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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. A tenth county, Wayne, was established on August 15, 1796, and encompassed roughly the present state of Michigan.
Mar 9, 2022 · Ohio County Creation Dates and Parent Counties. See an interactive outline map of Ohio Historical Boundary Changes at Newberry Library site. [1] Select a year and the map will display the historical county boundaries. Click on map image for county details.
- Fun Facts About Ohio Counties
- Boundary Changes of Ohio Counties from 1788-1888
- List of Old Former / Extinct Ohio Counties
Counties by Year
1. Washington County was the original county created on July 27, 1788. 2. Noble County was the last county created on April 1, 1851.
County Size Facts
1. Ashtabula County(702 sq mi) is the largest county in Ohio. 2. Lake County(228 sq mi) is the smallest county in Ohio.
County Population Facts
1. Vinton County(13,435) is the least populated county in Ohio. 2. Franklin County(1,264,518) is the most populated county in Ohio.
This Interactive Map of Ohio Countiesshow the historical boundaries, names, organization, and attachments of every county, extinct county and unsuccessful county proposal from 1788 to 1888.
Ohio contains some counties that no longer exist because they were discontinued, renamed or merged with another county. These are important for genealogy research purposes. The belowcounties formerly within the area of the State of Ohiono longer exist:
Dec 14, 2021 · On February 12, 1812, the Ohio government authorized the creation of Medina County. It originally was a portion of the Connecticut Western Reserve. The county was named for the Arabian city of Medina, the former home of the Islamic faith's prophet Mohammed.
The Continental Congress created the Northwest Territory on 13 Jul 1787. 1788. First organized European settlement in the Northwest Territory at Marietta (Washington Co., OH). Washington Co. formed as first county in the Northwest Territory (included most of what would become eastern and southeastern Ohio). 1790.
Find a brief history of Ohio Counties. This is a list of the eighty-eight (88) counties in the state of Ohio. The Ohio Constitution allows counties to set up a charter government as many cities and villages do, but only Summit County has done so. Ohio is a Midwestern state of the United States.
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How did Ohio become a state?
The history of Ohio as a state began when the Northwest Territory was divided in 1800, and the remainder reorganized for admission to the union on March 1, 1803, as the 17th state of the United States.
