Union County, Ohio

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Union County is a county located in the US state of Ohio. As of the 2010 census, the population was 52,300. Its county seat is Marysville. Its name is reflective of its origins, it being the union of portions of Franklin, Delaware, Madison, and Logan counties.

Union County is part of the Columbus, OH Metropolitan Statistical Area.
Nearby cities:
Coordinates:   40°18'25"N   83°21'38"W
This article was last modified 7 years ago