The U.S. state of Ohio is divided into 88 counties. Explore the Ohio County Map, list of Counties in Ohio along with their County Seats in alphabetical order and check their population, areas and the date of formation.
Ohio County Map
About Ohio County Map: The map showing the county boundary, all counties boundary, state capital and neighbouring states.
Related Ohio Links
About Counties of Ohio
U.S State of Ohio is located in the Midwestern part of United States of America. The capital city of the state is Columbus. Columbus is the largest city in the state of Ohio. The state is the thirty fourth largest state by area. The state shares the borders with Lake Erie which is located to the north, Pennsylvania in the east, West Virginia to the southeast, Indiana to the west. The state is also known as “Buckeye State”. State has the total are of 40,860.69 square miles.
Counties in Ohio are 88 in number. The largest County by area in the state is Ashtabula County which is in 702.44 square miles. The smallest county is Lake County. Among the Counties in Ohio Franklin County has the highest population with 1,323,807 citizens. The other counties that have huge population are Hamilton County and Summit County. Of all Counties in Ohio Delaware is the richest county that earns $42,069 Per Capita Income. Adam County is the poorest county in the state. Adam County`s Per Capita Income is $39,079.
U.S state of Ohio has three branches of government namely Legislative branch, Executive branch and Judicial branch like all other states of the country. The local government of Ohio consists of 88 counties, Municipalities which include cities and villages. There are 251 cities towns and 681 villages and 904 special districts. According to the Constitution of Ohio and the rules and regulation of government Municipalities have in fact complete authority of home rule powers. Municipalities perhaps adopt various things like a charter, ordinances and resolutions for self- government. Each and every municipality can chose its own form of government. A lot of services are provided by city government for the citizens of Ohio. Most of Counties in Ohio are governed by Commissioners a sheriff, a coroner, an auditor, a treasurer, prosecutor, engineer a recorder and clerk of the court of the court of common.
The U.S. state of Ohio has 88 counties. Ohio is the 34th-largest state by area and with a population of nearly 11.7 million, is the seventh-most populous State. Ohio is located in the Midwestern region of the United States.
List of Ohio Counties and County Seat
| S.N | County | County Seat | Population(2020 Census) | Area | Formed |
|---|---|---|---|---|---|
| 1 | Adams County | West Union | 27,477 | 583.91 sq mi | July 10, 1797 |
| 2 | Allen County | Lima | 102,206 | 404.43 sq mi | March 1, 1820 |
| 3 | Ashland County | Ashland | 52,447 | 424.37 sq mi | February 24, 1846 |
| 4 | Ashtabula County | Jefferson | 97,574 | 702.44 sq mi | June 7, 1807 |
| 5 | Athens County | Athens | 62,431 | 506.76 sq mi | March 1, 1805 |
| 6 | Auglaize County | Wapakoneta | 46,422 | 401.25 sq mi | February 14, 1848 |
| 7 | Belmont County | St. Clairsville | 66,497 | 537.35 sq mi | September 7, 1801 |
| 8 | Brown County | Georgetown | 43,676 | 491.76 sq mi | March 1, 1818 |
| 9 | Butler County | Hamilton | 390,357 | 467.27 sq mi | May 1, 1803 |
| 10 | Carroll County | Carrollton | 26,721 | 394.67 sq mi | January 1, 1833 |
| 11 | Champaign County | Urbana | 38,714 | 428.56 sq mi | March 1, 1805 |
| 12 | Clark County | Springfield | 136,001 | 399.86 sq mi | March 1, 1818 |
| 13 | Clermont County | Batavia | 208,601 | 451.99 sq mi | December 6, 1800 |
| 14 | Clinton County | Wilmington | 42,018 | 410.88 sq mi | March 1, 1810 |
| 15 | Columbiana County | Lisbon | 101,877 | 532.46 sq mi | May 1, 1803 |
| 16 | Coshocton County | Coshocton | 36,612 | 564.07 sq mi | January 31, 1810 |
| 17 | Crawford County | Bucyrus | 42,025 | 402.11 sq mi | April 1, 1820 |
| 18 | Cuyahoga County | Cleveland | 1,264,817 | 458.49 sq mi | June 7, 1807 |
| 19 | Darke County | Greenville | 51,881 | 599.80 sq mi | January 3, 1809 |
| 20 | Defiance County | Defiance | 38,286 | 411.16 sq mi | April 7, 1845 |
| 21 | Delaware County | Delaware | 214,124 | 442.41 sq mi | April 1, 1808 |
| 22 | Erie County | Sandusky | 75,622 | 254.88 sq mi | March 15, 1838 |
| 23 | Fairfield County | Lancaster | 158,921 | 505.11 sq mi | December 9, 1800 |
| 24 | Fayette County | Washington Court House | 28,951 | 406.58 sq mi | March 1, 1810 |
| 25 | Franklin County | Columbus | 1,323,807 | 539.87 sq mi | April 30, 1803 |
| 26 | Fulton County | Wauseon | 42,713 | 406.78 sq mi | April 1, 1850 |
| 27 | Gallia County | Gallipolis | 29,220 | 468.78 sq mi | April 30, 1803 |
| 28 | Geauga County | Chardon | 95,397 | 403.66 sq mi | March 1, 1806 |
| 29 | Greene County | Xenia | 167,966 | 414.88 sq mi | May 1, 1803 |
| 30 | Guernsey County | Cambridge | 38,438 | 521.90 sq mi | March 1, 1810 |
| 31 | Hamilton County | Cincinnati | 830,639 | 413.44 sq mi | January 2, 1790 |
| 32 | Hancock County | Findlay | 74,731 | 531.35 sq mi | April 1, 1820 |
| 33 | Hardin County | Kenton | 30,696 | 470.44 sq mi | April 1, 1820 |
| 34 | Harrison County | Cadiz | 14,483 | 402.24 sq mi | February 1, 1813 |
| 35 | Henry County | Napoleon | 27,825 | 420.44 sq mi | April 1, 1820 |
| 36 | Highland County | Hillsboro | 43,476 | 553.59 sq mi | May 1, 1805 |
| 37 | Hocking County | Logan | 28,050 | 421.76 sq mi | March 1, 1818 |
| 38 | Holmes County | Millersburg | 44,124 | 423.09 sq mi | January 20, 1824 |
| 39 | Huron County | Norwalk | 58,565 | 495.14 sq mi | May 1, 1809 |
| 40 | Jackson County | Jackson | 32,653 | 420.96 sq mi | March 1, 1816 |
| 41 | Jefferson County | Steubenville | 65,249 | 410.67 sq mi | July 29, 1797 |
| 42 | Knox County | Mount Vernon | 62,721 | 530.10 sq mi | March 1, 1808 |
| 43 | Lake County | Painesville | 232,603 | 227.49 sq mi | March 6, 1840 |
| 44 | Lawrence County | Ironton | 58,240 | 453.37 sq mi | December 21, 1815 |
| 45 | Licking County | Newark | 178,519 | 682.50 sq mi | March 1, 1808 |
| 46 | Logan County | Bellefontaine | 46,150 | 467.76 sq mi | March 1, 1818 |
| 47 | Lorain County | Elyria | 312,964 | 491.10 sq mi | December 26, 1822 |
| 48 | Lucas County | Toledo | 431,279 | 340.48 sq mi | June 20, 1835 |
| 49 | Madison County | London | 44,731 | 465.44 sq mi | March 1, 1810 |
| 50 | Mahoning County | Youngstown | 228,614 | 412.43 sq mi | March 1, 1846 |
| 51 | Marion County | Marion | 65,359 | 403.94 sq mi | February 20, 1820 |
| 52 | Medina County | Medina | 182,470 | 421.36 sq mi | February 18, 1812 |
| 53 | Meigs County | Pomeroy | 22,210 | 429.14 sq mi | April 1, 1819 |
| 54 | Mercer County | Celina | 42,528 | 462.44 sq mi | April 1, 1820 |
| 55 | Miami County | Troy | 108,774 | 406.08 sq mi | February 1, 1807 |
| 56 | Monroe County | Woodsfield | 13,025 | 455.49 sq mi | January 29, 1813 |
| 57 | Montgomery County | Dayton | 537,309 | 461.27 sq mi | May 1, 1803 |
| 58 | Morgan County | McConnelsville | 14,115 | 421.33 sq mi | December 29, 1817 |
| 59 | Morrow County | Mount Gilead | 35,696 | 406.08 sq mi | February 24, 1848 |
| 60 | Muskingum County | Zanesville | 86,410 | 664.58 sq mi | March 1, 1804 |
| 61 | Noble County | Caldwell | 14,115 | 398.14 sq mi | March 11, 1851 |
| 62 | Ottawa County | Port Clinton | 40,364 | 255.17 sq mi | March 6, 1840 |
| 63 | Paulding County | Paulding | 18,806 | 416.09 sq mi | March 1, 1820 |
| 64 | Perry County | New Lexington | 35,408 | 408.37 sq mi | March 1, 1818 |
| 65 | Pickaway County | Circleville | 58,457 | 501.32 sq mi | March 1, 1810 |
| 66 | Pike County | Waverly | 27,695 | 440.42 sq mi | February 1, 1815 |
| 67 | Portage County | Ravenna | 161,791 | 487.39 sq mi | June 9, 1808 |
| 68 | Preble County | Eaton | 40,999 | 424.80 sq mi | March 1, 1808 |
| 69 | Putnam County | Ottawa | 34,451 | 483.93 sq mi | April 1, 1834 |
| 70 | Richland County | Mansfield | 124,936 | 495.18 sq mi | March 1, 1808 |
| 71 | Ross County | Chillicothe | 77,093 | 689.21 sq mi | August 20, 1798 |
| 72 | Sandusky County | Fremont | 58,896 | 408.35 sq mi | March 1, 1820 |
| 73 | Scioto County | Portsmouth | 74,008 | 612.27 sq mi | March 1, 1803 |
| 74 | Seneca County | Tiffin | 55,069 | 551.00 sq mi | April 1, 1820 |
| 75 | Shelby County | Sidney | 48,627 | 408.93 sq mi | April 1, 1819 |
| 76 | Stark County | Canton | 374,853 | 575.36 sq mi | February 13, 1808 |
| 77 | Summit County | Akron | 540,428 | 412.97 sq mi | March 3, 1840 |
| 78 | Trumbull County | Warren | 201,977 | 618.27 sq mi | July 10, 1800 |
| 79 | Tuscarawas County | New Philadelphia | 93,263 | 568.42 sq mi | March 15, 1808 |
| 80 | Union County | Marysville | 62,450 | 437.04 sq mi | April 1, 1820 |
| 81 | Van Wert County | Van Wert | 28,931 | 409.08 sq mi | February 24, 1837 |
| 82 | Vinton County | McArthur | 12,565 | 414.08 sq mi | March 23, 1850 |
| 83 | Warren County | Lebanon | 242,337 | 401.31 sq mi | May 1, 1803 |
| 84 | Washington County | Marietta | 59,911 | 632.90 sq mi | July 26, 1788 |
| 85 | Wayne County | Wooster | 116,894 | 555.77 sq mi | March 1, 1808 |
| 86 | Williams County | Bryan | 36,714 | 423.56 sq mi | April 1, 1820 |
| 87 | Wood County | Bowling Green | 132,248 | 617.80 sq mi | April 1, 1820 |
| 88 | Wyandot County | Upper Sandusky | 21,900 | 406.06 sq mi | February 3, 1845 |
Ohio County Facts
| Continent | North America |
| Country | United States |
| State | Ohio |
| Total Counties | 88 |
| Government | County government |
| Largest City | Columbus |
| Subdivisions | Cities, towns, unincorporated communities, census-designated places |
| Total Area | 44,825 sq mi (116,096 sq km) |
| Largest County (Area) | Ashtabula County (1,368 sq mi) |
| Smallest County (Area) | Lake County (228 sq mi) |
| Most Populous County | Franklin County (Population: 1,323,807 as per 2020 Census) |
| Least Populous County | Vinton County (Population: 12,565 as per 2020 Census) |
| Population | 11,799,448 (2020 Census) |
| Highest Point | Campbell Hill - 1,549 ft (472 m) |
| Lowest Point | Ohio River - 455 ft (139 m) |
| Time Zone | Eastern Time Zone (UTC -5 / UTC -4 DST) |
| Postal Abbreviation | OH |
| FIPS Code | 39 |
| Famous For | Midwestern culture, manufacturing, sports, and historic towns |
| Major Counties | Franklin, Cuyahoga, Hamilton, Summit, Montgomery |
| Official Website | ohio.gov |
Top 20 Largest Cities in Ohio by Population (2020 Census)
| City | County | Population (2020) | Area |
|---|---|---|---|
| Columbus | Franklin | 905,748 | 223.1 sq mi (578 sq km) |
| Cleveland | Cuyahoga | 372,624 | 82.5 sq mi (214 sq km) |
| Cincinnati | Hamilton | 309,317 | 79.6 sq mi (206 sq km) |
| Toledo | Lucas | 270,871 | 84.0 sq mi (218 sq km) |
| Akron | Summit | 190,469 | 62.4 sq mi (162 sq km) |
| Dayton | Montgomery | 137,644 | 56.5 sq mi (146 sq km) |
| Parma | Cuyahoga | 81,146 | 20.8 sq mi (54 sq km) |
| Canton | Stark | 70,872 | 25.5 sq mi (66 sq km) |
| Youngstown | Mahoning | 60,068 | 34.6 sq mi (90 sq km) |
| Lorain | Lorain | 65,211 | 24.1 sq mi (62 sq km) |
| Hamilton | Butler | 62,477 | 22.8 sq mi (59 sq km) |
| Springfield | Clark | 58,662 | 25.5 sq mi (66 sq km) |
| Kettering | Montgomery | 57,862 | 18.7 sq mi (48 sq km) |
| Elyria | Lorain | 52,656 | 20.8 sq mi (54 sq km) |
| Lakewood | Cuyahoga | 50,942 | 6.7 sq mi (17 sq km) |
| Cuyahoga Falls | Summit | 51,114 | 25.8 sq mi (67 sq km) |
| Middletown | Butler/Warren | 50,987 | 26.3 sq mi (68 sq km) |
| Newark | Licking | 49,934 | 21.5 sq mi (56 sq km) |
| Mansfield | Richland | 47,534 | 30.6 sq mi (79 sq km) |
| Mentor | Lake | 47,450 | 28.0 sq mi (73 sq km) |
Main Sights in Ohio
Cuyahoga Valley National Park, Rock and Roll Hall of Fame, Cedar Point, Hocking Hills State Park, Pro Football Hall of Fame, National Museum of the United States Air Force, Ohio Statehouse, Cincinnati Zoo & Botanical Garden, Lake Erie Islands, Franklin Park Conservatory, Toledo Museum of Art, Amish Country, Cleveland Museum of Art, Kings Island, Perry's Victory and International Peace Memorial.
National Parks and Historic Sites in Ohio
Cuyahoga Valley National Park, Charles Young Buffalo Soldiers National Monument, Perry's Victory and International Peace Memorial, James A. Garfield National Historic Site, William Howard Taft National Historic Site, Dayton Aviation Heritage National Historical Park, First Ladies National Historic Site.
Major Rivers in Ohio
Ohio River, Scioto River, Muskingum River, Great Miami River, Little Miami River, Maumee River, Cuyahoga River, Sandusky River, Hocking River, Auglaize River, Mad River, Tuscarawas River.
Lakes of Ohio
Lake Erie, Grand Lake St. Marys, Indian Lake, Salt Fork Lake, Alum Creek Lake, Caesar Creek Lake, Buckeye Lake, Mosquito Lake, Pymatuning Reservoir, Senecaville Lake, Berlin Lake, Piedmont Lake.
Golf Courses in Ohio (with Location)
Muirfield Village Golf Club - Dublin, Firestone Country Club - Akron, Inverness Club - Toledo, The Golf Club - New Albany, Double Eagle Club - Galena, Camargo Club - Cincinnati, Scioto Country Club - Columbus, Canterbury Golf Club - Beachwood, Brookside Country Club - Canton, Belmont Country Club - Perrysburg, Medina Country Club - Medina, Lakewood Country Club - Westlake, Toledo Country Club - Toledo, Shaker Heights Country Club - Shaker Heights, Oakwood Club - Dayton.
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References
- ^ QuickFacts Ohio. United States Census Bureau
- ^ U.S. Census Bureau QuickFacts Ohio. U.S. Census Bureau, 2024 Estimate
- ^ Elevations and Distances in the United States. United States Geological Survey (USGS)
- ^ National Geodetic Survey (NGS), NOAA
- ^ Geographic Names Information System (GNIS). United States Geological Survey
- ^ TIGER/Line Shapefiles - County Boundaries. United States Census Bureau
