franklin Counties French for "a plain", describing the land in the area 700440097000000000040,097 7002428560000000000428.56 sq mi
(70031110000000000001,110 km2)
Clark County 023 Springfield March 1, 1818 Champaign, Madison, and Greene Counties General George Rogers Clark (1752-1818), defeated the Shawnee Indians in a battle near the Springfield area 7005138333000000000138,333 7002399860000000000399.86 sq mi
(70031036000000000001,036 km2)
Clermont County 025 Batavia December 6, 1800 Hamilton County French for "clear mountain" 7005197363000000000197,363 7002451990000000000451.99 sq mi
(70031171000000000001,171 km2)
Clinton County 027 Wilmington March 1, 1810 Highland and Warren Counties George Clinton (1739-1812), vice-president when the county was organized 700442040000000000042,040 7002410880000000000410.88 sq mi
(70031064000000000001,064 km2)
Columbiana County 029 Lisbon May 1, 1803 Jefferson and Washington Counties Derived from the words Christopher Columbus, European explorer of the Americas 7005107841000000000107,841 7002532460000000000532.46 sq mi
(70031379000000000001,379 km2)
Coshocton County 031 Coshocton January 31, 1810 Muskingum and Tuscarawas Counties Delaware Indian word meaning "union of waters" 700436901000000000036,901 7002564070000000000564.07 sq mi
(70031461000000000001,461 km2)
Crawford County 033 Bucyrus April 1, 1820 Delaware County Colonel William Crawford (1732-1782), Revolutionary War officer 700443784000000000043,784 7002402110000000000402.11 sq mi
(70031041000000000001,041 km2)
Cuyahoga County 035 Cleveland June 7, 1807 Geauga County Cuyahoga River, which means "crooked river" in an Iroquoian language 70061280122000000001,280,122 7002458490000000000458.49 sq mi
(70031187000000000001,187 km2)
Darke County 037 Greenville January 3, 1809 Miami County General William Darke (1736-1801), Revolutionary War officer 700452959000000000052,959 7002599790000000000599.80 sq mi
(70031553000000000001,553 km2)
Defiance County 039 Defiance April 7, 1845 Williams, Henry, and Paulding Counties Fort Defiance, built in 1794 by General Anthony Wayne 700439037000000000039,037 7002411160000000000411.16 sq mi
(70031065000000000001,065 km2)
Delaware County 041 Delaware April 1, 1808 Franklin County Delaware Indians 7005174214000000000174,214 7002442410000000000442.41 sq mi
(70031146000000000001,146 km2)
Erie County 043 Sandusky March 15, 1838 Huron and Sandusky Counties Erie Indians 700477079000000000077,079 7002254880000000000254.88 sq mi
(7002660000000000000660 km2)
Fairfield County 045 Lancaster December 9, 1800 Ross and Washington Counties Named for the beauty of its "fair fields" 7005146156000000000146,156 7002505110000000000505.11 sq mi
(70031308000000000001,308 km2)
Fayette County 047 Washington Court House March 1, 1810 Ross and Highland Counties Marquis de Lafayette, French military officer and aristocrat who participated in both the American and French revolutions. 700429030000000000029,030 7002406580000000000406.58 sq mi
(70031053000000000001,053 km2)
Franklin County 049 Columbus April 30, 1803 Ross and Wayne Counties Benjamin Franklin (1706-1791) - Founding Father, author, printer, satirist, political theorist, scientist, inventor and statesman. 70061163414000000001,163,414 7002539870000000000539.87 sq mi
(70031398000000000001,398 km2)
Fulton County 051 Wauseon April 1, 1850 Lucas, Henry, and Williams Counties Robert Fulton (1765–1815), inventor of the steamboat 700442698000000000042,698 7002406789999900000406.78 sq mi
(70031054000000000001,054 km2)
Gallia County 053 Gallipolis April 30, 1803 Washington and Adams Counties Gaul, the ancient name of France 700430934000000000030,934 7002468780000000000468.78 sq mi
(70031214000000000001,214 km2)
Geauga County 055 Chardon March 1, 1806 Trumbull County A Native American word meaning "raccoon" 700493389000000000093,389 7002403660000000000403.66 sq mi
(70031045000000000001,045 km2)
Greene County 057 Xenia May 1, 1803 Hamilton and Ross Counties General Nathanael Greene (1742-1786), Revolutionary War officer 7005161573000000000161,573 7002414880000000000414.88 sq mi
(70031075000000000001,075 km2)
Guernsey County 059 Cambridge March 1, 1810 Belmont and Muskingum Counties Island of Guernsey, from where most of the settlers originated 700440087000000000040,087 7002521900000000000521.90 sq mi
(70031352000000000001,352 km2)
Hamilton County 061 Cincinnati January 2, 1790 One of the original counties Alexander Hamilton (1755/7-1804), Secretary of the Treasury when the county was organized 7005802374000000000802,374 7002407360000000000407.36 sq mi
(70031055000000000001,055 km2)
Hancock County 063 Findlay April 1, 1820 Logan County John Hancock (1737-1793), president of the Continental Congress 700474782000000000074,782 7002531350000000000531.35 sq mi
(70031376000000000001,376 km2)
Hardin County 065 Kenton April 1, 1820 Logan County General John Hardin (1753–1792), Revolutionary War officer 700432058000000000032,058 7002470290000000000470.29 sq mi
(70031218000000000001,218 km2)
Harrison County 067 Cadiz February 1, 1813 Jefferson and Tuscarawas Counties General William Henry Harrison (1773–1841), an officer of the War of 1812 and future U.S. President 700415864000000000015,864 7002403539999900000403.53 sq mi
(70031045000000000001,045 km2)
Henry County 069 Napoleon April 1, 1820 Shelby County Patrick Henry (1736–1799), Revolutionary War-era legislator, orator, and scholar 700428215000000000028,215 7002416500000000000416.50 sq mi
(70031079000000000001,079 km2)
Highland County 071 Hillsboro May 1, 1805 Ross, Adams, and Clermont Counties Descriptive of the county's terrain 700443589000000000043,589 7002553280000000000553.28 sq mi
(70031433000000000001,433 km2)
Hocking County 073 Logan March 1, 1818 Athens, Ross, and Fairfield Counties Possibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle" 700429380000000000029,380 7002422750000000000422.75 sq mi
(70031095000000000001,095 km2)
Holmes County 075 Millersburg January 20, 1824 Coshocton, Wayne, and Tuscarawas Counties Major Andrew Holmes (d. 1814), a War of 1812 officer 700442366000000000042,366 7002422990000000000422.99 sq mi
(70031096000000000001,096 km2)
Huron County 077 Norwalk March 7, 1809 Portage and Cuyahoga Counties Huron Indians 700459626000000000059,626 7002492690000000000492.69 sq mi
(70031276000000000001,276 km2)
Jackson County 079 Jackson March 1, 1816 Scioto, Gallia, Athens, and Ross Counties General Andrew Jackson (1767–1845) 700433225000000000033,225 7002420289999900000420.28 sq mi
(70031089000000000001,089 km2)
Jefferson County 081 Steubenville July 29, 1797 Washington County Thomas Jefferson (1743–1826), Vice President when the county was organized, future U.S. President, and principal author of the Declaration of Independence 700469709000000000069,709 7002409610000000000409.61 sq mi
(70031061000000000001,061 km2)
Knox County 083 Mount Vernon March 1, 1808 Fairfield County General Henry Knox, the first Secretary of War 700460921000000000060,921 7002527120000000000527.12 sq mi
(70031365000000000001,365 km2)
Lake County 085 Painesville March 6, 1840 Geauga and Cuyahoga Counties Named as such due to it bordering Lake Erie 7005230041000000000230,041 7002228210000000000228.21 sq mi
(7002591000000000000591 km2)
Lawrence County 087 Ironton December 21, 1815 Gallia and Scioto Counties Captain James Lawrence (1781–1813), naval hero in the War of 1812 700462450000000000062,450 7002454960000000000454.96 sq mi
(70031178000000000001,178 km2)
Licking County 089 Newark March 1, 1808 Fairfield County Named for the salt licks in the area 7005166492000000000166,492 7002686500000000000686.50 sq mi
(70031778000000000001,778 km2)
Logan County 091 Bellefontaine March 1, 1818 Champaign County General Benjamin Logan (c.1742–1802), who destroyed Shawnee Indian towns in the county 700445858000000000045,858 7002458440000000000458.44 sq mi
(70031187000000000001,187 km2)
Lorain County 093 Elyria December 26, 1822 Huron, Cuyahoga, and Medina Counties Province of Lorraine, France 7005301356000000000301,356 7002492500000000000492.50 sq mi
(70031276000000000001,276 km2)
Lucas County 095 Toledo June 20, 1835 Wood, Sandusky, and Huron Counties Robert Lucas (1781–1853), Governor of Ohio when the county was created 7005441815000000000441,815 7002340460000000000340.46 sq mi
(7002882000000000000882 km2)
Madison County 097 London March 1, 1810 Franklin County James Madison (1751-1836), fourth U.S. President 700443435000000000043,435 7002465440000000000465.44 sq mi
(70031205000000000001,205 km2)
Mahoning County 099 Youngstown March 1, 1846 Columbiana and Trumbull Counties Mahoning River, from a Native American word meaning "at the licks" 7005238823000000000238,823 7002415250000000000415.25 sq mi
(70031075000000000001,075 km2)
Marion County 101 Marion April 1, 1820 Delaware County General Francis Marion (1732-1795), lieutenant colonel in the Continental Army and later brigadier general in the American Revolutionary War. 700466501000000000066,501 7002403849999900000403.84 sq mi
(70031046000000000001,046 km2)
Medina County 103 Medina February 18, 1812 Portage County Medina, world-renowned religious site and capital of the Al Madinah Province in western Saudi Arabia 7005172332000000000172,332 7002421550000000000421.55 sq mi
(70031092000000000001,092 km2)
Meigs County 105 Pomeroy April 1, 1819 Gallia and Athens Counties Return Jonathan Meigs, Jr. (1764-1825), Governor of Ohio and Postmaster General at the time the county was organized 700423770000000000023,770 7002429420000000000429.42 sq mi
(70031112000000000001,112 km2)
Mercer County 107 Celina April 1, 1820 Darke County General Hugh Mercer (1726-1777), a Revolutionary War officer 700440814000000000040,814 7002463270000000000463.27 sq mi
(70031200000000000001,200 km2)
Miami County 109 Troy March 1, 1807 Montgomery County Miami Indians 7005102506000000000102,506 7002407040000000000407.04 sq mi
(70031054000000000001,054 km2)
Monroe County 111 Woodsfield January 29, 1813 Belmont, Washington, and Guernsey Counties James Monroe (1758-1831), Secretary of State when the county was organized and future U.S. President 700414642000000000014,642 7002455540000000000455.54 sq mi
(70031180000000000001,180 km2)
Montgomery County 113 Dayton May 1, 1803 Hamilton and Wayne Counties General Richard Montgomery (1738-1775), a Revolutionary War officer 7005535153000000000535,153 7002461680000000000461.68 sq mi
(70031196000000000001,196 km2)
Morgan County 115 McConnelsville December 29, 1817 Washington, Guernsey, and Muskingum Counties General Daniel Morgan (c.1735–1802), a Revolutionary War officer 700415054000000000015,054 7002417660000000000417.66 sq mi
(70031082000000000001,082 km2)
Morrow County 117 Mount Gilead March 1, 1848 Knox, Marion, Delaware, and Richland Counties Jeremiah Morrow (1771–1852), Governor of Ohio 700434827000000000034,827 7002406220000000000406.22 sq mi
(70031052000000000001,052 km2)
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"		 700486074000000000086,074 7002664630000000000664.63 sq mi
(70031721000000000001,721 km2)
Noble County 121 Caldwell April 1, 1851 Monroe, Washington, Morgan, and Guernsey Counties James Noble (1785–1831), an early settler and future U.S. Senator from Indiana 700414645000000000014,645 7002399000000000000399.00 sq mi
(70031033000000000001,033 km2)
Ottawa County 123 Port Clinton March 6, 1840 Erie, Sandusky, and Lucas Counties Named for the Ottawa Indians; Ottawa means "trader" in their language 700441428000000000041,428 7002254950000000000254.95 sq mi
(7002660000000000000660 km2)
Paulding County 125 Paulding April 1, 1820 Darke County John Paulding (1758–1818), captor of spy John André during the Revolutionary War 700419614000000000019,614 7002416260000000000416.26 sq mi
(70031078000000000001,078 km2)
Perry County 127 New Lexington March 1, 1818 Washington, Fairfield, and Muskingum Counties Commodore Oliver Hazard Perry (1785–1819), a naval officer of the War of 1812 700436058000000000036,058 7002409789999900000409.78 sq mi
(70031061000000000001,061 km2)
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"		 700455698000000000055,698 7002501910000000000501.91 sq mi
(70031300000000000001,300 km2)
Pike County 131 Waverly February 1, 1815 Ross, Scioto, and Adams Counties General Zebulon M. Pike (1779–1813), a Revolutionary War officer and discoverer of Pikes Peak in Colorado in 1806 700428709000000000028,709 7002441490000000000441.49 sq mi
(70031143000000000001,143 km2)
Portage County 133 Ravenna June 7, 1807 Trumbull County Derived from an Indian portage 7005161419000000000161,419 7002492390000000000492.39 sq mi
(70031275000000000001,275 km2)
Preble County 135 Eaton March 1, 1808 Montgomery and Butler Counties Captain Edward Preble (1761-1807), a Naval commander in the Revolutionary War 700442270000000000042,270 7002424800000000000424.80 sq mi
(70031100000000000001,100 km2)
Putnam County 137 Ottawa April 1, 1820 Shelby County General Israel Putnam (1718–1790), a Revolutionary War officer 700434499000000000034,499 7002483870000000000483.87 sq mi
(70031253000000000001,253 km2)
Richland County 139 Mansfield March 1, 1808 Fairfield County Descriptive of the soil in the area 7005124475000000000124,475 7002496880000000000496.88 sq mi
(70031287000000000001,287 km2)
Ross County 141 Chillicothe August 20, 1798 Adams and Washington Counties Named for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair 700478064000000000078,064 7002688410000000000688.41 sq mi
(70031783000000000001,783 km2)
Sandusky County 143 Fremont April 1, 1820 Huron County An Iroquois word meaning "cold water" 700460944000000000060,944 7002409180000000000409.18 sq mi
(70031060000000000001,060 km2)
Scioto County 145 Portsmouth May 1, 1803 Adams County Scioto River; Scioto is a Wyandot word meaning "deer" 700479499000000000079,499 7002612270000000000612.27 sq mi
(70031586000000000001,586 km2)
Seneca County 147 Tiffin April 1, 1820 Huron County Seneca Indians, who had a reservation in the county area at the time 700456745000000000056,745 7002550590000000000550.59 sq mi
(70031426000000000001,426 km2)
Shelby County 149 Sidney April 1, 1819 Miami County General Isaac Shelby (1750–1826), a Revolutionary War officer and Governor of Kentucky, 700449423000000000049,423 7002409270000000000409.27 sq mi
(70031060000000000001,060 km2)
Stark County 151 Canton February 13, 1808 Columbiana County General John Stark (1728–1822), a Revolutionary War officer; known as the "Hero of Bennington" for his exemplary service at the Battle of Bennington in 1777 7005375586000000000375,586 7002576140000000000576.14 sq mi
(70031492000000000001,492 km2)
Summit County 153 Akron March 3, 1840 Medina, Portage, and Stark Counties Derived from having the highest elevation along the Ohio Canal 7005541781000000000541,781 7002412720000000000412.72 sq mi
(70031069000000000001,069 km2)
Trumbull County 155 Warren July 10, 1800 Jefferson and Wayne Counties Jonathan Trumbull (1710-1785), Governor of Connecticut when the county was organized 7005210312000000000210,312 7002616480000000000616.48 sq mi
(70031597000000000001,597 km2)
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		 700492582000000000092,582 7002567580000000000567.58 sq mi
(70031470000000000001,470 km2)
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 700452300000000000052,300 7002436650000000000436.65 sq mi
(70031131000000000001,131 km2)
Van Wert County 161 Van Wert April 1, 1820 Darke County Isaac Van Wart (1760-1828), captor of spy John André during the Revolutionary War 700428744000000000028,744 7002410099999900000410.09 sq mi
(70031062000000000001,062 km2)
Vinton County 163 McArthur March 23, 1850 Athens, Gallia, Hocking, Jackson, and Ross Counties Samuel Finley Vinton (1792-1862), Ohio Statesman and U.S. Congressman 700413435000000000013,435 7002414080000000000414.08 sq mi
(70031072000000000001,072 km2)
Warren County 165 Lebanon May 1, 1803 Hamilton County General Joseph Warren (1741-1775), a Revolutionary War officer 7005212693000000000212,693 7002399630000000000399.63 sq mi
(70031035000000000001,035 km2)
Washington County 167 Marietta July 27, 1788 One of the original counties George Washington (1732–1799), commander of the Continental Army, president of the Constitutional Convention, and future U.S. President 700461778000000000061,778 7002635150000000000635.15 sq mi
(70031645000000000001,645 km2)
Wayne County 169 Wooster March 1, 1808 From non-county area General Anthony Wayne (1745–1796), a Revolutionary War officer 7005114520000000000114,520 7002555360000000000555.36 sq mi
(70031438000000000001,438 km2)
Williams County 171 Bryan April 1, 1820 Darke County David Williams (1754-1831), captor of spy John André during the Revolutionary War 700437642000000000037,642 7002421740000000000421.74 sq mi
(70031092000000000001,092 km2)
Wood County 173 Bowling Green April 1, 1820 Refactored from non-county territory Eleazer D. Wood (1783 -1814), founder of Fort Meigs 7005125488000000000125,488 7002617320000000000617.32 sq mi
(70031599000000000001,599 km2)
Wyandot County 175 Upper Sandusky February 3, 1845 Marion, Crawford, and Hardin Counties Wyandot Indians 700422615000000000022,615 7002405610000000000405.61 sq mi
(70031051000000000001,051 km2)

Read more about this topic:  List Of Counties In Ohio

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