Dayton zip code
Zip code in Dayton, WA
The location Dayton belongs to Columbia County, state of Washington. Dayton has been assigned with the zip code 99328.
Dayton is the official name of the location so if you want to use the US Postal Service you must use that name.
| Zip code | Type | Population |
|---|---|---|
| 99328 | STANDARD | 2,930 |
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