US location post office
ZIP Code 78954
- Zip Code: 78954
- Type: Standard
- Official USPS city name: Round Top
- Official USPS State Code: TX
- Official State Name: Texas
- ZCTA: TRUE
- Population: 1110.0
- Density: 5.7
- Primary Official County Code: 48149
- Primary Official County Name: Fayette
- Official County Name: Fayette| Austin
- Official County Code: 48149| 48015
- Imprecise: FALSE
- Military: FALSE
- Timezone: America/Chicago (14:51 PM Friday, July 25 2025-07-25 (GMT -0500))
- Geo Point: 30.04587, -96.69959
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