7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 68850 | Lexington | 12,175 |
| 69130 | Cozad | 5,079 |
| 69138 | Gothenburg | 4,111 |
| 68863 | Overton | 1,360 |
| 68878 | Sumner | 595 |
| 68834 | Eddyville | 180 |
| 69171 | Willow Island | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Dawson County, Nebraska (US Census).