8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 63640 | Farmington | 28,800 |
| 63601 | Park Hills | 16,434 |
| 63628 | Bonne Terre | 15,864 |
| 63624 | Bismarck | 3,507 |
| 63653 | Leadwood | 1,418 |
| 63087 | Valles Mines | 1,173 |
| 63036 | French Village | 1,121 |
| 63637 | Doe Run | 894 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in St. Francois County, Missouri (US Census).