7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 51534 | Glenwood | 9,238 |
| 51551 | Malvern | 1,877 |
| 51571 | Silver City | 858 |
| 51561 | Pacific Junction | 716 |
| 51541 | Henderson | 402 |
| 51540 | Hastings | 246 |
| 51554 | Mineola | 167 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Mills County, Iowa (US Census).