Millstadt, Illinois

Millstadt
Millstadt Water Tower, no longer used
Location of Millstadt in St. Clair County, Illinois.
Coordinates: 38°27′29″N 90°05′00″W / 38.45806°N 90.08333°W / 38.45806; -90.08333
CountryUnited States
StateIllinois
CountySt. Clair
Area
 • Total
3.67 sq mi (9.50 km2)
 • Land3.49 sq mi (9.04 km2)
 • Water0.18 sq mi (0.46 km2)
Elevation
600 ft (180 m)
Population
 (2020)
 • Total
4,071
 • Density1,166.3/sq mi (450.31/km2)
Time zoneUTC-6 (CST)
 • Summer (DST)UTC-5 (CDT)
ZIP codes
62260/62220
Area code618
FIPS code17-49386
GNIS feature ID2399363
Websitewww.villageofmillstadt.org

Millstadt is a village in St. Clair County, Illinois, United States, located at the crossing of Illinois Routes 163 (locally, "Jefferson Avenue") and 158 (locally, "Washington Avenue"). The village is known for its German heritage, with more than half its people of German descent. The population was 4,011 at the 2010 census and 4071 per the 2020 census.