| Locality | Post Code |
|---|---|
| Cozad, Dawson | 69130 |
| Darr, Dawson | 69130 |
| Eddyville, Dawson | 68834 |
| Elm Creek, Dawson | 68836 |
| Eustis, Dawson | 69028 |
| Farnam, Dawson | 69029 |
| Gothenburg, Dawson | 69138 |
| Johnson Lake, Dawson | 68937 |
| Lexington, Dawson | 68850 |
| Overton, Dawson | 68863 |
| Sumner, Dawson | 68878 |
| Willow Island, Dawson | 69171 |