6 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 97304 | Salem | 34,148 |
| 97338 | Dallas | 23,201 |
| 97361 | Monmouth | 13,557 |
| 97351 | Independence | 11,144 |
| 97344 | Falls City | 1,605 |
| 97371 | Rickreall | 607 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in Polk County, Oregon (US Census).