Mercer County, Ohio

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 Increase
 • Density90/sq mi (30/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district5th
Websitewww.mercercountyohio.org
Grand Lake St. Marys State Park
Graftonoceras fossil nautiloid, found near Coldwater, southern Mercer County.

Mercer County is located in the U.S. state of Ohio. As of the 2020 census, the population was 42,528.[1] Its county seat is Celina.[2] The county was created in 1820 and later organized in 1824.[3] It is named for Hugh Mercer, an officer in the American Revolutionary War.[4]

Mercer County comprises the Celina, Ohio Micropolitan Statistical Area

  1. ^ 2020 census
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ "Ohio: Individual County Chronologies". Ohio Atlas of Historical County Boundaries. The Newberry Library. 2007. Archived from the original on April 6, 2016. Retrieved February 14, 2015.
  4. ^ "Mercer County data". Ohio State University Extension Data Center. Retrieved April 28, 2007.[dead link]

© MMXXIII Rich X Search. We shall prevail. All rights reserved. Rich X Search