Washington zip code
Zip code in Washington, CO
The location Washington belongs to Alamosa County, state of Colorado. Washington has been assigned with the zip code 81101.
The location name Washington is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Alamosa, the official name of the location. You can also use any of the following names: Great Sand Dunes National Mo, Sand Dunes Mo.
| Zip code | Type | Population |
|---|---|---|
| 81101 | STANDARD | 12,230 |
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