# 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  | County Seat  | Created  | Origin  | Meaning of name  | Population (2020) | Area  | Map   |
| Adams County | 001 | West Union | Jul 10, 1797 | Hamilton County | John Adams (1735–1826), President of the United States when the county was organized | 27,477 | 583.91 sq mi (1,512 km2) |  |
| Allen County | 003 | Lima | Mar 1, 1820 | Shelby County | John Allen (1771/2-1813), a War of 1812 colonel | 102,206 | 404.43 sq mi (1,047 km2) |  |
| Ashland County | 005 | Ashland | Feb 24, 1846 | Wayne, Richland, Huron, and Lorain Counties | Ashland, home of U.S. Senator from Kentucky Henry Clay | 52,447 | 424.37 sq mi (1,099 km2) |  |
| Ashtabula County | 007 | Jefferson | Jun 7, 1807 | Trumbull and Geauga Counties | Ashtabula River, which means "fish river" in an Algonquian language | 97,574 | 702.44 sq mi (1,819 km2) |  |
| Athens County | 009 | Athens | Mar 1, 1805 | Washington County | Athens in Greece | 62,431 | 506.76 sq mi (1,313 km2) |  |
| Auglaize County | 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 language | 46,422 | 401.25 sq mi (1,039 km2) |  |
| Belmont County | 013 | St. Clairsville | Sep 7, 1801 | Jefferson and Washington Counties | Belle monte, which means "beautiful mountain" in French | 66,497 | 537.35 sq mi (1,392 km2) |  |
| Brown County | 015 | Georgetown | Mar 1, 1818 | Adams and Clermont Counties | General Jacob Brown (1775–1828), an officer of the War of 1812 | 43,676 | 491.76 sq mi (1,274 km2) |  |
| Butler County | 017 | Hamilton | May 1, 1803 | Hamilton County | General Richard Butler (1743–1791), killed at the Battle of the Wabash | 390,357 | 467.27 sq mi (1,210 km2) |  |
| Carroll County | 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 | 26,721 | 394.67 sq mi (1,022 km2) |  |
| Champaign County | 021 | Urbana | Mar 1, 1805 | Greene and Franklin Counties | French for "a plain", describing the land in the area | 38,714 | 428.56 sq mi (1,110 km2) |  |
| Clark County | 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 | 136,001 | 399.86 sq mi (1,036 km2) |  |
| Clermont County | 025 | Batavia | Dec 6, 1800 | Hamilton County | French for "clear mountain" | 208,601 | 451.99 sq mi (1,171 km2) |  |
| Clinton County | 027 | Wilmington | Mar 1, 1810 | Highland and Warren Counties | George Clinton (1739–1812), vice-president when the county was organized | 42,018 | 410.88 sq mi (1,064 km2) |  |
| Columbiana County | 029 | Lisbon | May 1, 1803 | Jefferson and Washington Counties | Christopher Columbus, European explorer of the Americas | 101,877 | 532.46 sq mi (1,379 km2) |  |
| Coshocton County | 031 | Coshocton | Jan 31, 1810 | Muskingum and Tuscarawas Counties | Delaware Indian word meaning "union of waters" | 36,612 | 564.07 sq mi (1,461 km2) |  |
| Crawford County | 033 | Bucyrus | Apr 1, 1820 | Delaware County | Colonel William Crawford (1732–1782), Revolutionary War officer | 42,025 | 402.11 sq mi (1,041 km2) |  |
| Cuyahoga County | 035 | Cleveland | Jun 7, 1807 | Geauga County | Cuyahoga River, which means "crooked river" in an Iroquoian language | 1,264,817 | 458.49 sq mi (1,187 km2) |  |
| Darke County | 037 | Greenville | Jan 3, 1809 | Miami County | General William Darke (1736–1801), Revolutionary War officer | 51,881 | 599.80 sq mi (1,553 km2) |  |
| Defiance County | 039 | Defiance | Apr 7, 1845 | Williams, Henry, and Paulding Counties | Fort Defiance, built in 1794 by General Anthony Wayne | 38,286 | 411.16 sq mi (1,065 km2) |  |
| Delaware County | 041 | Delaware | Apr 1, 1808 | Franklin County | Delaware Indians | 214,124 | 442.41 sq mi (1,146 km2) |  |
| Erie County | 043 | Sandusky | Mar 15, 1838 | Huron and Sandusky Counties | Erie Indians | 75,622 | 254.88 sq mi (660 km2) |  |
| Fairfield County | 045 | Lancaster | Dec 9, 1800 | Ross and Washington Counties | Named for the beauty of its "fair fields" | 158,921 | 505.11 sq mi (1,308 km2) |  |
| Fayette County | 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 | 28,951 | 406.58 sq mi (1,053 km2) |  |
| Franklin County | 049 | Columbus | Apr 30, 1803 | Ross and Wayne Counties | Benjamin Franklin (1706–1791), Founding Father, author, printer, satirist, political theorist, scientist, inventor and statesman | 1,323,807 | 539.87 sq mi (1,398 km2) |  |
| Fulton County | 051 | Wauseon | Apr 1, 1850 | Lucas, Henry, and Williams Counties | Robert Fulton (1765–1815), inventor of the steamboat | 42,713 | 406.78 sq mi (1,054 km2) |  |
| Gallia County | 053 | Gallipolis | Apr 30, 1803 | Washington and Adams Counties | Gaul, the ancient name of France | 29,220 | 468.78 sq mi (1,214 km2) |  |
| Geauga County | 055 | Chardon | Mar 1, 1806 | Trumbull County | A Native American word meaning "raccoon" | 95,397 | 403.66 sq mi (1,045 km2) |  |
| Greene County | 057 | Xenia | May 1, 1803 | Hamilton and Ross Counties | General Nathanael Greene (1742–1786), Revolutionary War officer | 167,966 | 414.88 sq mi (1,075 km2) |  |
| Guernsey County | 059 | Cambridge | Mar 1, 1810 | Belmont and Muskingum Counties | Island of Guernsey, from where most of the settlers originated | 38,438 | 521.90 sq mi (1,352 km2) |  |
| Hamilton County | 061 | Cincinnati | Jan 2, 1790 | One of the original counties | Alexander Hamilton (1755/7-1804), Secretary of the Treasury when the county was organized | 830,639 | 407.36 sq mi (1,055 km2) |  |
| Hancock County | 063 | Findlay | Apr 1, 1820 | Logan County | John Hancock (1737–1793), president of the Continental Congress | 74,920 | 531.35 sq mi (1,376 km2) |  |
| Hardin County | 065 | Kenton | Apr 1, 1820 | Logan County | General John Hardin (1753–1792), Revolutionary War officer | 30,696 | 470.29 sq mi (1,218 km2) |  |
| Harrison County | 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 | 14,483 | 403.53 sq mi (1,045 km2) |  |
| Henry County | 069 | Napoleon | Apr 1, 1820 | Shelby County | Patrick Henry (1736–1799), Revolutionary War-era legislator, orator, and scholar | 27,662 | 416.50 sq mi (1,079 km2) |  |
| Highland County | 071 | Hillsboro | May 1, 1805 | Ross, Adams, and Clermont Counties | Descriptive of the county's terrain | 43,317 | 553.28 sq mi (1,433 km2) |  |
| Hocking County | 073 | Logan | Mar 1, 1818 | Athens, Ross, and Fairfield Counties | Possibly derived from the Delaware Indian word "Hoch-Hoch-ing", meaning "bottle" | 28,050 | 422.75 sq mi (1,095 km2) |  |
| Holmes County | 075 | Millersburg | Jan 20, 1824 | Coshocton, Wayne, and Tuscarawas Counties | Major Andrew Holmes (died 1814), a War of 1812 officer | 44,223 | 422.99 sq mi (1,096 km2) |  |
| Huron County | 077 | Norwalk | Mar 7, 1809 | Portage and Cuyahoga Counties | Huron Indians | 58,565 | 492.69 sq mi (1,276 km2) |  |
| Jackson County | 079 | Jackson | Mar 1, 1816 | Scioto, Gallia, Athens, and Ross Counties | General Andrew Jackson (1767–1845), future President of the United States | 32,653 | 420.28 sq mi (1,089 km2) |  |
| Jefferson County | 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 | 65,249 | 409.61 sq mi (1,061 km2) |  |
| Knox County | 083 | Mount Vernon | Mar 1, 1808 | Fairfield County | General Henry Knox, the first Secretary of War | 62,721 | 527.12 sq mi (1,365 km2) |  |
| Lake County | 085 | Painesville | Mar 6, 1840 | Geauga and Cuyahoga Counties | Its location on Lake Erie | 232,603 | 228.21 sq mi (591 km2) |  |
| Lawrence County | 087 | Ironton | Dec 21, 1815 | Gallia and Scioto Counties | Captain James Lawrence (1781–1813), naval hero in the War of 1812 | 58,240 | 454.96 sq mi (1,178 km2) |  |
| Licking County | 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" | 178,519 | 686.50 sq mi (1,778 km2) |  |
| Logan County | 091 | Bellefontaine | Mar 1, 1818 | Champaign County | General Benjamin Logan (c. 1742 – 1802), who destroyed Shawnee Indian towns in the county | 46,150 | 458.44 sq mi (1,187 km2) |  |
| Lorain County | 093 | Elyria | Dec 26, 1822 | Huron, Cuyahoga, and Medina Counties | Province of Lorraine, France | 312,964 | 492.50 sq mi (1,276 km2) |  |
| Lucas County | 095 | Toledo | Jun 20, 1835 | Wood, Sandusky, and Huron Counties | Robert Lucas (1781–1853), Governor of Ohio when the county was created | 431,279 | 340.46 sq mi (882 km2) |  |
| Madison County | 097 | London | Mar 1, 1810 | Franklin County | James Madison (1751–1836), fourth President of the United States | 43,824 | 465.44 sq mi (1,205 km2) |  |
| Mahoning County | 099 | Youngstown | Mar 1, 1846 | Columbiana and Trumbull Counties | Mahoning River, from a Lenape word meaning "at the licks" | 228,614 | 415.25 sq mi (1,075 km2) |  |
| Marion County | 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 | 65,359 | 403.84 sq mi (1,046 km2) |  |
| Medina County | 103 | Medina | Feb 18, 1812 | Portage County | Medina, world-renowned religious site in western Saudi Arabia | 182,470 | 423 sq mi (1,096 km2) |  |
| Meigs County | 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 | 22,210 | 429.42 sq mi (1,112 km2) |  |
| Mercer County | 107 | Celina | Apr 1, 1820 | Darke County | General Hugh Mercer (1726–1777), a Revolutionary War officer | 42,528 | 463.27 sq mi (1,200 km2) |  |
| Miami County | 109 | Troy | Mar 1, 1807 | Montgomery County | Miami Indians | 108,774 | 407.04 sq mi (1,054 km2) |  |
| Monroe County | 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 | 13,385 | 455.54 sq mi (1,180 km2) |  |
| Montgomery County | 113 | Dayton | May 1, 1803 | Hamilton and Wayne Counties | General Richard Montgomery (1738–1775), a Revolutionary War officer | 537,309 | 461.68 sq mi (1,196 km2) |  |
| Morgan County | 115 | McConnelsville | Dec 29, 1817 | Washington, Guernsey, and Muskingum Counties | General Daniel Morgan (c. 1735 – 1802), a Revolutionary War officer | 13,802 | 417.66 sq mi (1,082 km2) |  |
| Morrow County | 117 | Mount Gilead | Mar 1, 1848 | Knox, Marion, Delaware, and Richland Counties | Jeremiah Morrow (1771–1852), Governor of Ohio | 34,950 | 406.22 sq mi (1,052 km2) |  |
| Muskingum County | 119 | Zanesville | Mar 1, 1804 | Washington and Fairfield Counties | An Indian word meaning "A town by the river" or "by the river side" | 86,410 | 664.63 sq mi (1,721 km2) |  |
| Noble County | 121 | Caldwell | Apr 1, 1851 | Monroe, Washington, Morgan, and Guernsey Counties | Warren P. Noble, an early settler in the area | 14,115 | 399.00 sq mi (1,033 km2) |  |
| Ottawa County | 123 | Port Clinton | Mar 6, 1840 | Erie, Sandusky, and Lucas Counties | Named for the Ottawa Indians; Ottawa means "trader" in their language | 40,364 | 254.95 sq mi (660 km2) |  |
| Paulding County | 125 | Paulding | Apr 1, 1820 | Darke County | John Paulding (1758–1818), captor of spy John André during the Revolutionary War | 18,806 | 416.26 sq mi (1,078 km2) |  |
| Perry County | 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 | 35,408 | 409.78 sq mi (1,061 km2) |  |
| Pickaway County | 129 | Circleville | Mar 1, 1810 | Ross, Fairfield, and Franklin Counties | A misspelling of the Piqua tribe, a branch of the Shawnee | 58,539 | 501.91 sq mi (1,300 km2) |  |
| Pike County | 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 | 27,088 | 441.49 sq mi (1,143 km2) |  |
| Portage County | 133 | Ravenna | Jun 7, 1807 | Trumbull County | Derived from an Indian portage | 161,791 | 492.39 sq mi (1,275 km2) |  |
| Preble County | 135 | Eaton | Mar 1, 1808 | Montgomery and Butler Counties | Captain Edward Preble (1761–1807), a Naval commander in the Revolutionary War | 40,999 | 424.80 sq mi (1,100 km2) |  |
| Putnam County | 137 | Ottawa | Apr 1, 1820 | Shelby County | General Israel Putnam (1718–1790), a Revolutionary War officer | 34,451 | 483.87 sq mi (1,253 km2) |  |
| Richland County | 139 | Mansfield | Mar 1, 1808 | Fairfield County | Descriptive of the soil in the area | 124,936 | 496.88 sq mi (1,287 km2) |  |
| Ross County | 141 | Chillicothe | Aug 20, 1798 | Adams and Washington Counties | Named for U.S. Senator from Pennsylvania James Ross by territorial governor Arthur St. Clair | 77,093 | 688.41 sq mi (1,783 km2) |  |
| Sandusky County | 143 | Fremont | Apr 1, 1820 | Huron County | An Iroquois word meaning "cold water" | 58,896 | 409.18 sq mi (1,060 km2) |  |
| Scioto County | 145 | Portsmouth | May 1, 1803 | Adams County | Scioto River; Scioto is a Wyandot Indian word meaning "deer" | 74,008 | 612.27 sq mi (1,586 km2) |  |
| Seneca County | 147 | Tiffin | Apr 1, 1820 | Huron County | Seneca Indians, who had a reservation in the county area at the time | 55,069 | 550.59 sq mi (1,426 km2) |  |
| Shelby County | 149 | Sidney | Apr 1, 1819 | Miami County | General Isaac Shelby (1750–1826), a Revolutionary War officer and Governor of Kentucky | 48,230 | 409.27 sq mi (1,060 km2) |  |
| Stark County | 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 | 374,853 | 576.14 sq mi (1,492 km2) |  |
| Summit County | 153 | Akron | Mar 3, 1840 | Medina, Portage, and Stark Counties | Its location at the highest elevation along the Ohio and Erie Canal | 540,428 | 419.38 sq mi (1,086 km2) |  |
| Trumbull County | 155 | Warren | Jul 10, 1800 | Jefferson and Wayne Counties | Jonathan Trumbull (1710–1785), Governor of Connecticut when the county was organized | 201,977 | 616.48 sq mi (1,597 km2) |  |
| Tuscarawas County | 157 | New Philadelphia | Mar 15, 1808 | Muskingum County | Tuscarawas River, meaning "open mouth river" **or** the Tuscarawas tribe who lived on the river | 93,263 | 567.58 sq mi (1,470 km2) |  |
| Union County | 159 | Marysville | Apr 1, 1820 | Delaware, Franklin, Logan, and Madison Counties | It was formed from a union of four counties | 62,784 | 436.65 sq mi (1,131 km2) |  |
| Van Wert County | 161 | Van Wert | Apr 1, 1820 | Darke County | Isaac Van Wart (1760–1828), captor of spy John André during the Revolutionary War | 28,931 | 410.09 sq mi (1,062 km2) |  |
| Vinton County | 163 | McArthur | Mar 23, 1850 | Athens, Gallia, Hocking, Jackson, and Ross Counties | Samuel Finley Vinton (1792–1862), Ohio Statesman and U.S. Congressman | 12,800 | 414.08 sq mi (1,072 km2) |  |
| Warren County | 165 | Lebanon | May 1, 1803 | Hamilton County | General Joseph Warren (1741–1775), a Revolutionary War officer | 242,337 | 399.63 sq mi (1,035 km2) |  |
| Washington County | 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 | 59,771 | 635.15 sq mi (1,645 km2) |  |
| Wayne County | 169 | Wooster | Mar 1, 1808 | From non-county area | General Anthony Wayne (1745–1796), a Revolutionary War officer | 116,894 | 555.36 sq mi (1,438 km2) |  |
| Williams County | 171 | Bryan | Apr 1, 1820 | Darke County | David Williams (1754–1831), captor of spy John André during the Revolutionary War | 37,102 | 421.74 sq mi (1,092 km2) |  |
| Wood County | 173 | Bowling Green | Apr 1, 1820 | Refactored from non-county territory | Eleazer D. Wood (1783–1814), founder of Fort Meigs | 132,248 | 617.32 sq mi (1,599 km2) |  |
| Wyandot County | 175 | Upper Sandusky | Feb 3, 1845 | Marion, Crawford, and Hardin Counties | Wyandot Indians | 21,900 | 405.61 sq mi (1,051 km2) |  |

* *History of Ohio: From the Glacial Period to the Present Time*. Press of F. J. Heer. 1905. Retrieved 2007-08-18.
* 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
* Downes, Randolph Chandler. "Evolution of Ohio County Boundaries". *Ohio Archaeological and Historical Publications*. **36**: 340–477. Archived from the original on November 5, 2014.
* Taylor, William Alexander; Taylor, Aubrey Clarence (1899). *Ohio statesmen and annals of progress: from the year 1788 to the year 1900 ...* State of Ohio.