ZIP Code 63021 Map
Census ZIP Code Tabulation Area 63021 in Ballwin, MO (St. Louis County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 63021 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
55,666
Households
22,131
Median household income
$120,177
Median age
40.7 years
Median home value
$349,500
Median gross rent
$1,423/mo
Owner-occupied homes
80.7%
Bachelor's degree or higher
63%
Below poverty level
5.4%
Land area
21.8 sq mi
Population density
2,551 / sq mi