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Counties of Ohio. There are 88 counties in the U.S. state of Ohio. Nine of them existed at the time of the Ohio Constitutional Convention in 1802. [1] A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan. [2]
Mar 9, 2022 · Click on map image for county details. Sort the table by Date Formed or by Parent Counties and check Boundary Changes for interesting insights.
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.
CountyFips Code [1]County Seat [2]Created [2][3]Jul 10, 1797Mar 1, 1820Feb 24, 1846Jun 7, 1807The 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.
- North America
- State of Ohio
- United States
- 88
- Counties of Ohio
- What Are The 5 Biggest Counties in Ohio by Size?
- What Are The 5 Biggest Counties in Ohio by population?
- Which Is The Smallest County in Ohio?
- What Are The Oldest and Newest Counties in Ohio?
- Which Are The Richest and Poorest Counties in Ohio?
- What Are The Top 5 Best Counties to Live in Ohio?
The biggest counties in Ohio are Ashtabula County, Ross County, Licking County, Muskingum County, and Washington County.
In terms of population (2020), the biggest counties in Ohio are Franklin County, Cuyahoga County, Hamilton County, Summit County, and Montgomery County.
The smallest county in Ohio (in terms of population) is Vinton County. Lake County is the smallest county in terms of size.
Washington County is the oldest county, created on Jul 27, 1788. Noble County is the newest county, created on Apr 1, 1851.
Delaware County is the richest county, and Athens County is the poorest county in Ohio (in terms of median household income).
Delaware County, Warren County, Hamilton County, Franklin County, and Medina County are the best counties to live in Ohio.
Full list of counties. According to a 2022 study from the U.S. Census Bureau, this state's local governments consist of 88 counties, 2,234 cities, towns, and villages, and 952 special districts. The following table defaults to displaying only 25 counties at a time.
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Oct 28, 2024 · How Many Counties Are in Ohio? Ohio has 88 counties. These counties vary widely in population and size, with Franklin County (home to Columbus) being the most populous and Vinton County among the least populated.