Greene County, Pennsylvania

Greene County, Pennsylvania
Greene County Courthouse
Location within the U.S. state of Pennsylvania
Coordinates: 39°52′N 80°13′W / 39.86°N 80.22°W / 39.86; -80.22
Country United States
State Pennsylvania
FoundedFebruary 9, 1796
Named afterNathanael Greene
SeatWaynesburg
Largest boroughWaynesburg
Government
 • Chairman of the Board of CommissionersJared Edgreen
Area
 • Total
578 sq mi (1,500 km2)
 • Land576 sq mi (1,490 km2)
 • Water2.0 sq mi (5.2 km2)  0.4%
Population
 (2020)
 • Total
35,954
 • Estimate 
(2024)
33,960
 • Density62/sq mi (24/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (EDT)
Congressional district14th
Websitehttps://greenecountypa.gov/

Greene County is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the population was 35,954. Its county seat is Waynesburg. Greene County is part of the Pittsburgh media market. The county is part of the Southwest region of the commonwealth.