List of counties in Ohio

The U.S. state of Ohio is divided into 88 counties. They are listed below with their county seat ( county seat ), the date of incorporation and the namesake. The column " origin " indicates contributions from other counties a new one arose.

County (United States) Adams County (Ohio) John Adams Allen County (Ohio) Lima (Ohio) War of 1812 Ashland County (Ohio) Ashland (Ohio) Henry Clay Ashtabula County, Ohio Jefferson (Ohio) Ashtabula River Athens County, Ohio Athens (Ohio) Athens Auglaize County, Ohio Wapakoneta, Ohio Belmont County, Ohio St. Clairsville, Ohio Brown County (Ohio) Georgetown (Ohio) Butler County (Ohio) Hamilton (Ohio) Carroll County (Ohio) Carrollton (Ohio) Champaign County (Ohio) Clark County (Ohio) Springfield (Ohio) George Rogers Clark Clermont County, Ohio Batavia (Ohio) Clinton County (Ohio) Columbiana County, Ohio Lisbon (Ohio) Coshocton County, Ohio Coshocton, Ohio Crawford County (Ohio) Bucyrus (Ohio) William Crawford (soldier) Cuyahoga County, Ohio Cleveland Cuyahoga River Darke County, Ohio Greenville (Ohio) Defiance County, Ohio Anthony Wayne Delaware County (Ohio) Delaware (Ohio) Erie County (Ohio) Sandusky (Ohio) Fairfield County (Ohio) Lancaster (Ohio) Fayette County (Ohio) Franklin County (Ohio) Columbus (Ohio) Benjamin Franklin Fulton County (Ohio) Robert Fulton Gallia County, Ohio Gallipolis, Ohio Geauga County, Ohio Chardon, Ohio Native Americans in the United States Greene County (Ohio) Nathanael Greene Guernsey County, Ohio Cambridge (Ohio) Hamilton County (Ohio) Alexander Hamilton Hancock County (Ohio) Findlay (Ohio) Hardin County (Ohio) Kenton (Ohio) Harrison County (Ohio) Henry County (Ohio) Napoleon (Ohio) Patrick Henry Highland County (Ohio) Hocking County, Ohio Logan (Ohio) Holmes County (Ohio) Millersburg (Ohio) Huron County (Ohio) Norwalk (Ohio) Wyandot people Jackson County (Ohio) Andrew Jackson Jefferson County (Ohio) Steubenville, Ohio Thomas Jefferson Knox County (Ohio) Mount Vernon (Ohio) Henry Knox Lake County (Ohio) Painesville, Ohio Lake Erie Lawrence County (Ohio) Ironton (Ohio) James Lawrence Licking County, Ohio Newark (Ohio) Logan County (Ohio) Bellefontaine (Ohio) Lorain County, Ohio Elyria (Ohio) Lorraine (region) Lucas County (Ohio) Robert Lucas (governor) Madison County (Ohio) London (Ohio) James Madison Mahoning County, Ohio Youngstown (Ohio) Mahoning River Marion County (Ohio) Francis Marion Medina County (Ohio) Medina (Ohio) Meigs County (Ohio) Mercer County (Ohio) Celina (Ohio) Miami County (Ohio) Troy (Ohio) Miami people Monroe County (Ohio) James Monroe Montgomery County (Ohio) Dayton (Ohio) Richard Montgomery Morgan County (Ohio) McConnelsville, Ohio Daniel Morgan Morrow County (Ohio) Mount Gilead (Ohio) Jeremiah Morrow Muskingum County, Ohio Zanesville (Ohio) Noble County (Ohio) Caldwell (Ohio) Ottawa County (Ohio) Odawa Paulding County (Ohio) Paulding (Ohio) Perry County (Ohio) Oliver Hazard Perry Pickaway County, Ohio Circleville (Ohio) Pike County (Ohio) Pikes Peak Portage County (Ohio) Ravenna (Ohio) Portage (disambiguation) Preble County, Ohio Eaton (Ohio) Putnam County (Ohio) Ottawa (Ohio) Israel Putnam Richland County (Ohio) Mansfield (Ohio) Ross County, Ohio Chillicothe (Ohio) James Ross (Pennsylvania politician) Sandusky County, Ohio Fremont (Ohio) Scioto County, Ohio Portsmouth (Ohio) Scioto River Seneca County (Ohio) Tiffin (Ohio) Shelby County (Ohio) Sidney (Ohio) Isaac Shelby Stark County (Ohio) Canton (Ohio) John Stark Summit County (Ohio) Akron, Ohio Trumbull County, Ohio Tuscarawas County, Ohio New Philadelphia (Ohio) Tuscarawas River Union County (Ohio) Marysville (Ohio) Van Wert County, Ohio Van Wert, Ohio Isaac Van Wart Vinton County, Ohio McArthur (Ohio) Samuel Finley Vinton Warren County (Ohio) Lebanon (Ohio) Joseph Warren Washington County (Ohio) Marietta (Ohio) George Washington Wayne County (Ohio) Wooster (Ohio) Williams County (Ohio) Bryan (Ohio) Wood County (Ohio) Bowling Green (Ohio) Wyandot County, Ohio List of counties in Alabama List of boroughs and census areas in Alaska List of counties in Arizona List of counties in Arkansas List of counties in Colorado List of counties in Connecticut List of counties in Delaware List of counties in Florida List of counties in Georgia List of counties in Idaho List of counties in Illinois List of counties in Indiana List of counties in Iowa List of counties in California List of counties in Kansas List of counties in Kentucky List of counties in Maine List of counties in Maryland List of counties in Massachusetts List of counties in Michigan List of counties in Minnesota List of counties in Mississippi List of counties in Missouri List of counties in Nebraska List of counties in Nevada List of counties in New Hampshire List of counties in New Jersey List of counties in New Mexico List of counties in New York List of counties in North Carolina List of counties in North Dakota List of counties in Oklahoma List of counties in Oregon List of counties in Pennsylvania List of counties in Rhode Island List of counties in South Carolina List of counties in South Dakota List of counties in Tennessee List of counties in Texas List of counties in Utah List of counties in Vermont List of counties in Virginia List of counties in Washington List of counties in West Virginia List of counties in Wisconsin List of counties in Wyoming
516218
de