8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 63435 | Canton | 4,318 |
| 63448 | La Grange | 1,760 |
| 63440 | Ewing | 1,136 |
| 63447 | La Belle | 1,060 |
| 63452 | Lewistown | 1,026 |
| 63457 | Monticello | 389 |
| 63473 | Williamstown | 375 |
| 63438 | Durham | 232 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Lewis County, Missouri (US Census).