US location post office
ZIP Code 79781
- Zip Code: 79781
- Type: POBox
- Official USPS city name: Sheffield
- Official USPS State Code: TX
- Official State Name: Texas
- ZCTA: TRUE
- Population: 263.0
- Density: 0.2
- Primary Official County Code: 48371
- Primary Official County Name: Pecos
- Official County Name: Pecos| Terrell| Crockett
- Official County Code: 48371| 48443| 48105
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/Chicago (02:36 AM Sunday, July 26 2026-07-26 (GMT -0500))
- Geo Point: 30.59596, -101.77778
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