The U.S. state of Ohio comprises 88 counties. Nine of them existed at the time of the Ohio Constitutional Convention in 1802.A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan. 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.
The Ohio Constitution allows counties to set up a charter government as many cities and villages do,but only Summit and Cuyahoga counties have done so, the latter having been approved by voters in November 2009. 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 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.
Population figures are based on the 2010 United States Census. The population of Ohio was 11,536,504 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 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).
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.However, the Bureau of Motor Vehicles and Department of Transportation instead identify counties by consecutive numbers and three-letter abbreviations, respectively. 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.
|County||FIPS code||County Seat||Est.||Origin||Etymology||Population||Area||Map|
|AdamsCounty||001||West Union||Jul 10, 1797||Hamilton County||John Adams (1735–1826), President of the United States when the county was organized||28,550||583.91 sq mi|
|AllenCounty||003||Lima||Mar 1, 1820||Shelby County||John Allen (1771/2-1813), a War of 1812 colonel||106,331||404.43 sq mi|
|AshlandCounty||005||Ashland||Feb 24, 1846||Wayne, Richland, Huron, and Lorain Counties||Ashland, home of U.S. Senator from Kentucky Henry Clay||53,139||424.37 sq mi|
|AshtabulaCounty||007||Jefferson||Jun 7, 1807||Trumbull and Geauga Counties||Ashtabula River, which means "fish river" in an Algonquian language||101,497||702.44 sq mi|
|AthensCounty||009||Athens||Mar 1, 1805||Washington County||Athens in Greece||64,757||506.76 sq mi|
|AuglaizeCounty||011||Wapakoneta||Feb 14, 1848||Allen, Mercer, Darke, Hardin, Logan, Shelby, and Van Wert Counties||Auglaize River, which means "fallen timbers river" in the Shawnee Indian language||45,949||401.25 sq mi|
|BelmontCounty||013||St. Clairsville||Sep 7, 1801||Jefferson and Washington Counties||Belle monte, which means "beautiful mountain" in French||70,400||537.35 sq mi|
|BrownCounty||015||Georgetown||Mar 1, 1818||Adams and Clermont Counties||General Jacob Brown (1775–1828), an officer of the War of 1812||44,846||491.76 sq mi|
|ButlerCounty||017||Hamilton||May 1, 1803||Hamilton County||General Richard Butler (1743–1791), killed at the Battle of the Wabash||368,130||467.27 sq mi|
|CarrollCounty||019||Carrollton||Jan 1, 1833||Columbiana, Stark, Harrison, Jefferson, and Tuscarawas Counties||Charles Carroll (1737–1832), last surviving signer of the United States Declaration of Independence||28,836||394.67 sq mi|
|ChampaignCounty||021||Urbana||Mar 1, 1805||Greene and Franklin Counties||French for "a plain", describing the land in the area||40,097||428.56 sq mi|
|ClarkCounty||023||Springfield||Mar 1, 1818||Champaign, Madison, and Greene Counties||General George Rogers Clark (1752–1818), defeated the Shawnee Indians in a battle near the Springfield area||138,333||399.86 sq mi|
|ClermontCounty||025||Batavia||Dec 6, 1800||Hamilton County||French for "clear mountain"||197,363||451.99 sq mi|
|ClintonCounty||027||Wilmington||Mar 1, 1810||Highland and Warren Counties||George Clinton (1739–1812), vice-president when the county was organized||42,040||410.88 sq mi|
|ColumbianaCounty||029||Lisbon||May 1, 1803||Jefferson and Washington Counties||Christopher Columbus, European explorer of the Americas||107,841||532.46 sq mi|
|CoshoctonCounty||031||Coshocton||Jan 31, 1810||Muskingum and Tuscarawas Counties||Delaware Indian word meaning "union of waters"||36,901||564.07 sq mi|
|CrawfordCounty||033||Bucyrus||Apr 1, 1820||Delaware County||Colonel William Crawford (1732–1782), Revolutionary War officer||43,784||402.11 sq mi|
|CuyahogaCounty||035||Cleveland||Jun 7, 1807||Geauga County||Cuyahoga River, which means "crooked river" in an Iroquoian language||1,249,352||458.49 sq mi|
|DarkeCounty||037||Greenville||Jan 3, 1809||Miami County||General William Darke (1736–1801), Revolutionary War officer||52,959||599.80 sq mi|
|DefianceCounty||039||Defiance||Apr 7, 1845||Williams, Henry, and Paulding Counties||Fort Defiance, built in 1794 by General Anthony Wayne||39,037||411.16 sq mi|
|DelawareCounty||041||Delaware||Apr 1, 1808||Franklin County||Delaware Indians||174,214||442.41 sq mi|
|ErieCounty||043||Sandusky||Mar 15, 1838||Huron and Sandusky Counties||Erie Indians||77,079||254.88 sq mi|
|FairfieldCounty||045||Lancaster||Dec 9, 1800||Ross and Washington Counties||Named for the beauty of its "fair fields"||146,156||505.11 sq mi|
|FayetteCounty||047||Washington Court House||Mar 1, 1810||Ross and Highland Counties||Gilbert du Motier, marquis de La Fayette, French military officer and aristocrat who participated in both the American and French revolutions||29,030||406.58 sq mi|
|FranklinCounty||049||Columbus||Apr 30, 1803||Ross and Wayne Counties||Benjamin Franklin (1706–1791), Founding Father, author, printer, political theorist, scientist, inventor, and statesman||1,264,518||539.87 sq mi|
|FultonCounty||051||Wauseon||Apr 1, 1850||Lucas, Henry, and Williams Counties||Robert Fulton (1765–1815), inventor of the steamboat||42,698||406.78 sq mi|
|GalliaCounty||053||Gallipolis||Apr 30, 1803||Washington and Adams Counties||Gaul, the ancient name of France||30,934||468.78 sq mi|
|GeaugaCounty||055||Chardon||Mar 1, 1806||Trumbull County||An Indian word meaning "raccoon"||93,389||403.66 sq mi|
|GreeneCounty||057||Xenia||May 1, 1803||Hamilton and Ross Counties||General Nathanael Greene (1742–1786), Revolutionary War officer||161,573||414.88 sq mi|
|GuernseyCounty||059||Cambridge||Mar 1, 1810||Belmont and Muskingum Counties||Island of Guernsey, from where most of the settlers originated||40,087||521.90 sq mi|
|HamiltonCounty||061||Cincinnati||Jan 2, 1790||One of the original counties||Alexander Hamilton (1755/7-1804), Secretary of the Treasury when the county was organized||802,374||407.36 sq mi|
|HancockCounty||063||Findlay||Apr 1, 1820||Logan County||John Hancock (1737–1793), president of the Continental Congress||74,782||531.35 sq mi|
|HardinCounty||065||Kenton||Apr 1, 1820||Logan County||General John Hardin (1753–1792), Revolutionary War officer||32,058||470.29 sq mi|
|HarrisonCounty||067||Cadiz||Feb 1, 1813||Jefferson and Tuscarawas Counties||General William Henry Harrison (1773–1841), an officer of the War of 1812 and future President of the United States||15,864||403.53 sq mi|
|HenryCounty||069||Napoleon||Apr 1, 1820||Shelby County||Patrick Henry (1736–1799), Revolutionary War-era legislator, orator, and scholar||28,215||416.50 sq mi|
|HighlandCounty||071||Hillsboro||May 1, 1805||Ross, Adams, and Clermont Counties||Descriptive of the county's terrain||43,589||553.28 sq mi|
|HockingCounty||073||Logan||Mar 1, 1818||Athens, Ross, and Fairfield Counties||Possibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle"||29,380||422.75 sq mi|
|HolmesCounty||075||Millersburg||Jan 20, 1824||Coshocton, Wayne, and Tuscarawas Counties||Major Andrew Holmes (died 1814), a War of 1812 officer||42,366||422.99 sq mi|
|HuronCounty||077||Norwalk||Mar 7, 1809||Portage and Cuyahoga Counties||Huron Indians||59,626||492.69 sq mi|
|JacksonCounty||079||Jackson||Mar 1, 1816||Scioto, Gallia, Athens, and Ross Counties||General Andrew Jackson (1767–1845), future President of the United States||33,225||420.28 sq mi|
|JeffersonCounty||081||Steubenville||Jul 29, 1797||Washington County||Thomas Jefferson (1743–1826), Vice President when the county was organized, future President of the United States, and principal author of the Declaration of Independence||69,709||409.61 sq mi|
|KnoxCounty||083||Mount Vernon||Mar 1, 1808||Fairfield County||General Henry Knox, the first Secretary of War||60,921||527.12 sq mi|
|LakeCounty||085||Painesville||Mar 6, 1840||Geauga and Cuyahoga Counties||Its location on Lake Erie||230,041||228.21 sq mi|
|LawrenceCounty||087||Ironton||Dec 21, 1815||Gallia and Scioto Counties||Captain James Lawrence (1781–1813), naval hero in the War of 1812||62,450||454.96 sq mi|
|LickingCounty||089||Newark||Mar 1, 1808||Fairfield County||Licking 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"||166,492||686.50 sq mi|
|LoganCounty||091||Bellefontaine||Mar 1, 1818||Champaign County||General Benjamin Logan (c. 1742 – 1802), who destroyed Shawnee Indian towns in the county||45,858||458.44 sq mi|
|LorainCounty||093||Elyria||Dec 26, 1822||Huron, Cuyahoga, and Medina Counties||Province of Lorraine, France||301,356||492.50 sq mi|
|LucasCounty||095||Toledo||Jun 20, 1835||Wood, Sandusky, and Huron Counties||Robert Lucas (1781–1853), Governor of Ohio when the county was created||441,815||340.46 sq mi|
|MadisonCounty||097||London||Mar 1, 1810||Franklin County||James Madison (1751–1836), fourth President of the United States||43,435||465.44 sq mi|
|MahoningCounty||099||Youngstown||Mar 1, 1846||Columbiana and Trumbull Counties||Mahoning River, from a Lenape word meaning "at the licks"||238,823||415.25 sq mi|
|MarionCounty||101||Marion||Apr 1, 1820||Delaware County||General Francis Marion (1732–1795), lieutenant colonel in the Continental Army and later brigadier general in the American Revolutionary War||66,501||403.84 sq mi|
|MedinaCounty||103||Medina||Feb 18, 1812||Portage County||Medina, world-renowned religious site in western Saudi Arabia||176,395||423 sq mi|
|MeigsCounty||105||Pomeroy||Apr 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||23,770||429.42 sq mi|
|MercerCounty||107||Celina||Apr 1, 1820||Darke County||General Hugh Mercer (1726–1777), a Revolutionary War officer||40,814||463.27 sq mi|
|MiamiCounty||109||Troy||Mar 1, 1807||Montgomery County||Miami Indians||102,506||407.04 sq mi|
|MonroeCounty||111||Woodsfield||Jan 29, 1813||Belmont, Washington, and Guernsey Counties||James Monroe (1758–1831), Secretary of State when the county was organized and future President of the United States||14,642||455.54 sq mi|
|MontgomeryCounty||113||Dayton||May 1, 1803||Hamilton and Wayne Counties||General Richard Montgomery (1738–1775), a Revolutionary War officer||535,153||461.68 sq mi|
|MorganCounty||115||McConnelsville||Dec 29, 1817||Washington, Guernsey, and Muskingum Counties||General Daniel Morgan (c. 1735 – 1802), a Revolutionary War officer||15,054||417.66 sq mi|
|MorrowCounty||117||Mount Gilead||Mar 1, 1848||Knox, Marion, Delaware, and Richland Counties||Jeremiah Morrow (1771–1852), Governor of Ohio||34,827||406.22 sq mi|
|MuskingumCounty||119||Zanesville||Mar 1, 1804||Washington and Fairfield Counties||An Indian word meaning "A town by the river" or "by the river side"||86,074||664.63 sq mi|
|NobleCounty||121||Caldwell||Apr 1, 1851||Monroe, Washington, Morgan, and Guernsey Counties||Warren P. Noble, an early settler in the area||14,645||399.00 sq mi|
|OttawaCounty||123||Port Clinton||Mar 6, 1840||Erie, Sandusky, and Lucas Counties||Named for the Ottawa Indians; Ottawa means "trader" in their language||41,428||254.95 sq mi|
|PauldingCounty||125||Paulding||Apr 1, 1820||Darke County||John Paulding (1758–1818), captor of spy John André during the Revolutionary War||19,614||416.26 sq mi|
|PerryCounty||127||New Lexington||Mar 1, 1818||Washington, Fairfield, and Muskingum Counties||Commodore Oliver Hazard Perry (1785–1819), a naval officer of the War of 1812||36,058||409.78 sq mi|
|PickawayCounty||129||Circleville||Mar 1, 1810||Ross, Fairfield, and Franklin Counties||A misspelling of the Piqua tribe, a branch of the Shawnee||55,698||501.91 sq mi|
|PikeCounty||131||Waverly||Feb 1, 1815||Ross, Scioto, and Adams Counties||General Zebulon M. Pike (1779–1813), a War of 1812 officer and discoverer of Pikes Peak in Colorado in 1806||28,709||441.49 sq mi|
|PortageCounty||133||Ravenna||Jun 7, 1807||Trumbull County||Derived from an Indian portage||161,419||492.39 sq mi|
|PrebleCounty||135||Eaton||Mar 1, 1808||Montgomery and Butler Counties||Captain Edward Preble (1761–1807), a Naval commander in the Revolutionary War||42,270||424.80 sq mi|
|PutnamCounty||137||Ottawa||Apr 1, 1820||Shelby County||General Israel Putnam (1718–1790), a Revolutionary War officer||34,499||483.87 sq mi|
|RichlandCounty||139||Mansfield||Mar 1, 1808||Fairfield County||Descriptive of the soil in the area||124,475||496.88 sq mi|
|RossCounty||141||Chillicothe||Aug 20, 1798||Adams and Washington Counties||Named for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair||78,064||688.41 sq mi|
|SanduskyCounty||143||Fremont||Apr 1, 1820||Huron County||An Iroquois word meaning "cold water"||60,944||409.18 sq mi|
|SciotoCounty||145||Portsmouth||May 1, 1803||Adams County||Scioto River; Scioto is a Wyandot Indian word meaning "deer"||79,499||612.27 sq mi|
|SenecaCounty||147||Tiffin||Apr 1, 1820||Huron County||Seneca Indians, who had a reservation in the county area at the time||56,745||550.59 sq mi|
|ShelbyCounty||149||Sidney||Apr 1, 1819||Miami County||General Isaac Shelby (1750–1826), a Revolutionary War officer and Governor of Kentucky||49,423||409.27 sq mi|
|StarkCounty||151||Canton||Feb 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||375,586||576.14 sq mi|
|SummitCounty||153||Akron||Mar 3, 1840||Medina, Portage, and Stark Counties||Its location at the highest elevation along the Ohio and Erie Canal||541,781||419.38 sq mi|
|TrumbullCounty||155||Warren||Jul 10, 1800||Jefferson and Wayne Counties||Jonathan Trumbull (1710–1785), Governor of Connecticut when the county was organized||210,312||616.48 sq mi|
|TuscarawasCounty||157||New Philadelphia||Mar 15, 1808||Muskingum County|| Tuscarawas River, meaning "open mouth river"|
the Tuscarawas tribe who lived on the river
|92,582||567.58 sq mi|
|UnionCounty||159||Marysville||Apr 1, 1820||Delaware, Franklin, Logan, and Madison Counties||Its formation by a union of four counties||52,300||436.65 sq mi|
|Van WertCounty||161||Van Wert||Apr 1, 1820||Darke County||Isaac Van Wart (1760–1828), captor of spy John André during the Revolutionary War||28,744||410.09 sq mi|
|VintonCounty||163||McArthur||Mar 23, 1850||Athens, Gallia, Hocking, Jackson, and Ross Counties||Samuel Finley Vinton (1792–1862), Ohio Statesman and U.S. Congressman||13,435||414.08 sq mi|
|WarrenCounty||165||Lebanon||May 1, 1803||Hamilton County||General Joseph Warren (1741–1775), a Revolutionary War officer||212,693||399.63 sq mi|
|WashingtonCounty||167||Marietta||Jul 27, 1788||One of the original counties||George Washington (1732–1799), commander of the Continental Army, president of the Constitutional Convention, and future President of the United States||61,778||635.15 sq mi|
|WayneCounty||169||Wooster||Mar 1, 1808||From non-county area||General Anthony Wayne (1745–1796), a Revolutionary War officer||114,520||555.36 sq mi|
|WilliamsCounty||171||Bryan||Apr 1, 1820||Darke County||David Williams (1754–1831), captor of spy John André during the Revolutionary War||37,642||421.74 sq mi|
|WoodCounty||173||Bowling Green||Apr 1, 1820||Refactored from non-county territory||Eleazer D. Wood (1783–1814), founder of Fort Meigs||125,488||617.32 sq mi|
|WyandotCounty||175||Upper Sandusky||Feb 3, 1845||Marion, Crawford, and Hardin Counties||Wyandot Indians||22,615||405.61 sq mi|
Summit County is an urban county in the U.S. state of Ohio. As of the 2010 census, the population was 541,781 making it the fourth-most populous county in Ohio. Its county seat is Akron. The county was formed on March 3, 1840, from portions of Medina, Portage and Stark Counties. It was named "Summit County" because the highest elevation on the Ohio and Erie Canal is located in the county.
Cuyahoga County is located in the northeastern part of the U.S. state of Ohio on the southern shore of Lake Erie, across the U.S.-Canada maritime border. As of the 2019 United States Census estimates, its population was 1,235,072, making it the second-most-populous county in the state.
Ashtabula County is the northeasternmost county in the U.S. state of Ohio. As of the 2010 census, the population was 101,497. The county seat is Jefferson. The county was created in 1808 and later organized in 1811. The name Ashtabula derives from the Lenape language phrase ashte-pihële, which translates to 'always enough (fish) to go around, to be given away' and is a contraction of apchi ('always') + tepi ('enough') + hële.
The Cleveland metropolitan area, or Greater Cleveland as it is more commonly known, is the metropolitan area surrounding the city of Cleveland in Northeast Ohio, United States. According to 2018 United States Census estimates, the five-county Cleveland–Elyria Metropolitan Statistical Area (MSA) consists of Cuyahoga County, Geauga County, Lake County, Lorain County, and Medina County, and has a population of 2,057,009 making Greater Cleveland the 33rd most populous metropolitan area in the United States, the third largest metro area in Ohio, and the second largest metro area, behind Columbus, entirely in Ohio. Greater Cleveland is part of the larger Cleveland–Akron–Canton Combined Statistical Area and its 3.5 million residents make it the largest Ohio metro in the 59 million giant Great Lakes Megalopolis.
The region Northeast Ohio, in the US state of Ohio, in its most expansive usage contains six metropolitan areas along with eight micropolitan statistical areas. Most of the region is considered either part of the Cleveland–Akron–Canton, OH Combined Statistical Area and media market or the Youngstown–Warren, OH-PA Combined Statistical Area and media market. In total the region is home to 4,529,596 residents. Northeast Ohio also includes most of the area known historically as the Connecticut Western Reserve. In 2011, the Intelligent Community Forum ranked Northeast Ohio as a global Smart 21 Communities list. It has the highest concentration of Hungarian Americans in the United States.
Greene Township is one of the twenty-four townships of Trumbull County, Ohio, United States. The 2000 census found 986 people in the township.
Gustavus Township is one of the twenty-four townships of Trumbull County, Ohio, United States. The 2000 census found 948 people in the township.
Wayne Township is one of the twenty-seven townships of Ashtabula County, Ohio, United States. The 2010 census found 630 people in the township.
Andover Township is one of the twenty-seven townships of Ashtabula County, Ohio, United States. The 2010 census found 2,753 people in the township, 1,608 of whom lived in the unincorporated portions of the township.
Cherry Valley Township is one of the twenty-seven townships of Ashtabula County, Ohio, United States. The 2010 census found 955 people in the township.
Colebrook Township is one of the twenty-seven townships of Ashtabula County, Ohio, United States. The 2010 census found 994 people in the township.
Williamsfield Township is one of the twenty-seven townships of Ashtabula County, Ohio, United States. The 2010 census found 1,645 people in the township.
The following outline is provided as an overview of and topical guide to the U.S. state of Ohio:
The 2012 United States presidential election in Ohio took place on November 6, 2012, as part of the 2012 United States presidential election in which all 50 states plus the District of Columbia participated. Ohio voters chose 18 electors to represent them in the Electoral College via a popular vote pitting incumbent Democratic President Barack Obama and his running mate, Vice President Joe Biden, against Republican challenger and former Massachusetts Governor Mitt Romney and his running mate, Congressman Paul Ryan. This election continued Ohio's bellwether streak, as the state voted for the winner of the presidency in every election from 1964 to 2016.
The administrative divisions of Ohio are counties, municipalities, townships, special districts, and school districts.
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