Jasper County, Illinois

Jasper County, Illinois
Location within the U.S. state of Illinois
Coordinates: 39°01′N 88°09′W / 39.01°N 88.15°W / 39.01; -88.15
Country United States
State Illinois
Founded1831
Named afterWilliam Jasper
SeatNewton
Largest cityNewton
Area
 • Total
498 sq mi (1,290 km2)
 • Land495 sq mi (1,280 km2)
 • Water3.6 sq mi (9.3 km2)  0.7%
Population
 (2020)
 • Total
9,287
 • Estimate 
(2024)
9,092
 • Density18.8/sq mi (7.24/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district12th
Websitehttps://jaspercountyillinois.gov/

Jasper County is a county located in the U.S. state of Illinois. According to the 2020 census, it has a population of 9,287. Its county seat is Newton.