47 ZIP Code Tabulation Areas in St. Louis County, Missouri. The population-weighted median household income is about $91,952, the median home value about $315,932, and 69.5% of occupied homes are owner-occupied.
- 47
- ZIP codes
- 1.1M
- Population
- 53
- Data points
St. Louis County at a glance
- $91,952
- Median household income
- $315,932
- Median home value
- 40.3
- Median age
- 69.5%
- Owner-occupied
- 478,695
- Housing units
Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.
Top 5 St. Louis County ZIP codes by median household income| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 63131 | Country Life Acres | 17,935 | 93.7% | $225,493 |
| 2 | 63005 | Chesterfield | 19,779 | 90.4% | $198,469 |
| 3 | 63124 | Clayton | 10,839 | 76.1% | $193,942 |
| 4 | 63038 | Ellisville | 7,107 | 93.8% | $186,450 |
| 5 | 63122 | Crestwood | 41,634 | 81.9% | $136,385 |
Top 5 St. Louis County ZIP codes by population| # | ZIP | City | Population | Homeowner % | Median HH $ |
|---|
| 1 | 63021 | Ballwin | 55,666 | 80.7% | $120,177 |
| 2 | 63129 | Mehlville | 51,553 | 79.2% | $94,888 |
| 3 | 63031 | Florissant | 50,196 | 72.3% | $70,811 |
| 4 | 63123 | Affton | 49,077 | 74.9% | $77,055 |
| 5 | 63026 | Fenton | 45,354 | 80.3% | $97,553 |
Top 5 St. Louis County ZIP codes by Homeowner GDP| # | ZIP | City | Population | Homeowner % | Median HH $ | Homeowner GDP |
|---|
| 1 | 63021 | Ballwin | 55,666 | 80.7% | $120,177 | $2.1B |
| 2 | 63122 | Crestwood | 41,634 | 81.9% | $136,385 | $1.9B |
| 3 | 63017 | Ballwin | 43,243 | 75.9% | $127,095 | $1.7B |
| 4 | 63129 | Mehlville | 51,553 | 79.2% | $94,888 | $1.6B |
| 5 | 63011 | Ballwin | 35,920 | 82.1% | $124,454 | $1.5B |
Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.
Densest: 63105 (Clayton) at 7,509 people/sq mi. Least dense: 63069 (Eureka) at 229 people/sq mi.
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