Tri Cities zip code
Zip code in Tri Cities, WA
The location Tri Cities belongs to Franklin County, state of Washington. Tri Cities has been assigned with the zip code 99302.
The location name Tri Cities is listed as acceptable by the US Postal Service so it can be used in your mailings just fine. You can also use any of the following names: Tri Cities.| Zip code | Type | Population |
|---|---|---|
| 99302 | PO BOX | 2,500 |
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