Winchester zip code
Zip code in Winchester, WA
The location Winchester belongs to Grant County, state of Washington. Winchester has been assigned with the zip code 98848.
The location name Winchester is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Quincy, the official name of the location. You can also use any of the following names: George.
| Zip code | Type | Population |
|---|---|---|
| 98848 | STANDARD | 13,780 |
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