| Post Office Name | US Post Office |
| Address | 25228 Baker St |
| City | Black Diamond |
| State | Washington |
| Phone Number | (360) 886-9429 |
| Latitude | 47.3203 |
| Longitude | -121.9829 |
98010 US Post Office in Black Diamond, Washington is located at 25228 Baker St. The Black Diamond Post Office Number is (360) 886-9429
