6 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 63361 | Montgomery City | 4,477 |
| 63384 | Wellsville | 2,148 |
| 63363 | New Florence | 1,089 |
| 63333 | Bellflower | 821 |
| 63350 | High Hill | 723 |
| 65069 | Rhineland | 636 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in Montgomery County, Missouri (US Census).