63021 vs 63040 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 63021, Orange = ZIP 63040.
Quick verdict: ZIP 63021 is more affordable rent, lower unemployment, more diverse. ZIP 63040 is wealthier, higher home values, lower poverty rate, more educated, higher work-from-home share.
Quick Facts
ZIP 63021
Ballwin city, MO
View full profile →- Population56,297
- Median Income$113,822
- Median Home Value$324k
- Median Rent$1,204
- Median Age40.4 yrs
- Poverty Rate5.1%
ZIP 63040
Wildwood city, MO
View full profile →- Population8,826
- Median Income$130,139
- Median Home Value$409k
- Median Rent$1,320
- Median Age42.3 yrs
- Poverty Rate2.7%
Visual comparison (same scale)
Population
56,2978,826
Median Income
$113,822$130,139
Median Home Value
$324k$409k
Median Rent
$1,204$1,320
Median Age
40.4 yrs42.3 yrs
Poverty Rate
5.1%2.7%
Demographics
ZIP 63021
Ballwin city, MO
View full profile →- White %77.5%
- Black %2.5%
- Asian %9.9%
- Hispanic %5.2%
- Age 0–17 %22.6%
- Age 18–64 %60.3%
- Age 65+ %17.1%
- Bachelor's+ %62.1%
- Diversity Index38/100
ZIP 63040
Wildwood city, MO
View full profile →- White %80.0%
- Black %0.3%
- Asian %5.3%
- Hispanic %7.3%
- Age 0–17 %24.2%
- Age 18–64 %58.8%
- Age 65+ %17.0%
- Bachelor's+ %63.7%
- Diversity Index35/100
Visual comparison (same scale)
White %
77.5%80.0%
Black %
2.5%0.3%
Asian %
9.9%5.3%
Hispanic %
5.2%7.3%
Age 0–17 %
22.6%24.2%
Age 18–64 %
60.3%58.8%
Age 65+ %
17.1%17.0%
Bachelor's+ %
62.1%63.7%
Diversity Index
38/10035/100
Economy
ZIP 63021
Ballwin city, MO
View full profile →- Median Income$113,822
- Unemployment %3.4%
- IRS Net Migration+2,545
- Work From Home %17.3%
ZIP 63040
Wildwood city, MO
View full profile →- Median Income$130,139
- Unemployment %4.8%
- IRS Net Migration+399
- Work From Home %19.1%
Visual comparison (same scale)
Median Income
$113,822$130,139
Unemployment %
3.4%4.8%
IRS Net Migration
+2,545+399
Work From Home %
17.3%19.1%
Housing
ZIP 63021
Ballwin city, MO
View full profile →- Median Home Value$324k
- Median Rent$1,204
- Owner Occupied %79.0%
- Broadband %96.4%
- Vacant %3.4%
- Median Year Built1983
ZIP 63040
Wildwood city, MO
View full profile →- Median Home Value$409k
- Median Rent$1,320
- Owner Occupied %88.3%
- Broadband %95.4%
- Vacant %1.5%
- Median Year Built1994
Visual comparison (same scale)
Median Home Value
$324k$409k
Median Rent
$1,204$1,320
Owner Occupied %
79.0%88.3%
Broadband %
96.4%95.4%
Vacant %
3.4%1.5%
Median Year Built
19831994
Climate & Location
ZIP 63021
Ballwin city, MO
View full profile →- Snow Days/Year0 days
- Elevation (ft)450 ft
- Nearest Airport8.6 miles (13.8 km)
- Distance to Coast244.5 miles (393.5 km)
ZIP 63040
Wildwood city, MO
View full profile →- Snow Days/Year0 days
- Elevation (ft)462 ft
- Nearest Airport6.2 miles (9.9 km)
- Distance to Coast246.8 miles (397.2 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
450 ft462 ft
Nearest Airport
8.6 miles (13.8 km)6.2 miles (9.9 km)
Distance to Coast
244.5 miles (393.5 km)246.8 miles (397.2 km)
Infrastructure
ZIP 63021
Ballwin city, MO
View full profile →- Work From Home %17.3%
- Walkability (0–100)39
- Broadband %96.4%
ZIP 63040
Wildwood city, MO
View full profile →- Work From Home %19.1%
- Walkability (0–100)42
- Broadband %95.4%
Visual comparison (same scale)
Work From Home %
17.3%19.1%
Walkability (0–100)
3942
Broadband %
96.4%95.4%
Frequently Asked Questions
How do ZIP 63021 and 63040 compare?
ZIP 63021 is more affordable rent, lower unemployment, more diverse. ZIP 63040 is wealthier, higher home values, lower poverty rate, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (63021), orange the second (63040). The same colors are used in the map markers and comparison bars.
Where does this data come from?
Data is from the U.S. Census Bureau and other federal sources. See our Methodology page for details.
How can I compare other ZIP codes?
From any ZIP page, use the "Compare with Another ZIP" tool, or go to /compare/XXXXX-vs-YYYYY (replace with two 5-digit ZIP codes).
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