Lawrence County, Illinois

Lawrence County, Illinois
Location within the U.S. state of Illinois
Coordinates: 38°43′N 87°44′W / 38.72°N 87.73°W / 38.72; -87.73
Country United States
State Illinois
Founded1821
Named afterJames Lawrence
SeatLawrenceville
Largest cityLawrenceville
Area
 • Total
374 sq mi (970 km2)
 • Land372 sq mi (960 km2)
 • Water2.0 sq mi (5.2 km2)
Population
 (2020)
 • Total
15,280
 • Estimate 
(2024)
14,801
 • Density41.1/sq mi (15.9/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district12th
Websitewww.lawrencecounty
illinois.com

Lawrence County is the easternmost county in the U.S. state of Illinois. At the 2020 census, the population was 15,280. Its county seat is Lawrenceville.