7 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 55947 | La Crescent | 7,319 |
| 55921 | Caledonia | 4,793 |
| 55943 | Houston | 3,070 |
| 55974 | Spring Grove | 1,998 |
| 55941 | Hokah | 1,084 |
| 55919 | Brownsville | 1,008 |
| 55931 | Eitzen | 414 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 7 ZCTAs in Houston County, Minnesota (US Census).