Mercer County, Pennsylvania

Mercer County
Mercer County Courthouse (1909)
Mercer County Courthouse (1909)
Official seal of Mercer County
Map of Pennsylvania highlighting Mercer County
Location within the U.S. state of Pennsylvania
Map of the United States highlighting Pennsylvania
Pennsylvania's location within the U.S.
Coordinates: 41°19′N 80°15′W / 41.31°N 80.25°W / 41.31; -80.25
Country United States
State Pennsylvania
FoundedNovember 7, 1803
Named forHugh Mercer
SeatMercer
Largest cityHermitage
Area
 • Total683 sq mi (1,770 km2)
 • Land673 sq mi (1,740 km2)
 • Water10 sq mi (30 km2)  1.5%
Population
 • Total110,652
 • Density162/sq mi (63/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district16th
Websitewww.mcc.co.mercer.pa.us

Mercer County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 110,652.[2] Its county seat is Mercer,[3] and its largest city is Hermitage. The county is part of the Northwest Pennsylvania region of the state.[a]

Mercer County compromises the Hermitage, PA Micropolitan Statistical Area, which is included in the Greater Pittsburgh area.

  1. ^ "QuickFacts Mercer County, Pennsylvania". Census.
  2. ^ "QuickFacts Mercer County, Pennsylvania". Census.
  3. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.


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