Wayne County, Illinois

Wayne County
Location within the U.S. state of Illinois
Illinois's location within the U.S.
Coordinates: 38°26′N 88°25′W / 38.43°N 88.42°W / 38.43; -88.42
Country United States
State Illinois
Founded1819
Named afterAnthony Wayne
SeatFairfield
Largest cityFairfield
Area
  Total
715 sq mi (1,850 km2)
  Land714 sq mi (1,850 km2)
  Water1.7 sq mi (4 km2)  0.2%
Population
 (2020)
  Total
16,179
  Estimate 
(2024)
15,928
  Density22.3/sq mi (8.6/km2)
Time zoneUTC−6 (Central)
  Summer (DST)UTC−5 (CDT)
Congressional district12th
Websitewww.fairfield-il.com/county/

Wayne County is a county located in the U.S. state of Illinois. According to the 2020 census, it had a population of 16,179. Its county seat is Fairfield. It is located in the southern portion of Illinois known locally as "Little Egypt".