Saint Charles, Missouri ZIP Codes
- ZIP records
3 - Sum of listed ZIP population estimates
141,951 - Counties represented
1 - Population range
43,195–52,667 per ZIP
Population sum includes positive estimates in these ZIP records; it is not an official city population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | County | Population estimate |
|---|---|---|---|---|
| 1 | 63301 | Saint Charles | St. Charles | 52,667 |
| 2 | 63303 | Saint Charles | St. Charles | 46,089 |
| 3 | 63304 | Saint Charles | St. Charles | 43,195 |
Counties represented
All ZIP Codes in Saint Charles
Browse all ZIP data for Missouri
Methodology: ZIP records are grouped by the source file's primary city and state fields. Population ranges and sums use positive ZIP-level estimates; sums should not be read as official city totals. County links use each record's listed county assignment.