Post Offices List in Walla Walla County, Washington:
| Burbank Post Office | 114 2nd Ave, Burbank, WA 99323 |
| College Place Post Office | 500 S College Ave, College Place, WA 99324 |
| Dixie Post Office | 10202 E Highway 12, Dixie, WA 99329 |
| Prescott Post Office | 106 S D St, Prescott, WA 99348 |
| Touchet Post Office | 69 Touchet North Rd, Touchet, WA 99360 |
| Waitsburg Post Office | 224 Main St, Waitsburg, WA 99361 |
| Walla Walla Post Office | 128 N 2nd Ave, Walla Walla, WA 99362 |
| Wallula Post Office | 150 N Columbia Way, Wallula, WA 99363 |