| Locality | Post Code |
|---|---|
| Mitchell, Madison | 62040 |
| Moro, Madison | 62067 |
| New Douglas, Madison | 62074 |
| Newport, Madison | 62060 |
| Pontoon Beach, Madison | 62040 |
| Prairietown, Madison | 62097 |
| Rosewood, Madison | 62024 |
| Roxana, Madison | 62084 |
| Saint Jacob, Madison | 62281 |
| South Roxana, Madison | 62087 |
| State Park Place, Madison | 62234 |
| Troy, Madison | 62294 |
| Venice, Madison | 62090 |
| Wood River, Madison | 62095 |
| Worden, Madison | 62097 |