St. Clair County, Missouri ZIP Codes
- ZIP records
6 - Cities represented
6 - Sum of listed ZIP population estimates
8,861
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 64776 | Osceola | 3,374 |
| 2 | 64724 | Appleton City | 1,999 |
| 3 | 64763 | Lowry City | 1,676 |
| 4 | 64738 | Collins | 1,368 |
| 5 | 64780 | Rockville | 364 |
| 6 | 64781 | Roscoe | 80 |
Cities in St. Clair County
ZIP Directory
Browse all ZIP data for Missouri
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.