Postal reference / United States
78657Horseshoe Bay, Texas
ZIP code 78657 is a United States postal code for Horseshoe Bay, Texas. Its county association is Llano County. The map reference point is at 30.5443, -98.3739.
- State / territory
- Texas
- Recorded place name
- Horseshoe Bay
- County association
- Llano
- Estimated coordinate
- 30.5443, -98.3739
View on OpenStreetMap - ZIP prefix
- 786 · 75 ZIP codes share it
- Data source
- GeoNames postal reference, snapshot September 26, 2026
GeoNames reference data. County associations may not include every intersecting county, place names are postal names rather than legal boundaries, and coordinates are approximate. This is not address validation.
Area
- Land area
- 38.767 sq mi (2023 Census Gazetteer)
Figures are for the ZIP Code Tabulation Area (ZCTA) that most closely matches this ZIP code, not an exact match to USPS delivery boundaries. Source: U.S. Census Bureau, 2023 Gazetteer + 2023 ACS 5-Year Estimates, retrieved 2026-09-27. How to read this data.
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Browse the other 2,599 ZIP codes recorded for Texas, sorted by code with place and county.
Texas directoryNearby ZIP code reference points
| ZIP code | Place | State | County association | Miles |
|---|---|---|---|---|
| 78654 | Marble Falls | TX | Burnet | 6.3 |
| 78663 | Round Mountain | TX | Blanco | 7.9 |
| 78639 | Kingsland | TX | Llano | 9.5 |
| 78609 | Buchanan Dam | TX | Llano | 14.8 |
| 78636 | Johnson City | TX | Blanco | 17.2 |
| 78611 | Burnet | TX | Burnet | 17.3 |
| 78675 | Willow City | TX | Gillespie | 18.4 |
| 78643 | Llano | TX | Llano | 18.4 |
Straight-line distance between reference points. Nearby points do not prove that ZIP areas touch.
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