Ballwin is located in Missouri. Ballwin, Missouri has a population of 30,998. Ballwin is more family-centric than the surrounding county with 37.97% of the households containing married families with children. The county average for households married with children is 29.08%.
The median household income in Ballwin, Missouri is $107,806. The median household income for the surrounding county is $72,562 compared to the national median of $69,021. The median age of people living in Ballwin is 43 years.
The average high temperature in July is 88 degrees, with an average low temperature in January of 21.3 degrees. The average rainfall is approximately 43.9 inches per year, with 12.3 inches of snow per year.