| Zip Code | City | Population ↓ |
|---|---|---|
| 68920 | Alma | 1,397 |
| 68966 | Orleans | 460 |
| 68971 | Republican City | 377 |
| 68977 | Stamford | 319 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Harlan County, Nebraska (US Census).