City · United States
Ballwin
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.
Good to know
- Population: 30,577.
- Founded: 1804.
- Area: 23.3 sq km.
- Elevation: 192 m.
- Timezone: America/Chicago.