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ZIP Code 63021
Ballwin, MO, St. Louis County
Population
55,666
Land area
21.8sq mi
People per sq mi
2,551
City
Ballwin
ZIP 63021 and nearby ZIP codes
ZIP 63021 at a glance
- ZIP 63021 (Ballwin) is about 28 times as dense as Missouri as a whole.
- The median household income is $120,177, 70% above the Missouri median of $70,702.
- A typical owner-occupied home is valued at $349,500 (52% above Missouri) and median rent is $1,423 a month.
Local data for ZIP 63021
Counts from official public data
Housing and community stats
ZIP 63021, American Community Survey 2020-2024
Median household income
$120,177
Poverty rate
5.4%
Median home value
$349,500
Prices +3.6% in a year
Median rent
$1,423/mo
Homeownership
80.7%
Bachelor's or higher
63.0%
Median age
40.7
Average commute
23.9 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
725
ZIP Business Patterns 2023
Employees
6,403
$334M annual payroll
PPP loans
$60.6M
1,115 loans
Campaign donations
$379K
22% D, 22% R, 2026 cycle
Environment and hazard risk
ZIP 63021, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: heat wave
Storm events since 1996
1,321
Countywide, mostly hail
Flood insurance policies
2,070
0.6% of homes, county
July high / Jan low
89° / 22°F
42.3 inches of rain a year
Health statistics
Share of adults in ZIP 63021, CDC PLACES estimates
Obesity
26.9%
U.S. 33.3% -6.4 pts
Diabetes
9.0%
U.S. 12.1% -3.1 pts
Smoking
10.4%
U.S. 12.8% -2.4 pts
Uninsured (18-64)
5.1%
U.S. 11.1% -6.0 pts
Frequently asked questions
- What city is ZIP code 63021?
- ZIP code 63021 is in Ballwin, MO (St. Louis County).
- What county is ZIP code 63021 in?
- ZIP code 63021 is mostly in St. Louis County, Missouri.
- How many people live in ZIP code 63021?
- About 55,666 people live in the 63021 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.