The US state of Ohio (situated in the midwestern region of the United States) has 88 counties. It has 904 special districts, 251 cities/towns, and 681 villages. The state’s capital city and the largest city, Columbus, is located in Franklin County and extends to Delaware County and Fairfield County. Check this Ohio County Map which provides the location of all counties on the Ohio Map.

Counties of Ohio

• Adams County Map, Ohio
• Allen County Map, Ohio
• Ashland County Map, Ohio
• Ashtabula County Map, Ohio
• Athens County Map, Ohio
• Auglaize County Map, Ohio
• Belmont County Map, Ohio
• Brown County Map, Ohio
• Butler County Map, Ohio
• Carroll County Map, Ohio
• Champaign County Map, Ohio
• Clark County Map, Ohio
• Clermont County Map, Ohio
• Clinton County Map, Ohio
• Columbiana County Map, Ohio
• Coshocton County Map, Ohio
• Crawford County Map, Ohio
• Cuyahoga County Map, Ohio
• Darke County Map, Ohio
• Defiance County Map, Ohio
• Delaware County Map, Ohio
• Erie County Map, Ohio
• Fairfield County Map, Ohio
• Fayette County Map, Ohio
• Franklin County Map, Ohio
• Fulton County Map, Ohio
• Gallia County Map, Ohio
• Geauga County Map, Ohio
• Greene County Map, Ohio
• Guernsey County Map, Ohio
• Hamilton County Map, Ohio
• Hancock County Map, Ohio
• Hardin County Map, Ohio
• Harrison County Map, Ohio
• Henry County Map, Ohio
• Highland County Map, Ohio
• Hocking County Map, Ohio
• Holmes County Map, Ohio
• Huron County Map, Ohio
• Jackson County Map, Ohio
• Jefferson County Map, Ohio
• Knox County Map, Ohio
• Lake County Map, Ohio
• Lawrence County Map, Ohio
• Licking County Map, Ohio
• Logan County Map, Ohio
• Lorain County Map, Ohio
• Lucas County Map, Ohio
• Madison County Map, Ohio
• Mahoning County Map, Ohio
• Marion County Map, Ohio
• Medina County Map, Ohio
• Meigs County Map, Ohio
• Mercer County Map, Ohio
• Miami County Map, Ohio
• Monroe County Map, Ohio
• Montgomery County Map, Ohio
• Morgan County Map, Ohio
• Morrow County Map, Ohio
• Muskingum County Map, Ohio
• Noble County Map, Ohio
• Ottawa County Map, Ohio
• Paulding County Map, Ohio
• Perry County Map, Ohio
• Pickaway County Map, Ohio
• Pike County Map, Ohio
• Portage County Map, Ohio
• Preble County Map, Ohio
• Putnam County Map, Ohio
• Richland County Map, Ohio
• Ross County Map, Ohio
• Sandusky County Map, Ohio
• Scioto County Map, Ohio
• Seneca County Map, Ohio
• Shelby County Map, Ohio
• Stark County Map, Ohio
• Summit County Map, Ohio
• Trumbull County Map, Ohio
• Tuscarawas County Map, Ohio
• Union County Map, Ohio
• Van Wert County Map, Ohio
• Vinton County Map, Ohio
• Warren County Map, Ohio
• Washington County Map, Ohio
• Wayne County Map, Ohio
• Williams County Map, Ohio
• Wood County Map, Ohio
• Wyandot County Map, Ohio

What are the 5 Biggest Counties in Ohio by Size?

The biggest counties in Ohio are Ashtabula County, Ross County, Licking County, Muskingum County, and Washington County. 

What are the 5 Biggest Counties in Ohio by Population?

In terms of population (2020), the biggest counties in Ohio are Franklin County, Cuyahoga County, Hamilton County, Summit County, and Montgomery County. 

Which is the Smallest County in Ohio?

The smallest county in Ohio (in terms of population) is Vinton County. Lake County is the smallest county in terms of size. 

What are the Oldest and Newest Counties in Ohio?

Washington County is the oldest county, created on Jul 27, 1788. Noble County is the newest county, created on Apr 1, 1851. 

Which are the Richest and Poorest Counties in Ohio?

Delaware County is the richest county, and Athens County is the poorest county in Ohio (in terms of median household income).

What are the top 5 Best Counties to Live in Ohio?

Delaware County, Warren County, Hamilton County, Franklin County, and Medina County are the best counties to live in Ohio.