Pike County, Illinois

Pike County, Illinois
County
Location within the U.S. state of Illinois
Coordinates: 39°37′N 90°53′W / 39.62°N 90.89°W / 39.62; -90.89
Country United States
State Illinois
FoundedJanuary 31, 1821
Named afterZebulon Pike
SeatPittsfield
Largest cityPittsfield
Area
 • Total
849 sq mi (2,200 km2)
 • Land831 sq mi (2,150 km2)
 • Water18 sq mi (47 km2)  2.1%
Population
 (2020)
 • Total
14,739
 • Estimate 
(2024)
14,258
 • Density17.7/sq mi (6.85/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district15th
Websitewww.pikecountyil.org

Pike County is a county in the U.S. state of Illinois. It is located between the Mississippi River and the Illinois River in western Illinois. According to the 2020 United States census, it had a population of 14,739. Its county seat is Pittsfield.