ZIP Code 99403
Clarkston · Asotin, Washington
99403 is the ZIP code of Clarkston in Asotin, Washington, United States.
- ZIP Code
- 99403
- County
- Asotin
- State
- Washington
- Country
- United States
Place with ZIP code 99403
| Place | County | Location |
|---|---|---|
| Clarkston | Asotin | 46.395, -117.064 |
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 99403?
Clarkston.
Which county and state is 99403 in?
Asotin, Washington, United States.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.