Upton zip code
Zip code in Upton, TX
The location Upton belongs to Bastrop County, state of Texas. Upton has been assigned with the zip code 78957.
The location name Upton is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Smithville, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 78957 | STANDARD | 8,180 |
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