Mercer County Address Data

  • State: Ohio
  • County: Mercer County
  • County Seat: Celina
  • FIPS: 39107
  • Founded in: 1820
  • Population: 40,959
  • Density: 88 Persons/Square Mile
  • Area: 462 Square Miles
  • Government Type: County
  • Authority: Dillon's Rule
  • Legislative Body: Board of Commissioners
  • Legislative Body Size: 3
  • County Contact: 220 W Livingston St Ste A201
    County Courthouse
    Celina, OH 45822-1673
  • County site: http://www.mercercountyohio.org
  • Labor Force: 23,528
  • Unemployment Rate: 2.80%
  • Gross Domestic Product (GDP): $2.2 B

Top Cities in Mercer County

Major Cities (population)

Neighbor Counties

  • Adams County
  • Jay County
  • Auglaize County
  • Darke County
  • Shelby County
  • Van Wert County
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