File:Union_County_Courthouse_Marysville.jpg · Wikimedia Commons · See Wikimedia Commons
Union County
Sign in to saveAlso known as Union County, Ohio, Union County, OH
county in Ohio, United States
Key facts
- Country
- United States
- State
- Ohio
- Founded
- April 1, 1820
- Named after
- formed from the union of parts of surrounding counties
- Seat
- Marysville
- Largest city
- Marysville
- Total
- 437 sq mi (1,130 km )
- Land
- 432 sq mi (1,120 km )
- Water
- 5.1 sq mi (13 km ) 1.2%
- Estimate 2025
- 73,446
- Density
- 140/sq mi (54/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
- UTC−4 ( EDT )
- Congressional district
- 4th
- Website
- www .unioncountyohio .gov
via Wikipedia infobox
Wikidata facts
- Country
- United States
- Located in
- Ohio
- Contains
- Marysville
- Capital
- Marysville
- Population
- 62784
- Area
- 1132
- Shares border with
- Logan County
- Official website
- www.co.union.oh.us
- Image
- AxeHandleBridge.JPG
- Households
- 20695
- Licence plate code
- 80
Show 8 more facts
- different from
- Union County
- Commons category
- Union County, Ohio
- topic's main category
- Category:Union County, Ohio
- native label
- Union County
- inception
- 1820-01-10
- category of associated people
- Category:People from Union County, Ohio
- water as percent of area
- 1.2
- per capita income
- 40278
Sources (10)
via Wikidata · CC0
~30 min read
Encyclopedic overview
Union County is a county located in the U.S. state of Ohio. As of the 2020 census, the population was 62,784. Its county seat is Marysville. Its name is reflective of its origins, being the union of portions of Franklin, Delaware, Madison, and Logan counties. Union County is part of the Columbus, Ohio Metropolitan Statistical Area.
History
Excerpted from Wikipedia’s “Union County” article, available under the CC BY-SA 4.0 licence.