ZIP Code 99403 – Clarkston, Washington
The 99403 ZIP Code belongs to Clarkston, Washington. The population in this 99403 ZIP code is 20,483. The latitude is 46.38114 and longitude is -117.25974 in 99403 Clarkston, Washington. The time zone for this 99403 ZIP code is America/Los_Angeles.
| City | Clarkston |
| Zip Code | 99403 |
| State | Washington |
| County | Asotin |
| Population | 20,483 |
| Latitude | 46.38114 |
| Longitude | -117.25974 |
| Time Zone | America/Los_Angeles |