[6] The community was named for John Ball, who settled at the town site in 1804.

[8] According to the United States Census Bureau, the city has a total area of 8.99 square miles (23.28 km2), all land.

23.1% of all households were made up of individuals, and 9.4% had someone living alone who was 65 years of age or older.

[22] Lion's Choice, a roast beef fast food chain, was founded in Ballwin.

[24] The original church was built in 1870, and traditional Methodist services are still conducted each Sunday inside.

[25] During 21st century renovations, a sign was discovered within the church that is thought to have hung within the original 1870 church, which reads: "ehre sei gott in der höhe," meaning "Glory to God in the highest.

Despite its small size, the church is involved in assisting an orphanage located in South Africa.

Vlasis Park covers 31 acres and features a baseball diamond, a playground, four tennis courts, restrooms, two ponds (one of which is stocked with fish), two pavilions, a walking path, and a sand volleyball court.

Vlasis Park is the location of the annual Ballwin Days Festival.

[27] The Pointe at Ballwin Commons hosts an indoor pool and fitness center.

[29] The North Pointe Aquatic Center is an outdoor pool open only during the summer.