| Ortschaft | Postleitzahl |
|---|---|
| Center, Ralls | 63436 |
| Green Lawn, Ralls | 63462 |
| Hannibal, Ralls | 63401 |
| Madisonville, Ralls | 63436 |
| Monroe City, Ralls | 63456 |
| New London, Ralls | 63459 |
| Perry, Ralls | 63462 |
| Salt River, Ralls | 63462 |
| Saverton, Ralls | 63467 |
| Vandalia, Ralls | 63382 |