Mercer County, Ohio

county in Ohio, United States

Mercer County is a county in the U.S. state of Ohio. In 2020, 42,528 people lived there.[1] The county seat is Celina.[2]

Mercer County
Mercer County courthouse
Mercer County courthouse
Flag of Mercer County
Official seal of Mercer County
Map of Ohio highlighting Mercer County
Location within the U.S. state of Ohio
Map of the United States highlighting Ohio
Ohio's location within the U.S.
Coordinates: 40°32′N 84°38′W / 40.54°N 84.63°W / 40.54; -84.63
Country United States
State Ohio
FoundedJanuary 2, 1824
Named forHugh Mercer
SeatCelina
Largest cityCelina
Area
 • Total473 sq mi (1,230 km2)
 • Land462 sq mi (1,200 km2)
 • Water11 sq mi (30 km2)  2.3%
Population
 (2020)
 • Total42,528
 • Density90/sq mi (30/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district5th
Websitewww.mercercountyohio.org

References

change
  1. "QuickFacts: Mercer County, Ohio". United States Census Bureau. Retrieved January 18, 2024.
  2. National Association of Counties. "NACo County Explorer". Retrieved January 18, 2024.