Wallingford zip code
Zip code in Wallingford, WA
The location Wallingford belongs to King County, state of Washington. Wallingford has been assigned with the zip code 98103.
The location name Wallingford 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.
| Zip code | Type | Population |
|---|---|---|
| 98103 | STANDARD | 45,490 |
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