| Post Office Name | US Post Office |
| Address | 11673 S Highway 21 |
| City | Keller |
| State | Washington |
| Phone Number | (509) 634-4392 |
| Latitude | 48.0003 |
| Longitude | -118.5689 |
99140 US Post Office in Keller, Washington is located at 11673 S Highway 21. The Keller Post Office Number is (509) 634-4392
