List of counties in Ohio

Counties of Ohio

There are eighty-eight counties in the U.S. state of Ohio. The elected county officials include three commissioners, 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.

List of counties

County
FIPS Code
[1]
County Seat
[2]
Created
[2][3]
Origin
[4]
Meaning of name
[3][4]
Population
(2020)[2]
Area
[2]
Map
 
Adams County 001 West UnionJul 10, 1797Hamilton CountyJohn Adams (1735–1826), President of the United States when the county was organized 27,477 583.91 sq mi
(1,512 km2)
State map highlighting Adams County
Allen County 003 LimaMar 1, 1820Shelby CountyJohn Allen (1771/2-1813), a War of 1812 colonel[5] 102,206 404.43 sq mi
(1,047 km2)
State map highlighting Allen County
Ashland County 005 AshlandFeb 24, 1846Wayne, Richland, Huron, and Lorain CountiesAshland, home of U.S. Senator from Kentucky Henry Clay 52,447 424.37 sq mi
(1,099 km2)
State map highlighting Ashland County
Ashtabula County 007 JeffersonJun 7, 1807Trumbull and Geauga CountiesAshtabula River, which means "fish river" in an Algonquian language[6] 97,574 702.44 sq mi
(1,819 km2)
State map highlighting Ashtabula County
Athens County 009 AthensMar 1, 1805Washington CountyAthens in Greece 62,431 506.76 sq mi
(1,313 km2)
State map highlighting Athens County
Auglaize County 011 WapakonetaFeb 14, 1848Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert CountiesAuglaize River, which means "fallen timbers river" in the Shawnee language 46,422 401.25 sq mi
(1,039 km2)
State map highlighting Auglaize County
Belmont County 013 St. ClairsvilleSep 7, 1801Jefferson and Washington CountiesBelle monte, which means "beautiful mountain" in French 66,497 537.35 sq mi
(1,392 km2)
State map highlighting Belmont County
Brown County 015 GeorgetownMar 1, 1818Adams and Clermont CountiesGeneral Jacob Brown (1775–1828), an officer of the War of 1812 43,676 491.76 sq mi
(1,274 km2)
State map highlighting Brown County
Butler County 017 HamiltonMay 1, 1803Hamilton CountyGeneral Richard Butler (1743–1791), killed at the Battle of the Wabash 390,357 467.27 sq mi
(1,210 km2)
State map highlighting Butler County
Carroll County 019 CarrolltonJan 1, 1833Columbiana, Stark, Harrison, Jefferson, and Tuscarawas CountiesCharles Carroll (1737–1832), last surviving signer of the United States Declaration of Independence 26,721 394.67 sq mi
(1,022 km2)
State map highlighting Carroll County
Champaign County 021 UrbanaMar 1, 1805Greene and Franklin CountiesFrench for "a plain", describing the land in the area 38,714 428.56 sq mi
(1,110 km2)
State map highlighting Champaign County
Clark County 023 SpringfieldMar 1, 1818Champaign, Madison, and Greene CountiesGeneral George Rogers Clark (1752–1818), defeated the Shawnee Indians in a battle near the Springfield area 136,001 399.86 sq mi
(1,036 km2)
State map highlighting Clark County
Clermont County 025 BataviaDec 6, 1800Hamilton CountyFrench for "clear mountain" 208,601 451.99 sq mi
(1,171 km2)
State map highlighting Clermont County
Clinton County 027 WilmingtonMar 1, 1810Highland and Warren CountiesGeorge Clinton (1739–1812), vice-president when the county was organized 42,018 410.88 sq mi
(1,064 km2)
State map highlighting Clinton County
Columbiana County 029 LisbonMay 1, 1803Jefferson and Washington CountiesChristopher Columbus, European explorer of the Americas 101,877 532.46 sq mi
(1,379 km2)
State map highlighting Columbiana County
Coshocton County 031 CoshoctonJan 31, 1810Muskingum and Tuscarawas CountiesDelaware Indian word meaning "union of waters" 36,612 564.07 sq mi
(1,461 km2)
State map highlighting Coshocton County
Crawford County 033 BucyrusApr 1, 1820Delaware CountyColonel William Crawford (1732–1782), Revolutionary War officer 42,025 402.11 sq mi
(1,041 km2)
State map highlighting Crawford County
Cuyahoga County 035 ClevelandJun 7, 1807Geauga CountyCuyahoga River, which means "crooked river" in an Iroquoian language[7] 1,264,817 458.49 sq mi
(1,187 km2)
State map highlighting Cuyahoga County
Darke County 037 GreenvilleJan 3, 1809Miami CountyGeneral William Darke (1736–1801), Revolutionary War officer 51,881 599.80 sq mi
(1,553 km2)
State map highlighting Darke County
Defiance County 039 DefianceApr 7, 1845Williams, Henry, and Paulding CountiesFort Defiance, built in 1794 by General Anthony Wayne 38,286 411.16 sq mi
(1,065 km2)
State map highlighting Defiance County
Delaware County 041 DelawareApr 1, 1808Franklin CountyDelaware Indians 214,124 442.41 sq mi
(1,146 km2)
State map highlighting Delaware County
Erie County 043 SanduskyMar 15, 1838Huron and Sandusky CountiesErie Indians 75,622 254.88 sq mi
(660 km2)
State map highlighting Erie County
Fairfield County 045 LancasterDec 9, 1800Ross and Washington CountiesNamed for the beauty of its "fair fields" 158,921 505.11 sq mi
(1,308 km2)
State map highlighting Fairfield County
Fayette County 047 Washington Court HouseMar 1, 1810Ross and Highland CountiesGilbert du Motier, marquis de La Fayette, French military officer and aristocrat who participated in both the American and French revolutions 28,951 406.58 sq mi
(1,053 km2)
State map highlighting Fayette County
Franklin County 049 ColumbusApr 30, 1803Ross and Wayne CountiesBenjamin Franklin (1706–1791), Founding Father, author, printer, satirist, political theorist, scientist, inventor and statesman 1,323,807 539.87 sq mi
(1,398 km2)
State map highlighting Franklin County
Fulton County 051 WauseonApr 1, 1850Lucas, Henry, and Williams CountiesRobert Fulton (1765–1815), inventor of the steamboat[8] 42,713 406.78 sq mi
(1,054 km2)
State map highlighting Fulton County
Gallia County 053 GallipolisApr 30, 1803Washington and Adams CountiesGaul, the ancient name of France 29,220 468.78 sq mi
(1,214 km2)
State map highlighting Gallia County
Geauga County 055 ChardonMar 1, 1806Trumbull CountyA Native American word meaning "raccoon" 95,397 403.66 sq mi
(1,045 km2)
State map highlighting Geauga County
Greene County 057 XeniaMay 1, 1803Hamilton and Ross CountiesGeneral Nathanael Greene (1742–1786), Revolutionary War officer 167,966 414.88 sq mi
(1,075 km2)
State map highlighting Greene County
Guernsey County 059 CambridgeMar 1, 1810Belmont and Muskingum CountiesIsland of Guernsey, from where most of the settlers originated 38,438 521.90 sq mi
(1,352 km2)
State map highlighting Guernsey County
Hamilton County 061 CincinnatiJan 2, 1790One of the original countiesAlexander Hamilton (1755/7-1804), Secretary of the Treasury when the county was organized 830,639 407.36 sq mi
(1,055 km2)
State map highlighting Hamilton County
Hancock County 063 FindlayApr 1, 1820Logan CountyJohn Hancock (1737–1793), president of the Continental Congress 74,920 531.35 sq mi
(1,376 km2)
State map highlighting Hancock County
Hardin County 065 KentonApr 1, 1820Logan CountyGeneral John Hardin (1753–1792), Revolutionary War officer 30,696 470.29 sq mi
(1,218 km2)
State map highlighting Hardin County
Harrison County 067 CadizFeb 1, 1813Jefferson and Tuscarawas CountiesGeneral William Henry Harrison (1773–1841), an officer of the War of 1812 and future President of the United States 14,483 403.53 sq mi
(1,045 km2)
State map highlighting Harrison County
Henry County 069 NapoleonApr 1, 1820Shelby CountyPatrick Henry (1736–1799), Revolutionary War-era legislator, orator, and scholar 27,662 416.50 sq mi
(1,079 km2)
State map highlighting Henry County
Highland County 071 HillsboroMay 1, 1805Ross, Adams, and Clermont CountiesDescriptive of the county's terrain 43,317 553.28 sq mi
(1,433 km2)
State map highlighting Highland County
Hocking County 073 LoganMar 1, 1818Athens, Ross, and Fairfield CountiesPossibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle" 28,050 422.75 sq mi
(1,095 km2)
State map highlighting Hocking County
Holmes County 075 MillersburgJan 20, 1824Coshocton, Wayne, and Tuscarawas CountiesMajor Andrew Holmes (died 1814), a War of 1812 officer 44,223 422.99 sq mi
(1,096 km2)
State map highlighting Holmes County
Huron County 077 NorwalkMar 7, 1809Portage and Cuyahoga CountiesHuron Indians 58,565 492.69 sq mi
(1,276 km2)
State map highlighting Huron County
Jackson County 079 JacksonMar 1, 1816Scioto, Gallia, Athens, and Ross CountiesGeneral Andrew Jackson (1767–1845), future President of the United States 32,653 420.28 sq mi
(1,089 km2)
State map highlighting Jackson County
Jefferson County 081 SteubenvilleJul 29, 1797Washington CountyThomas Jefferson (1743–1826), Vice President when the county was organized, future President of the United States, and principal author of the Declaration of Independence 65,249 409.61 sq mi
(1,061 km2)
State map highlighting Jefferson County
Knox County 083 Mount VernonMar 1, 1808Fairfield CountyGeneral Henry Knox, the first Secretary of War 62,721 527.12 sq mi
(1,365 km2)
State map highlighting Knox County
Lake County 085 PainesvilleMar 6, 1840Geauga and Cuyahoga CountiesIts location on Lake Erie 232,603 228.21 sq mi
(591 km2)
State map highlighting Lake County
Lawrence County 087 IrontonDec 21, 1815Gallia and Scioto CountiesCaptain James Lawrence (1781–1813), naval hero in the War of 1812 58,240 454.96 sq mi
(1,178 km2)
State map highlighting Lawrence County
Licking County 089 NewarkMar 1, 1808Fairfield CountyLicking River, named for the salt licks in the area, or an English pronunciation of the Lenape word W'li/'ik'/nk meaning "where the flood waters recede"[9] 178,519 686.50 sq mi
(1,778 km2)
State map highlighting Licking County
Logan County 091 BellefontaineMar 1, 1818Champaign CountyGeneral Benjamin Logan (c. 1742 – 1802), who destroyed Shawnee Indian towns in the county 46,150 458.44 sq mi
(1,187 km2)
State map highlighting Logan County
Lorain County 093 ElyriaDec 26, 1822Huron, Cuyahoga, and Medina CountiesProvince of Lorraine, France 312,964 492.50 sq mi
(1,276 km2)
State map highlighting Lorain County
Lucas County 095 ToledoJun 20, 1835Wood, Sandusky, and Huron CountiesRobert Lucas (1781–1853), Governor of Ohio when the county was created 431,279 340.46 sq mi
(882 km2)
State map highlighting Lucas County
Madison County 097 LondonMar 1, 1810Franklin CountyJames Madison (1751–1836), fourth President of the United States 43,824 465.44 sq mi
(1,205 km2)
State map highlighting Madison County
Mahoning County 099 YoungstownMar 1, 1846Columbiana and Trumbull CountiesMahoning River, from a Lenape word meaning "at the licks" 228,614 415.25 sq mi
(1,075 km2)
State map highlighting Mahoning County
Marion County 101 MarionApr 1, 1820Delaware CountyGeneral Francis Marion (1732–1795), lieutenant colonel in the Continental Army and later brigadier general in the American Revolutionary War 65,359 403.84 sq mi
(1,046 km2)
State map highlighting Marion County
Medina County 103 MedinaFeb 18, 1812Portage CountyMedina, world-renowned religious site in western Saudi Arabia 182,470 423 sq mi
(1,096 km2)
State map highlighting Medina County
Meigs County 105 PomeroyApr 1, 1819Gallia and Athens CountiesReturn Jonathan Meigs, Jr. (1764–1825), Governor of Ohio and Postmaster General at the time the county was organized 22,210 429.42 sq mi
(1,112 km2)
State map highlighting Meigs County
Mercer County 107 CelinaApr 1, 1820Darke CountyGeneral Hugh Mercer (1726–1777), a Revolutionary War officer 42,528 463.27 sq mi
(1,200 km2)
State map highlighting Mercer County
Miami County 109 TroyMar 1, 1807Montgomery CountyMiami Indians 108,774 407.04 sq mi
(1,054 km2)
State map highlighting Miami County
Monroe County 111 WoodsfieldJan 29, 1813Belmont, Washington, and Guernsey CountiesJames Monroe (1758–1831), Secretary of State when the county was organized and future President of the United States 13,385 455.54 sq mi
(1,180 km2)
State map highlighting Monroe County
Montgomery County 113 DaytonMay 1, 1803Hamilton and Wayne CountiesGeneral Richard Montgomery (1738–1775), a Revolutionary War officer 537,309 461.68 sq mi
(1,196 km2)
State map highlighting Montgomery County
Morgan County 115 McConnelsvilleDec 29, 1817Washington, Guernsey, and Muskingum CountiesGeneral Daniel Morgan (c. 1735 – 1802), a Revolutionary War officer 13,802 417.66 sq mi
(1,082 km2)
State map highlighting Morgan County
Morrow County 117 Mount GileadMar 1, 1848Knox, Marion, Delaware, and Richland CountiesJeremiah Morrow (1771–1852), Governor of Ohio 34,950 406.22 sq mi
(1,052 km2)
State map highlighting Morrow County
Muskingum County 119 ZanesvilleMar 1, 1804[10][11]Washington and Fairfield CountiesAn Indian word meaning "A town by the river" or "by the river side" 86,410 664.63 sq mi
(1,721 km2)
State map highlighting Muskingum County
Noble County 121 CaldwellApr 1, 1851Monroe, Washington, Morgan, and Guernsey CountiesWarren P. Noble, an early settler in the area[12] 14,115 399.00 sq mi
(1,033 km2)
State map highlighting Noble County
Ottawa County 123 Port ClintonMar 6, 1840Erie, Sandusky, and Lucas CountiesNamed for the Ottawa Indians; Ottawa means "trader" in their language 40,364 254.95 sq mi
(660 km2)
State map highlighting Ottawa County
Paulding County 125 PauldingApr 1, 1820Darke CountyJohn Paulding (1758–1818), captor of spy John André during the Revolutionary War 18,806 416.26 sq mi
(1,078 km2)
State map highlighting Paulding County
Perry County 127 New LexingtonMar 1, 1818Washington, Fairfield, and Muskingum CountiesCommodore Oliver Hazard Perry (1785–1819), a naval officer of the War of 1812 35,408 409.78 sq mi
(1,061 km2)
State map highlighting Perry County
Pickaway County 129 CirclevilleMar 1, 1810Ross, Fairfield, and Franklin CountiesA misspelling of the Piqua tribe, a branch of the Shawnee 58,539 501.91 sq mi
(1,300 km2)
State map highlighting Pickaway County
Pike County 131 WaverlyFeb 1, 1815Ross, Scioto, and Adams CountiesGeneral Zebulon M. Pike (1779–1813), a War of 1812 officer and discoverer of Pikes Peak in Colorado in 1806 27,088 441.49 sq mi
(1,143 km2)
State map highlighting Pike County
Portage County 133 RavennaJun 7, 1807Trumbull CountyDerived from an Indian portage 161,791 492.39 sq mi
(1,275 km2)
State map highlighting Portage County
Preble County 135 EatonMar 1, 1808Montgomery and Butler CountiesCaptain Edward Preble (1761–1807), a Naval commander in the Revolutionary War 40,999 424.80 sq mi
(1,100 km2)
State map highlighting Preble County
Putnam County 137 OttawaApr 1, 1820Shelby CountyGeneral Israel Putnam (1718–1790), a Revolutionary War officer 34,451 483.87 sq mi
(1,253 km2)
State map highlighting Putnam County
Richland County 139 MansfieldMar 1, 1808Fairfield CountyDescriptive of the soil in the area 124,936 496.88 sq mi
(1,287 km2)
State map highlighting Richland County
Ross County 141 ChillicotheAug 20, 1798Adams and Washington CountiesNamed for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair 77,093 688.41 sq mi
(1,783 km2)
State map highlighting Ross County
Sandusky County 143 FremontApr 1, 1820Huron CountyAn Iroquois word meaning "cold water" 58,896 409.18 sq mi
(1,060 km2)
State map highlighting Sandusky County
Scioto County 145 PortsmouthMay 1, 1803Adams CountyScioto River; Scioto is a Wyandot Indian word meaning "deer" 74,008 612.27 sq mi
(1,586 km2)
State map highlighting Scioto County
Seneca County 147 TiffinApr 1, 1820Huron CountySeneca Indians, who had a reservation in the county area at the time 55,069 550.59 sq mi
(1,426 km2)
State map highlighting Seneca County
Shelby County 149 SidneyApr 1, 1819Miami CountyGeneral Isaac Shelby (1750–1826), a Revolutionary War officer and Governor of Kentucky 48,230 409.27 sq mi
(1,060 km2)
State map highlighting Shelby County
Stark County 151 CantonFeb 13, 1808Columbiana CountyGeneral 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 374,853 576.14 sq mi
(1,492 km2)
State map highlighting Stark County
Summit County 153 AkronMar 3, 1840Medina, Portage, and Stark CountiesIts location at the highest elevation along the Ohio and Erie Canal 540,428 419.38 sq mi
(1,086 km2)
State map highlighting Summit County
Trumbull County 155 WarrenJul 10, 1800Jefferson and Wayne CountiesJonathan Trumbull (1710–1785), Governor of Connecticut when the county was organized 201,977 616.48 sq mi
(1,597 km2)
State map highlighting Trumbull County
Tuscarawas County 157 New PhiladelphiaMar 15, 1808Muskingum CountyTuscarawas River, meaning "open mouth river"
or
the Tuscarawas tribe who lived on the river
93,263 567.58 sq mi
(1,470 km2)
State map highlighting Tuscarawas County
Union County 159 MarysvilleApr 1, 1820Delaware, Franklin, Logan, and Madison CountiesIt was formed from a union of four counties 62,784 436.65 sq mi
(1,131 km2)
State map highlighting Union County
Van Wert County 161 Van WertApr 1, 1820Darke CountyIsaac Van Wart (1760–1828), captor of spy John André during the Revolutionary War 28,931 410.09 sq mi
(1,062 km2)
State map highlighting Van Wert County
Vinton County 163 McArthurMar 23, 1850Athens, Gallia, Hocking, Jackson, and Ross CountiesSamuel Finley Vinton (1792–1862), Ohio Statesman and U.S. Congressman 12,800 414.08 sq mi
(1,072 km2)
State map highlighting Vinton County
Warren County 165 LebanonMay 1, 1803Hamilton CountyGeneral Joseph Warren (1741–1775), a Revolutionary War officer 242,337 399.63 sq mi
(1,035 km2)
State map highlighting Warren County
Washington County 167 MariettaJul 27, 1788One of the original countiesGeorge Washington (1732–1799), commander of the Continental Army, president of the Constitutional Convention, and future President of the United States 59,771 635.15 sq mi
(1,645 km2)
State map highlighting Washington County
Wayne County 169 WoosterMar 1, 1808From non-county areaGeneral Anthony Wayne (1745–1796), a Revolutionary War officer 116,894 555.36 sq mi
(1,438 km2)
State map highlighting Wayne County
Williams County 171 BryanApr 1, 1820Darke CountyDavid Williams (1754–1831), captor of spy John André during the Revolutionary War 37,102 421.74 sq mi
(1,092 km2)
State map highlighting Williams County
Wood County 173 Bowling GreenApr 1, 1820Refactored from non-county territoryEleazer D. Wood (1783–1814), founder of Fort Meigs 132,248 617.32 sq mi
(1,599 km2)
State map highlighting Wood County
Wyandot County 175 Upper SanduskyFeb 3, 1845Marion, Crawford, and Hardin CountiesWyandot Indians 21,900 405.61 sq mi
(1,051 km2)
State map highlighting Wyandot County

References

  1. ↑ "County FIPS Code Listing for the State of OHIO". United States Environmental Protection Agency. Retrieved July 9, 2016.
  2. 1 2 3 4 National Association of Counties. "NACo County Explorer". Retrieved May 3, 2024.
  3. 1 2 "Federal Roster: Counties of Ohio, Derivation of Name and Date of Erection" (PDF). Archived from the original (PDF) on July 12, 2013. Retrieved July 21, 2013.
  4. 1 2 "Ohio Genealogy Clickable County Map". Archived from the original on 2007-11-18. Retrieved 2007-07-25.
  5. ↑ Resolution of 111th Ohio General Assembly designating John Allen as the person for which Allen County was named.
  6. ↑ Ashtabula, Encyclopædia Britannica, 2007. Accessed 2007-11-19.
  7. ↑ Cuyahoga River, Encyclopædia Britannica, 2007. Accessed 2007-11-19.
  8. ↑ About Fulton County
  9. ↑ Mahr, August C. (April 1957). "Indian River and Place Names in Ohio". Ohio Archaeological and Historical Quarterly. 66 (2): 146–148.
  10. ↑ Downes, p. 368.
  11. ↑ Taylor & Taylor, p. 40.
  12. ↑ "Noble County data". Ohio State University Extension Data Center. Archived from the original on 2008-02-13. Retrieved 2007-04-28.