Post Offices List in Polk County, Oregon:
| Dallas Post Office | 768 Sw Church St, Dallas, OR 97338 |
| Falls City Post Office | 123 Parry St, Falls City, OR 97344 |
| Grand Ronde Post Office | 8650 Grand Ronde Rd, Grand Ronde, OR 97347 |
| Independence Post Office | 216 S 2nd St, Independence, OR 97351 |
| Monmouth Post Office | 437 Clay St E, Monmouth, OR 97361 |
| Rickreall Post Office | 9750 Church St, Rickreall, OR 97371 |
| West Salem Post Office | 400 Glen Creek Rd Nw, Salem, OR 97304 |