| Locality | Post Code |
|---|---|
| Abercrombie, Richland | 58001 |
| Barney, Richland | 58008 |
| Christine, Richland | 58015 |
| Colfax, Richland | 58018 |
| Dwight, Richland | 58075 |
| Fairmount, Richland | 58030 |
| Galchutt, Richland | 58075 |
| Great Bend, Richland | 58075 |
| Hankinson, Richland | 58041 |
| Kindred, Richland | 58051 |
| Leonard, Richland | 58052 |
| Lidgerwood, Richland | 58053 |
| Mantador, Richland | 58058 |
| McLeod, Richland | 58057 |
| Mooreton, Richland | 58061 |
| Wahpeton, Richland | 58075 |
| Walcott, Richland | 58077 |
| Wyndmere, Richland | 58081 |