Ballwin, MO zip codes
Ballwin, Missouri has 4 zip codes (2 residential, 2 PO box or single-organization). Most of it is in St. Louis County. Together these zip codes are home to about 92K people.
Zip codes
4
Population
92K
All zips combined
Largest zip
63021
55,666 residents
Income range
$120K–$124K
Median by zip