Foster Township, Madison County, Illinois

Foster Township
Location of Illinois in the United States
Coordinates: 38°57′46″N 90°05′59″W / 38.96278°N 90.09972°W / 38.96278; -90.09972
CountryUnited States
StateIllinois
CountyMadison
SettledNovember 2, 1875
Area
 • Total
31.34 sq mi (81.2 km2)
 • Land30.86 sq mi (79.9 km2)
 • Water0.48 sq mi (1.2 km2)
Elevation
548 ft (167 m)
Population
 (2010)
 • Estimate 
(2016)
4,020
 • Density132.6/sq mi (51.2/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
FIPS code17-119-27182

Foster Township is located in Madison County, Illinois, in the United States. As of the 2010 census, its population was 4,091 and it contained 1,663 housing units.