| Post Office Name | US Post Office |
| Address | 220 NE Main St |
| City | Washtucna |
| State | Washington |
| Phone Number | (509) 646-3376 |
| Latitude | 46.8820 |
| Longitude | -118.2369 |
99371 US Post Office in Washtucna, Washington is located at 220 NE Main St. The Washtucna Post Office Number is (509) 646-3376
