63121 vs 63123 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 63121, Orange = ZIP 63123.
Quick verdict: ZIP 63121 is more affordable rent, more diverse. ZIP 63123 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
Quick Facts
ZIP 63121
Normandy city, MO
View full profile →- Population24,571
- Median Income$41,285
- Median Home Value$94k
- Median Rent$726
- Median Age35.2 yrs
- Poverty Rate23.6%
ZIP 63123
Affton CDP, MO
View full profile →- Population49,826
- Median Income$74,187
- Median Home Value$205k
- Median Rent$865
- Median Age41.0 yrs
- Poverty Rate7.4%
Visual comparison (same scale)
Population
24,57149,826
Median Income
$41,285$74,187
Median Home Value
$94k$205k
Median Rent
$726$865
Median Age
35.2 yrs41.0 yrs
Poverty Rate
23.6%7.4%
Demographics
ZIP 63121
Normandy city, MO
View full profile →- White %14.1%
- Black %79.8%
- Asian %1.6%
- Hispanic %1.7%
- Age 0–17 %21.9%
- Age 18–64 %60.9%
- Age 65+ %17.2%
- Bachelor's+ %21.9%
- Diversity Index34/100
ZIP 63123
Affton CDP, MO
View full profile →- White %83.5%
- Black %3.6%
- Asian %4.9%
- Hispanic %4.7%
- Age 0–17 %18.8%
- Age 18–64 %62.0%
- Age 65+ %19.2%
- Bachelor's+ %36.0%
- Diversity Index30/100
Visual comparison (same scale)
White %
14.1%83.5%
Black %
79.8%3.6%
Asian %
1.6%4.9%
Hispanic %
1.7%4.7%
Age 0–17 %
21.9%18.8%
Age 18–64 %
60.9%62.0%
Age 65+ %
17.2%19.2%
Bachelor's+ %
21.9%36.0%
Diversity Index
34/10030/100
Economy
ZIP 63121
Normandy city, MO
View full profile →- Median Income$41,285
- Unemployment %12.1%
- IRS Net Migration+1,111
- Work From Home %9.3%
ZIP 63123
Affton CDP, MO
View full profile →- Median Income$74,187
- Unemployment %2.5%
- IRS Net Migration+2,252
- Work From Home %11.4%
Visual comparison (same scale)
Median Income
$41,285$74,187
Unemployment %
12.1%2.5%
IRS Net Migration
+1,111+2,252
Work From Home %
9.3%11.4%
Housing
ZIP 63121
Normandy city, MO
View full profile →- Median Home Value$94k
- Median Rent$726
- Owner Occupied %53.0%
- Broadband %81.6%
- Vacant %14.3%
- Median Year Built1952
ZIP 63123
Affton CDP, MO
View full profile →- Median Home Value$205k
- Median Rent$865
- Owner Occupied %74.0%
- Broadband %91.7%
- Vacant %5.8%
- Median Year Built1960
Visual comparison (same scale)
Median Home Value
$94k$205k
Median Rent
$726$865
Owner Occupied %
53.0%74.0%
Broadband %
81.6%91.7%
Vacant %
14.3%5.8%
Median Year Built
19521960
Climate & Location
ZIP 63121
Normandy city, MO
View full profile →- Snow Days/Year0 days
- Elevation (ft)531 ft
- Nearest Airport4.7 miles (7.5 km)
- Distance to Coast229.5 miles (369.4 km)
ZIP 63123
Affton CDP, MO
View full profile →- Snow Days/Year0 days
- Elevation (ft)515 ft
- Nearest Airport14.1 miles (22.7 km)
- Distance to Coast239.9 miles (386.1 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
531 ft515 ft
Nearest Airport
4.7 miles (7.5 km)14.1 miles (22.7 km)
Distance to Coast
229.5 miles (369.4 km)239.9 miles (386.1 km)
Infrastructure
ZIP 63121
Normandy city, MO
View full profile →- Work From Home %9.3%
- Walkability (0–100)61
- Broadband %81.6%
ZIP 63123
Affton CDP, MO
View full profile →- Work From Home %11.4%
- Walkability (0–100)52
- Broadband %91.7%
Visual comparison (same scale)
Work From Home %
9.3%11.4%
Walkability (0–100)
6152
Broadband %
81.6%91.7%
Frequently Asked Questions
How do ZIP 63121 and 63123 compare?
ZIP 63121 is more affordable rent, more diverse. ZIP 63123 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share.
What do the blue and orange colors mean?
Blue represents the first ZIP (63121), orange the second (63123). 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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