| Locality | Post Code |
|---|---|
| Anderson, Phelps | 68940 |
| Atlanta, Phelps | 68923 |
| Bertrand, Phelps | 68927 |
| Elm Creek, Phelps | 68836 |
| Funk, Phelps | 68940 |
| Holdrege, Phelps | 68949 |
| Holdridge, Phelps | 68949 |
| Industry, Phelps | 68923 |
| Industry-Rock Falls, Phelps | 68923 |
| Laird, Phelps | 68958 |
| Loomis, Phelps | 68958 |
| Overton, Phelps | 68863 |
| Prairie, Phelps | 68949 |
| Rock Falls, Phelps | 68923 |
| Sheridan, Phelps | 68949 |
| Westmark, Phelps | 68927 |
| Westside, Phelps | 68927 |
| Wilcox, Phelps | 68982 |
| Williamsburg, Phelps | 68927 |