6 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 97304 | Salem | 34,879 |
| 97338 | Dallas | 23,419 |
| 97361 | Monmouth | 14,488 |
| 97351 | Independence | 11,454 |
| 97344 | Falls City | 1,534 |
| 97371 | Rickreall | 694 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in Polk County, Oregon (US Census).