List of counties in Ohio

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Counties of Ohio

The U.S. state of Ohio comprises 88 counties. Nine of them existed at the time of the Ohio Constitutional Convention in 1802.[1] A tenth county, Wayne, was established on August 15, 1796, and encompassed most of Northwest Ohio.[2] During the Convention, the county was opposed to statehood, and was not only left out of the Convention, but dissolved; the current Wayne County is unrelated to the original.[1]

The Ohio Constitution allows counties to set up a charter government as many cities and villages do,[3] but only Summit County and Cuyahoga County have done so,[4] the latter having been approved by voters in November 2009.[5] 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 and Cuyahoga County have chosen an alternate structure, while all of the other counties use the default structure. 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.[citation needed]

Population figures are based on the 2010 United States Census. The population of Ohio was 11,536,502 at that time, an increase of 1.6% from 2000. The average population of Ohio's counties was 131,096; Cuyahoga County was the most populous (1,280,122) and Vinton County was the least (13,435). The average land area is 464 sq mi (1,200 km2). The largest county by area is Ashtabula County at 702.44 sq mi (1,819.3 km2) and the smallest is Lake County at 228.21 sq mi (591.1 km2). The total area of the state is 40,860.69 sq mi (105,828.7 km2).[6][7]

The Federal Information Processing Standard (FIPS) is used by the U.S. government to uniquely identify counties, and is provided for each entry. These codes link to the United States Census Bureau's "quick facts" for each county. Ohio's FIPS code of 39 is used to distinguish from counties in other states. For example, Adams County's unique nationwide identifier is 39001.[8]

List of counties[edit]

FIPS code
County Seat
Adams County001West UnionJuly 10, 1797Hamilton CountyJohn Adams (1735–1826), second President of the United States and executive when the county was organized28,550583.91 sq mi
(1,512 km2)
State map highlighting Adams County
Allen County003LimaMarch 1, 1820Shelby CountyJohn Allen (1771/2–1813), a War of 1812 colonel[12]106,331404.43 sq mi
(1,047 km2)
State map highlighting Allen County
Ashland County005AshlandFebruary 24, 1846Wayne, Richland, Huron, and Lorain CountiesAshland, home of U.S. Senator from Kentucky Henry Clay.53,139424.37 sq mi
(1,099 km2)
State map highlighting Ashland County
Ashtabula County007JeffersonJune 7, 1807Trumbull and Geauga CountiesAshtabula River, which means "fish river" in an Algonquian language[13]101,497702.44 sq mi
(1,819 km2)
State map highlighting Ashtabula County
Athens County009AthensMarch 1, 1805Washington CountyAthens, Greece64,757506.76 sq mi
(1,313 km2)
State map highlighting Athens County
Auglaize County011WapakonetaFebruary 14, 1848Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert CountiesAuglaize River, which means "fallen timbers river" to the Shawnee45,949401.25 sq mi
(1,039 km2)
State map highlighting Auglaize County
Belmont County013St. ClairsvilleSeptember 7, 1801Jefferson and Washington CountiesBelle monte, which means "beautiful mountain" in French70,400537.35 sq mi
(1,392 km2)
State map highlighting Belmont County
Brown County015GeorgetownMarch 1, 1818Adams and Clermont CountiesGeneral Jacob Brown (1775–1828), an officer of the War of 181244,846491.76 sq mi
(1,274 km2)
State map highlighting Brown County
Butler County017HamiltonMay 1, 1803Hamilton CountyGeneral Richard Butler (1743–91), killed at the Battle of the Wabash368,130467.27 sq mi
(1,210 km2)
State map highlighting Butler County
Carroll County019CarrolltonJanuary 1, 1833Columbiana, Stark, Harrison, Jefferson, and Tuscarawas CountiesCharles Carroll (1737–1832), last surviving signer of the United States Declaration of Independence28,836394.67 sq mi
(1,022 km2)
State map highlighting Carroll County
Champaign County021UrbanaMarch 1, 1805Greene and Franklin CountiesFrench for "a plain", describing the land in the area40,097428.56 sq mi
(1,110 km2)
State map highlighting Champaign County
Clark County023SpringfieldMarch 1, 1818Champaign, Madison, and Greene CountiesGeneral George Rogers Clark (1752–1818), defeated the Shawnee Indians in a battle near the Springfield area138,333399.86 sq mi
(1,036 km2)
State map highlighting Clark County
Clermont County025BataviaDecember 6, 1800Hamilton CountyFrench for "clear mountain"197,363451.99 sq mi
(1,171 km2)
State map highlighting Clermont County
Clinton County027WilmingtonMarch 1, 1810Highland and Warren CountiesGeorge Clinton (1739–1812), vice-president when the county was organized42,040410.88 sq mi
(1,064 km2)
State map highlighting Clinton County
Columbiana County029LisbonMay 1, 1803Jefferson and Washington CountiesDerived from the words Christopher Columbus, European explorer of the Americas107,841532.46 sq mi
(1,379 km2)
State map highlighting Columbiana County
Coshocton County031CoshoctonJanuary 31, 1810Muskingum and Tuscarawas CountiesDelaware Indian word meaning "union of waters"36,901564.07 sq mi
(1,461 km2)
State map highlighting Coshocton County
Crawford County033BucyrusApril 1, 1820Delaware CountyColonel William Crawford (1732–82), Revolutionary War officer43,784402.11 sq mi
(1,041 km2)
State map highlighting Crawford County
Cuyahoga County035ClevelandJune 7, 1807Geauga CountyCuyahoga River, which means "crooked river" in an Iroquoian language[14]1,280,122458.49 sq mi
(1,187 km2)
State map highlighting Cuyahoga County
Darke County037GreenvilleJanuary 3, 1809Miami CountyGeneral William Darke (1736–1801), Revolutionary War officer52,959599.80 sq mi
(1,553 km2)
State map highlighting Darke County
Defiance County039DefianceApril 7, 1845Williams, Henry, and Paulding CountiesFort Defiance, built in 1794 by General Anthony Wayne39,037411.16 sq mi
(1,065 km2)
State map highlighting Defiance County
Delaware County041DelawareApril 1, 1808Franklin CountyDelaware Indians174,214442.41 sq mi
(1,146 km2)
State map highlighting Delaware County
Erie County043SanduskyMarch 15, 1838Huron and Sandusky CountiesErie Indians77,079254.88 sq mi
(660 km2)
State map highlighting Erie County
Fairfield County045LancasterDecember 9, 1800Ross and Washington CountiesNamed for the beauty of its "fair fields"146,156505.11 sq mi
(1,308 km2)
State map highlighting Fairfield County
Fayette County047Washington Court HouseMarch 1, 1810Ross and Highland CountiesMarquis de Lafayette, French military officer and aristocrat who participated in both the American and French revolutions.29,030406.58 sq mi
(1,053 km2)
State map highlighting Fayette County
Franklin County049ColumbusApril 30, 1803Ross and Wayne CountiesBenjamin Franklin (1706–91), Founding Father, author, printer, political theorist, scientist, inventor, and statesman1,163,414539.87 sq mi
(1,398 km2)
State map highlighting Franklin County
Fulton County051WauseonApril 1, 1850Lucas, Henry, and Williams CountiesRobert Fulton (1765–1815), inventor of the steamboat42,698406.78 sq mi
(1,054 km2)
State map highlighting Fulton County
Gallia County053GallipolisApril 30, 1803Washington and Adams CountiesGaul, the ancient name of France30,934468.78 sq mi
(1,214 km2)
State map highlighting Gallia County
Geauga County055ChardonMarch 1, 1806Trumbull CountyA Native American word meaning "raccoon"93,389403.66 sq mi
(1,045 km2)
State map highlighting Geauga County
Greene County057XeniaMay 1, 1803Hamilton and Ross CountiesGeneral Nathanael Greene (1742–86), Revolutionary War officer161,573414.88 sq mi
(1,075 km2)
State map highlighting Greene County
Guernsey County059CambridgeMarch 1, 1810Belmont and Muskingum CountiesIsland of Guernsey, from where most of the settlers originated40,087521.90 sq mi
(1,352 km2)
State map highlighting Guernsey County
Hamilton County061CincinnatiJanuary 2, 1790One of the original countiesAlexander Hamilton (1755/7–1804), Secretary of the Treasury when the county was organized802,374407.36 sq mi
(1,055 km2)
State map highlighting Hamilton County
Hancock County063FindlayApril 1, 1820Logan CountyJohn Hancock (1737–93), president of the Continental Congress74,782531.35 sq mi
(1,376 km2)
State map highlighting Hancock County
Hardin County065KentonApril 1, 1820Logan CountyGeneral John Hardin (1753–92), Revolutionary War officer32,058470.29 sq mi
(1,218 km2)
State map highlighting Hardin County
Harrison County067CadizFebruary 1, 1813Jefferson and Tuscarawas CountiesGeneral William Henry Harrison (1773–1841), an officer of the War of 1812 and future President of the United States15,864403.53 sq mi
(1,045 km2)
State map highlighting Harrison County
Henry County069NapoleonApril 1, 1820Shelby CountyPatrick Henry (1736–99), Revolutionary War-era legislator, orator, and scholar28,215416.50 sq mi
(1,079 km2)
State map highlighting Henry County
Highland County071HillsboroMay 1, 1805Ross, Adams, and Clermont CountiesDescriptive of the county's terrain43,589553.28 sq mi
(1,433 km2)
State map highlighting Highland County
Hocking County073LoganMarch 1, 1818Athens, Ross, and Fairfield CountiesPossibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle"29,380422.75 sq mi
(1,095 km2)
State map highlighting Hocking County
Holmes County075MillersburgJanuary 20, 1824Coshocton, Wayne, and Tuscarawas CountiesMajor Andrew Holmes (d. 1814), a War of 1812 officer42,366422.99 sq mi
(1,096 km2)
State map highlighting Holmes County
Huron County077NorwalkMarch 7, 1809Portage and Cuyahoga CountiesHuron Indians59,626492.69 sq mi
(1,276 km2)
State map highlighting Huron County
Jackson County079JacksonMarch 1, 1816Scioto, Gallia, Athens, and Ross CountiesGeneral Andrew Jackson (1767–1845)33,225420.28 sq mi
(1,089 km2)
State map highlighting Jackson County
Jefferson County081SteubenvilleJuly 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 Independence69,709409.61 sq mi
(1,061 km2)
State map highlighting Jefferson County
Knox County083Mount VernonMarch 1, 1808Fairfield CountyGeneral Henry Knox, the first Secretary of War60,921527.12 sq mi
(1,365 km2)
State map highlighting Knox County
Lake County085PainesvilleMarch 6, 1840Geauga and Cuyahoga CountiesNamed as such due to it bordering Lake Erie230,041228.21 sq mi
(591 km2)
State map highlighting Lake County
Lawrence County087IrontonDecember 21, 1815Gallia and Scioto CountiesCaptain James Lawrence (1781–1813), naval hero in the War of 181262,450454.96 sq mi
(1,178 km2)
State map highlighting Lawrence County
Licking County089NewarkMarch 1, 1808Fairfield CountyNamed for the salt licks in the area166,492686.50 sq mi
(1,778 km2)
State map highlighting Licking County
Logan County091BellefontaineMarch 1, 1818Champaign CountyGeneral Benjamin Logan (c.1742–1802) , who destroyed Shawnee Indian towns in the county45,858458.44 sq mi
(1,187 km2)
State map highlighting Logan County
Lorain County093ElyriaDecember 26, 1822Huron, Cuyahoga, and Medina CountiesProvince of Lorraine, France301,356492.50 sq mi
(1,276 km2)
State map highlighting Lorain County
Lucas County095ToledoJune 20, 1835Wood, Sandusky, and Huron CountiesRobert Lucas (1781–1853), Governor of Ohio when the county was created441,815340.46 sq mi
(882 km2)
State map highlighting Lucas County
Madison County097LondonMarch 1, 1810Franklin CountyJames Madison (1751–1836), fourth President of the United States43,435465.44 sq mi
(1,205 km2)
State map highlighting Madison County
Mahoning County099YoungstownMarch 1, 1846Columbiana and Trumbull CountiesMahoning River, from a Native American word meaning "at the licks"238,823415.25 sq mi
(1,075 km2)
State map highlighting Mahoning County
Marion County101MarionApril 1, 1820Delaware CountyGeneral Francis Marion (1732–95), lieutenant colonel in the Continental Army and later brigadier general in the American Revolutionary War.66,501403.84 sq mi
(1,046 km2)
State map highlighting Marion County
Medina County103MedinaFebruary 18, 1812Portage CountyMedina, world-renowned religious site and capital of the Al Madinah Province in western Saudi Arabia172,332421.55 sq mi
(1,092 km2)
State map highlighting Medina County
Meigs County105PomeroyApril 1, 1819Gallia and Athens CountiesReturn Jonathan Meigs, Jr. (1764–1825), Governor of Ohio and Postmaster General at the time the county was organized23,770429.42 sq mi
(1,112 km2)
State map highlighting Meigs County
Mercer County107CelinaApril 1, 1820Darke CountyGeneral Hugh Mercer (1726–77), a Revolutionary War officer40,814463.27 sq mi
(1,200 km2)
State map highlighting Mercer County
Miami County109TroyMarch 1, 1807Montgomery CountyMiami Indians102,506407.04 sq mi
(1,054 km2)
State map highlighting Miami County
Monroe County111WoodsfieldJanuary 29, 1813Belmont, Washington, and Guernsey CountiesJames Monroe (1758–1831), Secretary of State when the county was organized and future President of the United States14,642455.54 sq mi
(1,180 km2)
State map highlighting Monroe County
Montgomery County113DaytonMay 1, 1803Hamilton and Wayne CountiesGeneral Richard Montgomery (1738–75), a Revolutionary War officer535,153461.68 sq mi
(1,196 km2)
State map highlighting Montgomery County
Morgan County115McConnelsvilleDecember 29, 1817Washington, Guernsey, and Muskingum CountiesGeneral Daniel Morgan (c.1735–1802), a Revolutionary War officer15,054417.66 sq mi
(1,082 km2)
State map highlighting Morgan County
Morrow County117Mount GileadMarch 1, 1848Knox, Marion, Delaware, and Richland CountiesJeremiah Morrow (1771–1852), Governor of Ohio34,827406.22 sq mi
(1,052 km2)
State map highlighting Morrow County
Muskingum County119ZanesvilleMarch 1, 1804[15][16]Washington and Fairfield CountiesA Native American word meaning "A town by the river"
a Native American word meaning "by the river side"
86,074664.63 sq mi
(1,721 km2)
State map highlighting Muskingum County
Noble County121CaldwellApril 1, 1851Monroe, Washington, Morgan, and Guernsey CountiesJames Noble (1785–1831), an early settler and future U.S. Senator from Indiana14,645399.00 sq mi
(1,033 km2)
State map highlighting Noble County
Ottawa County123Port ClintonMarch 6, 1840Erie, Sandusky, and Lucas CountiesNamed for the Ottawa Indians; Ottawa means "trader" in their language41,428254.95 sq mi
(660 km2)
State map highlighting Ottawa County
Paulding County125PauldingApril 1, 1820Darke CountyJohn Paulding (1758–1818), captor of spy John André during the Revolutionary War19,614416.26 sq mi
(1,078 km2)
State map highlighting Paulding County
Perry County127New LexingtonMarch 1, 1818Washington, Fairfield, and Muskingum CountiesCommodore Oliver Hazard Perry (1785–1819), a naval officer of the War of 181236,058409.78 sq mi
(1,061 km2)
State map highlighting Perry County
Pickaway County129CirclevilleMarch 1, 1810Ross, Fairfield, and Franklin CountiesA misspelling of the Piqua tribe, a branch of the Shawnee
A variant of a Native American word "Piqua"
55,698501.91 sq mi
(1,300 km2)
State map highlighting Pickaway County
Pike County131WaverlyFebruary 1, 1815Ross, Scioto, and Adams CountiesGeneral Zebulon M. Pike (1779–1813), a Revolutionary War officer and discoverer of Pikes Peak in Colorado in 180628,709441.49 sq mi
(1,143 km2)
State map highlighting Pike County
Portage County133RavennaJune 7, 1807Trumbull CountyDerived from an Indian portage161,419492.39 sq mi
(1,275 km2)
State map highlighting Portage County
Preble County135EatonMarch 1, 1808Montgomery and Butler CountiesCaptain Edward Preble (1761–1807), a Naval commander in the Revolutionary War42,270424.80 sq mi
(1,100 km2)
State map highlighting Preble County
Putnam County137OttawaApril 1, 1820Shelby CountyGeneral Israel Putnam (1718–1790), a Revolutionary War officer34,499483.87 sq mi
(1,253 km2)
State map highlighting Putnam County
Richland County139MansfieldMarch 1, 1808Fairfield CountyDescriptive of the soil in the area124,475496.88 sq mi
(1,287 km2)
State map highlighting Richland County
Ross County141ChillicotheAugust 20, 1798Adams and Washington CountiesNamed for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair78,064688.41 sq mi
(1,783 km2)
State map highlighting Ross County
Sandusky County143FremontApril 1, 1820Huron CountyAn Iroquois word meaning "cold water"60,944409.18 sq mi
(1,060 km2)
State map highlighting Sandusky County
Scioto County145PortsmouthMay 1, 1803Adams CountyScioto River; Scioto is a Wyandot word meaning "deer"79,499612.27 sq mi
(1,586 km2)
State map highlighting Scioto County
Seneca County147TiffinApril 1, 1820Huron CountySeneca Indians, who had a reservation in the county area at the time56,745550.59 sq mi
(1,426 km2)
State map highlighting Seneca County
Shelby County149SidneyApril 1, 1819Miami CountyGeneral Isaac Shelby (1750–1826), a Revolutionary War officer and Governor of Kentucky,49,423409.27 sq mi
(1,060 km2)
State map highlighting Shelby County
Stark County151CantonFebruary 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 1777375,586576.14 sq mi
(1,492 km2)
State map highlighting Stark County
Summit County153AkronMarch 3, 1840Medina, Portage, and Stark CountiesDerived from having the highest elevation along the Ohio Canal541,781419.38 sq mi
(1,086 km2)
State map highlighting Summit County
Trumbull County155WarrenJuly 10, 1800Jefferson and Wayne CountiesJonathan Trumbull (1710–85), Governor of Connecticut when the county was organized210,312616.48 sq mi
(1,597 km2)
State map highlighting Trumbull County
Tuscarawas County157New PhiladelphiaMarch 15, 1808Muskingum CountyTuscarawas River, meaning "open mouth river"
the Tuscarawas tribe who lived on the river
92,582567.58 sq mi
(1,470 km2)
State map highlighting Tuscarawas County
Union County159MarysvilleApril 1, 1820Delaware, Franklin, Logan, and Madison CountiesNamed as such due to it formed by a union of four counties52,300436.65 sq mi
(1,131 km2)
State map highlighting Union County
Van Wert County161Van WertApril 1, 1820Darke CountyIsaac Van Wart (1760–1828), captor of spy John André during the Revolutionary War28,744410.09 sq mi
(1,062 km2)
State map highlighting Van Wert County
Vinton County163McArthurMarch 23, 1850Athens, Gallia, Hocking, Jackson, and Ross CountiesSamuel Finley Vinton (1792–1862), Ohio Statesman and U.S. Congressman13,435414.08 sq mi
(1,072 km2)
State map highlighting Vinton County
Warren County165LebanonMay 1, 1803Hamilton CountyGeneral Joseph Warren (1741–75), a Revolutionary War officer212,693399.63 sq mi
(1,035 km2)
State map highlighting Warren County
Washington County167MariettaJuly 27, 1788One of the original countiesGeorge Washington (1732–99), commander of the Continental Army, president of the Constitutional Convention, and future President of the United States61,778635.15 sq mi
(1,645 km2)
State map highlighting Washington County
Wayne County169WoosterMarch 1, 1808From non-county areaGeneral Anthony Wayne (1745–96), a Revolutionary War officer114,520555.36 sq mi
(1,438 km2)
State map highlighting Wayne County
Williams County171BryanApril 1, 1820Darke CountyDavid Williams (1754–1831), captor of spy John André during the Revolutionary War37,642421.74 sq mi
(1,092 km2)
State map highlighting Williams County
Wood County173Bowling GreenApril 1, 1820Refactored from non-county territoryEleazer D. Wood (1783–1814), founder of Fort Meigs125,488617.32 sq mi
(1,599 km2)
State map highlighting Wood County
Wyandot County175Upper SanduskyFebruary 3, 1845Marion, Crawford, and Hardin CountiesWyandot Indians22,615405.61 sq mi
(1,051 km2)
State map highlighting Wyandot County

See also[edit]


  1. ^ a b Laning, J.F. (1896). "The Evolution of Ohio Counties". Ohio Archaeological and Historical Publications V: 326–350. . Other editions available at ISBN 1249686741 and Google Books
  2. ^ Lawyer, James Patterson (1905). History of Ohio: From the Glacial Period to the Present Time. Press of F. J. Heer. p. 381. Retrieved 2007-08-18. . Other editions available at ISBN 9781279183281
  3. ^ Steinglass, Steven; Scarselli, Gino (2004). The Ohio State Constitution A Reference Guide. Westport, CT: Praeger Publishers. pp. 272–273.  (OH county charter). Other editions available: ISBN 0313267650 and Google Books
  4. ^ "County of Summit". Retrieved 2013-02-28. 
  5. ^ "Issue 6 reform wins big and sets in motion even bigger changes for Cuyahoga County". Retrieved 2010-01-28. 
  6. ^ "Ohio QuickFacts". U.S. Census Bureau. Retrieved 2013-02-27. 
  7. ^ "Population Estimates". U.S. Census Bureau. December 2009. Archived from the original on 2010-02-23. Retrieved 2013-02-27. 
  8. ^ a b c "County FIPS Code Listing for the State of OHIO". United States Environmental Protection Agency. Retrieved 2013-02-27. 
  9. ^ a b c d "NACo - Find a County". Archived from the original on 2007-04-13. Retrieved 2007-07-22. 
  10. ^ a b "Federal Roster: Counties of Ohio, Derivation of Name and Date of Erection". Retrieved 2013-07-21. 
  11. ^ a b Howe, Henry (1891). Historical Collections of Ohio 2. Columbus, OH: Henry Howe and Son.  (OH county source). Other editions available: ISBN 1425565735 and Google Books
  12. ^ Resolution of 111th Ohio General Assembly designating John Allen as the person for which Allen County was named.
  13. ^ Ashtabula, Encyclopædia Britannica, 2007. Accessed 2007-11-19.
  14. ^ Cuyahoga River, Encyclopædia Britannica, 2007. Accessed 2007-11-19.
  15. ^ Downes, p. 368.
  16. ^ Taylor & Taylor, p. 40.

External links[edit]