List of counties in Ohio

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Counties of Ohio

There are 88 counties in the U.S. state of Ohio. 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 roughly the present state of Michigan.[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 in northeastern Ohio, considerably distant from the area that was the original Wayne County.[1]

The Ohio Constitution allows counties to set up a charter government as many cities and villages do,[3] but only Summit and Cuyahoga counties 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. The elected county officials in Ohio county governments include three commissioners, a sheriff (the highest law enforcement officer in the county); prosecutor (equivalent of a district attorney in other states); coroner, engineer, Recorder, auditor, treasurer, and clerk of courts.[6][7]

Population figures are based on the 2025 vintage Census population estimates. The population of Ohio was 11,900,510 at that time, an increase of 0.9% from 2020. The average population of Ohio's counties was 135,233; Franklin County was the most populous (1,361,536) and Vinton County was the least (12,645). 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 its neighbor, Lake County, is the smallest at 228.21 sq mi (591.1 km2). The total area of the state is 40,860.69 sq mi (105,828.7 km2).[8][9]

List of counties

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List of county codes

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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. 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.[10]

Various state agencies identify counties by different coding schemes. The Ohio Department of Taxation assigns consecutive numbers for the purpose of enumerating taxing districts.[11] The Ohio Department of Public Safety, including the Ohio Bureau of Motor Vehicles, associates these county numbers with vehicle registrations.[12] The Department of Transportation uses three-letter abbreviations in road inventory and traffic management applications.[13] For historic preservation purposes, Ohio History Connection refers to counties by two- and three-letter abbreviations in the Ohio Archaeological Inventory and Ohio Historic Inventory, respectively.[14]

County FIPS code ODPS[12]/ODT[11] code OAI[14] code ODOT[13]/OHI[14] code
Adams County 001 01 AD ADA
Allen County 003 02 AL ALL
Ashland County 005 03 AS ASD
Ashtabula County 007 04 AB ATB
Athens County 009 05 AT ATH
Auglaize County 011 06 AU AUG
Belmont County 013 07 BL BEL
Brown County 015 08 BR BRO
Butler County 017 09 BU BUT
Carroll County 019 10 CA CAR
Champaign County 021 11 CH CHP
Clark County 023 12 CL CLA
Clermont County 025 13 CT CLE
Clinton County 027 14 CN CLI
Columbiana County 029 15 CO COL
Coshocton County 031 16 CS COS
Crawford County 033 17 CR CRA
Cuyahoga County 035 18 CU CUY
Darke County 037 19 DA DAR
Defiance County 039 20 DE DEF
Delaware County 041 21 DL DEL
Erie County 043 22 ER ERI
Fairfield County 045 23 FA FAI
Fayette County 047 24 FE FAY
Franklin County 049 25 FR FRA
Fulton County 051 26 FU FUL
Gallia County 053 27 GA GAL
Geauga County 055 28 GE GEA
Greene County 057 29 GR GRE
Guernsey County 059 30 GU GUE
Hamilton County 061 31 HA HAM
Hancock County 063 32 HK HAN
Hardin County 065 33 HR HAR
Harrison County 067 34 HN HAS
Henry County 069 35 HY HEN
Highland County 071 36 HI HIG
Hocking County 073 37 HO HOC
Holmes County 075 38 HS HOL
Huron County 077 39 HU HUR
Jackson County 079 40 JA JAC
Jefferson County 081 41 JE JEF
Knox County 083 42 KN KNO
Lake County 085 43 LA LAK
Lawrence County 087 44 LE LAW
Licking County 089 45 LI LIC
Logan County 091 46 LO LOG
Lorain County 093 47 LN LOR
Lucas County 095 48 LU LUC
Madison County 097 49 MA MAD
Mahoning County 099 50 MH MAH
Marion County 101 51 MN MAR
Medina County 103 52 ME MED
Meigs County 105 53 MS MEG
Mercer County 107 54 MR MER
Miami County 109 55 MI MIA
Monroe County 111 56 MO MOE
Montgomery County 113 57 MY MOT
Morgan County 115 58 MG MRG
Morrow County 117 59 MW MRW
Muskingum County 119 60 MU MUS
Noble County 121 61 NO NOB
Ottawa County 123 62 OT OTT
Paulding County 125 63 PA PAU
Perry County 127 64 PE PER
Pickaway County 129 65 PI PIC
Pike County 131 66 PK PIK
Portage County 133 67 PO POR
Preble County 135 68 PR PRE
Putnam County 137 69 PU PUT
Richland County 139 70 RI RIC
Ross County 141 71 RO ROS
Sandusky County 143 72 SA SAN
Scioto County 145 73 SC SCI
Seneca County 147 74 SE SEN
Shelby County 149 75 SH SHE
Stark County 151 76 ST STA
Summit County 153 77 SU SUM
Trumbull County 155 78 TR TRU
Tuscarawas County 157 79 TU TUS
Union County 159 80 UN UNI
Van Wert County 161 81 VW VAN
Vinton County 163 82 VI VIN
Warren County 165 83 WA WAR
Washington County 167 84 WN WAS
Wayne County 169 85 WE WAY
Williams County 171 86 WI WIL
Wood County 173 87 WO WOO
Wyandot County 175 88 WY WYA

See also

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References

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  1. ↑ 1.0 1.1 Laning, J.F. (1896). "The Evolution of Ohio Counties". Ohio Archaeological and Historical Publications. V: 326–350. Archived from the original on November 21, 2015.. 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 August 18, 2007. 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. ↑ "Ohio Counties". County of Summit. November 15, 2011. Archived from the original on January 27, 2020. Retrieved February 28, 2013.CS1 maint: unfit URL (link)
  5. ↑ "Issue 6 reform wins big and sets in motion even bigger changes for Cuyahoga County". cleveland.com. November 4, 2009. Retrieved January 28, 2010.
  6. ↑ "OSBA - OSBA Staff Directory". www.ohiobar.org.
  7. ↑ "Title 3 - Ohio Revised Code | Ohio Laws".
  8. ↑ "Ohio QuickFacts". U.S. Census Bureau. Archived from the original on March 3, 2013. Retrieved February 27, 2013.
  9. ↑ "Population Estimates". U.S. Census Bureau. December 2009. Archived from the original on March 22, 2009. Retrieved February 27, 2013.
  10. ↑ "County FIPS Code Listing for the State of OHIO". United States Environmental Protection Agency. Archived from the original on August 14, 2016. Retrieved July 9, 2016.
  11. ↑ 11.0 11.1 "Ohio Counties with County Number" (PDF). Columbus, Ohio: Ohio Department of Taxation. June 25, 2020. Retrieved September 11, 2023.
  12. ↑ 12.0 12.1 Taxing District Code Book 2023 (PDF). Ohio Bureau of Motor Vehicles, Tax Distribution Section. January 3, 2023. Retrieved September 12, 2023.
  13. ↑ 13.0 13.1 "ODOT County Abbreviation Table" (PDF). Ohio Department of Transportation. May 1, 2013. Retrieved December 21, 2014.
  14. ↑ 14.0 14.1 14.2 "Ohio Archaeological Inventory Form Instruction Manual" (PDF). Ohio Historic Preservation Office. June 2003. p. 61. Retrieved September 12, 2023.

Further reading

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Template:U.S. Counties Template:Ohio

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