Post Offices List in Benton County, Oregon:
| Alsea Post Office | 140 E Main St, Alsea, OR 97324 |
| Blodgett Post Office | 21412 Highway 20, Blodgett, OR 97326 |
| Corvallis Post Office | 311 Sw 2nd St, Corvallis, OR 97333 |
| Monroe Post Office | 590 Main St, Monroe, OR 97456 |
| Philomath Post Office | 1140 Applegate St, Philomath, OR 97370 |