6 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 63383 | Warrenton | 15,041 |
| 63390 | Wright City | 10,982 |
| 63357 | Marthasville | 6,899 |
| 63351 | Jonesburg | 1,581 |
| 63380 | Truesdale | 929 |
| 63381 | Truxton | 666 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in Warren County, Missouri (US Census).