Knoxville zip code
Zip code in Knoxville, TX
The location Knoxville belongs to Gillespie County, state of Texas. Knoxville has been assigned with the zip code 78631.
The location name Knoxville is listed as unacceptable by the US Postal Service so any mailing should avoid it. Instead you can use Harper, the official name of the location.
| Zip code | Type | Population |
|---|---|---|
| 78631 | STANDARD | 2,550 |
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