| Name | Ballwin, Missouri |
| Office head of government | |
| Mayor | |
| Image |  |
| Area (m²) | 23,283,992 |
| Date founded | 29/12/1950 |
| Elevation (m) | 192 |
| Country | United States |
| Administrative division | Missouri |
| Continent | Americas |
| Latitude (°) | 38.5947227478 |
| Waterbody | |
| Longitude (°) | -90.5483322144 |
| Website | http://www.ballwin.mo.us/ |
| Population (people) | 30,404 (2010) |
| Demonym |