Ballwin, Missouri

Ballwin, Missouri
Vlasis Park in Ballwin, Missouri, March 2000
Location of Ballwin in St. Louis County and Missouri
Ballwin
Location in Missouri
Ballwin
Ballwin (the United States)
Ballwin
Ballwin (North America)
Coordinates: 38°35′42″N 90°33′00″W / 38.59500°N 90.55000°W / 38.59500; -90.55000
Country United States
State Missouri
CountySt. Louis
TownshipsLafayette, Wildhorse, Meramec, Queeny, Missouri River
Established1837
IncorporatedDecember 29, 1950
Government
 • MayorMark R. Stallmann
Area
 • Total
8.98 sq mi (23.26 km2)
 • Land8.98 sq mi (23.26 km2)
 • Water0 sq mi (0.00 km2)
Elevation
623 ft (190 m)
Population
 (2020)
 • Total
31,103
 • Density3,463.4/sq mi (1,337.21/km2)
Time zoneUTC−6 (Central (CST))
 • Summer (DST)UTC−5 (CDT)
FIPS code29-03160
GNIS feature ID2394057
Websiteballwin.mo.us

Ballwin is a western suburb of St. Louis in St. Louis County, Missouri, United States. Its population was 31,103 as of the 2020 census.