Prairie du Rocher, Illinois

Prairie du Rocher
A grain elevator in Prairie du Rocher
Location of Prairie du Rocher in Randolph County, Illinois.
Coordinates: 38°04′54″N 90°05′51″W / 38.08167°N 90.09750°W / 38.08167; -90.09750
CountryUnited States
StateIllinois
CountyRandolph
PrecinctPrairie du Rocher
Founded1722
Area
 • Total
0.57 sq mi (1.48 km2)
 • Land0.57 sq mi (1.48 km2)
 • Water0 sq mi (0.00 km2)
Elevation
390 ft (120 m)
Population
 (2020)
 • Total
502
 • Density878.6/sq mi (339.24/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP code
62277
Area code618
FIPS code17-61639
GNIS feature ID2399019

Prairie du Rocher ("The Rock Prairie" in French) is a village in Randolph County, Illinois, United States. Founded in the French colonial period in the Midwest, the community is located near bluffs that flank the east side of the Mississippi River along the floodplain often called the "American Bottom". The population was 502 at the 2020 census.