Back مقاطعة يونيون (أوهايو) Arabic یونیون بؤلگهسی، اوهایو AZB Union County, Ohio BAR Юниън (окръг, Охайо) Bulgarian ইউনিয়ন কাউন্টি, ওহাইও BPY Union Gông (Ohio) CDO Union County (kondado sa Tinipong Bansa, Ohio) CEB Union County, Ohio Welsh Union County (Ohio) Danish Union County (Ohio) German
Union County | |
|---|---|
 Union County Courthouse | |
 Flag  Seal | |
 Location within the U.S. state of Ohio | |
 Ohio's location within the U.S. | |
| Coordinates: 40°19′N 83°22′W / 40.31°N 83.37°W | |
| Country |  United States |
| State |  Ohio |
| Founded | April 1, 1820[1] |
| Named for | formed from the union of parts of surrounding counties |
| Seat | Marysville |
| Largest city | Marysville |
| Area | |
| • Total | 437 sq mi (1,130 km2) |
| • Land | 432 sq mi (1,120 km2) |
| • Water | 5.1 sq mi (13 km2) 1.2% |
| Population (2020) | |
| • Total | 62,784 |
| • Density | 140/sq mi (55/km2) |
| Time zone | UTC−5 (Eastern) |
| • Summer (DST) | UTC−4 (EDT) |
| Congressional district | 4th |
| Website | www |
Union County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 62,784.[2] Its county seat is Marysville.[3] Its name is reflective of its origins, it being the union of portions of Franklin, Delaware, Madison, and Logan counties.[4]
Union County is part of the Columbus, OH Metropolitan Statistical Area.
- ^ "Ohio County Profiles: Union County" (PDF). Ohio Department of Development. Archived from the original (PDF) on May 8, 2007. Retrieved April 28, 2007.
- ^ 2020 census
- ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- ^ "Union County data". Ohio State University Extension Data Center. Archived from the original on December 20, 2016. Retrieved April 28, 2007.
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