8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 65051 | Linn | 4,612 |
| 65035 | Freeburg | 1,547 |
| 65016 | Bonnots Mill | 1,307 |
| 65054 | Loose Creek | 1,185 |
| 65024 | Chamois | 1,158 |
| 65085 | Westphalia | 1,135 |
| 65048 | Koeltztown | 153 |
| 65062 | Mount Sterling | 20 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Osage County, Missouri (US Census).