Colfax, WA zip code
Colfax, Washington uses one zip code: 99111. Most of it is in Whitman County. Together these zip codes are home to about 4K people.
Zip codes
1
Population
4K
All zips combined
Largest zip
99111
4,038 residents
Zip codes in Colfax
| Zip | Type | Population | IncomeMedian income |
|---|---|---|---|
| 99111 | 4,038 | $73,393 |