Riverton zip code
Zip code in Riverton, WA
The location Riverton belongs to King County, state of Washington. Riverton has been assigned with the zip code 98188.
The location name Riverton is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Seattle, the official name of the location. You can also use any of the following names: Seatac, Tukwila.
| Zip code | Type | Population |
|---|---|---|
| 98188 | STANDARD | 24,250 |
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