Oregon County, Missouri ZIP Codes
- ZIP records
5 - Cities represented
5 - Sum of listed ZIP population estimates
8,434
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 | 65791 | Thayer | 4,425 |
| 2 | 65606 | Alton | 2,381 |
| 3 | 65692 | Koshkonong | 1,068 |
| 4 | 65778 | Myrtle | 430 |
| 5 | 65690 | Couch | 130 |
Cities in Oregon 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.