5 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 68450 | Tecumseh | 3,111 |
| 68443 | Sterling | 1,146 |
| 68329 | Cook | 589 |
| 68348 | Elk Creek | 366 |
| 68332 | Crab Orchard | 106 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Johnson County, Nebraska (US Census).