About ZIP code 99110
The ZIP code 99110 routes mail to Clayton in the Washington region of United States. Use it as the postal segment of any address in this area, and confirm unusual addresses with the local postal operator.
United States ยท ZIP code
99110 - Clayton
ZIP code 99110 is Clayton in Washington, United States.
| ZIP code | 99110 |
| Place | Clayton |
| Region | Washington |
| District | Stevens |
| Country | United States (US) |
| Coordinates | 48.0071, -117.5579 (map) |