Oso zip code
Zip code in Oso, WA
The location Oso belongs to Snohomish County, state of Washington. Oso has been assigned with the zip code 98223.
The location name Oso is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Arlington, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 98223 | STANDARD | 40,990 |
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