List of counties in Ohio

[1] A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan.[5] Counties do not possess home rule powers and can do only what has been expressly authorized by the Ohio General Assembly.[8][9] The Federal Information Processing Standard (FIPS) is used by the U.S. government to uniquely identify counties.In the following table, these codes link to the United States Census Bureau's "quick facts" for each county.The Ohio Department of Taxation assigns consecutive numbers for the purpose of enumerating taxing districts.
Counties of Ohio
countiesU.S. stateOhio Constitutional ConventionMichiganWayne CountyOhio ConstitutioncharterSummitCuyahogahome ruleOhio General AssemblyOhio county governmentsthree commissionerssheriffdistrict attorneycoronerauditortreasurerclerk of courtsCensusFranklin CountyVinton CountyAshtabula CountyLake CountyAdams CountyWest UnionJohn AdamsPresident of the United StatesAllen CountyJohn AllenWar of 1812Ashland CountyAshlandKentuckyHenry ClayJeffersonAshtabula RiverAlgonquian languageAthens CountyAthensAuglaize CountyWapakonetaAuglaize RiverShawneeBelmont CountySt. ClairsvilleBrown CountyGeorgetownJacob BrownButler CountyHamiltonRichard ButlerBattle of the WabashCarroll CountyCarrolltonCharles CarrollUnited States Declaration of IndependenceChampaign CountyUrbanaClark CountySpringfieldGeorge Rogers ClarkClermont CountyBataviaClinton CountyWilmingtonGeorge ClintonColumbiana CountyLisbonChristopher ColumbusCoshocton CountyCoshoctonDelawareCrawford CountyBucyrusWilliam CrawfordRevolutionary WarCuyahoga CountyClevelandCuyahoga RiverIroquoian languageDarke CountyGreenvilleWilliam DarkeDefiance CountyDefianceFort DefianceAnthony WayneDelaware CountyDelaware IndiansErie CountySanduskyErie IndiansFairfield CountyLancasterFayette CountyWashington Court HouseGilbert du Motier, marquis de La FayetteColumbusBenjamin FranklinFounding FatherFulton CountyWauseonRobert FultonsteamboatGallia CountyGallipolisFranceGeauga CountyChardonGreene CountyNathanael GreeneGuernsey CountyCambridgeGuernseyHamilton CountyCincinnatiAlexander HamiltonSecretary of the TreasuryHancock CountyFindlayJohn HancockContinental CongressHardin CountyKentonJohn HardinHarrison CountyWilliam Henry HarrisonHenry CountyNapoleonPatrick HenryHighland CountyHillsboroHocking CountyDelaware IndianHolmes CountyMillersburgAndrew HolmesHuron CountyNorwalkHuron IndiansJackson CountyJacksonAndrew JacksonJefferson CountySteubenvilleThomas JeffersonVice PresidentDeclaration of IndependenceKnox CountyMount VernonHenry KnoxSecretary of WarPainesvilleLake ErieLawrence CountyIrontonJames LawrenceLicking CountyNewarkLicking Riversalt licksLenapeLogan CountyBellefontaineBenjamin LoganShawnee IndianLorain CountyElyriaLorraineLucas CountyToledoRobert LucasGovernor of OhioMadison CountyLondonJames MadisonMahoning CountyYoungstownMahoning RiverMarion CountyMarionFrancis MarionContinental ArmyAmerican Revolutionary WarMedina CountyMedinaSaudi ArabiaMeigs CountyPomeroyReturn Jonathan Meigs Jr.Postmaster GeneralMercer CountyCelinaHugh MercerMiami CountyMiami IndiansMonroe CountyWoodsfieldJames MonroeSecretary of StateMontgomery CountyDaytonRichard MontgomeryMorgan CountyMcConnelsvilleDaniel MorganMorrow CountyMount GileadJeremiah MorrowMuskingum CountyZanesvilleNoble CountyCaldwellOttawa CountyPort ClintonOttawa IndiansPaulding CountyPauldingJohn PauldingJohn AndréPerry CountyNew LexingtonOliver Hazard PerryPickaway CountyCirclevillePike CountyWaverlyZebulon M. PikePikes PeakPortage CountyRavennaportagePreble CountyEdward PreblePutnam CountyOttawaIsrael PutnamRichland CountyMansfieldRoss CountyChillicothePennsylvaniaJames RossArthur St. ClairSandusky CountyFremontIroquoisScioto CountyPortsmouthScioto RiverWyandotSeneca CountyTiffinSenecaShelby CountySidneyIsaac ShelbyGovernor of KentuckyStark CountyCantonJohn StarkBattle of BenningtonSummit CountyOhio and Erie CanalTrumbull CountyWarrenJonathan TrumbullTuscarawas CountyNew PhiladelphiaTuscarawas RiverUnion CountyMarysvilleVan Wert CountyVan WertIsaac Van WartMcArthurSamuel Finley VintonWarren CountyLebanonJoseph WarrenWashington CountyMariettaGeorge WashingtonConstitutional ConventionWoosterWilliams CountyDavid WilliamsWood CountyBowling GreenEleazer D. WoodFort MeigsWyandot CountyUpper SanduskyFederal Information Processing StandardOhio Department of TaxationOhio Department of Public SafetyOhio Bureau of Motor VehiclesDepartment of TransportationOhio History ConnectionOhio county governmentList of Ohio townshipsIllinois County, VirginiaLaning, J.F.Ohio Archaeological and Historical PublicationsEncyclopædia BritannicaOhio Historic Preservation OfficeLists of United States counties and county equivalentsStatesAlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutequiv.FloridaGeorgiaHawaiiIllinoisIndianaKansasLouisianaMarylandMassachusettsMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOklahomaOregonRhode IslandSouth CarolinaSouth DakotaTennesseeVermontVirginiaWashingtonWest VirginiaWisconsinWyomingFederal districtDistrict of ColumbiaInsular areasAmerican SamoaPuerto RicoU.S. Virgin IslandsOutlying IslandsTopicsOutlineClimate changeGovernmentadministrative divisionscongressional delegationselectionsHistoryPeopleSymbolsAbortionAfrican AmericansEconomyEducationcolleges and universitiesGun lawsHomelessnessLGBT rightsPoliticsSportsAllegheny PlateauAppalachian OhioThe BluegrassGlacial till plainsGreat Black SwampList of Lake Erie IslandsMahoning ValleyMiami ValleyNortheast OhioNorthwest OhioVacationlandWestern ReserveMetro areasHuntington–AshlandYoungstown–WarrenLargest citiesCuyahoga FallsDublinEuclidKetteringLakewoodLorainMiddletownAshtabulaAuglaizeBelmontButlerCarrollChampaignClermontClintonColumbianaCrawfordFairfieldFayetteFranklinFultonGalliaGeaugaGreeneHancockHardinHarrisonHighlandHockingHolmesLawrenceLickingMadisonMahoningMercerMonroeMontgomeryMorganMorrowMuskingumPickawayPreblePutnamRichlandSciotoShelbyTrumbullTuscarawasVintonWilliams