Colfax zip code
Zip code in Colfax, WA
The location Colfax belongs to Whitman County, state of Washington. Colfax has been assigned with the zip code 99111.
Colfax is the official name of the location so if you want to use the US Postal Service you must use that name. You can also use any of the following names: Diamond.
| Zip code | Type | Population |
|---|---|---|
| 99111 | STANDARD | 3,730 |
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