Mercer County, Pennsylvania

Mercer County is a county in the U.S. state of Pennsylvania. As of the 2020 census, the population was 110,652.^[1] Its county seat is Mercer, and Its largest city is Hermitage.^[2]

Mercer County
County
Mercer County Courthouse
Location within the U.S. state of Pennsylvania
Pennsylvania's location within the U.S.
Coordinates: 41°19′N 80°15′W
Country	United States
State	Pennsylvania
Founded	November 7, 1803
Named for	Hugh Mercer
Seat	Mercer
Largest city	Hermitage
Area
• Total	683 sq mi (1,770 km2)
• Land	673 sq mi (1,740 km2)
• Water	10 sq mi (30 km2)  1.5%
Population  (2020)[1]
• Total	110,652
• Density	162/sq mi (63/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (EDT)
Congressional district	16th
Website	www.mcc.co.mercer.pa.us

History

Mercer County was created in 1800 and later organized in 1803.