Zip Code 78657 — Horseshoe Bay, TX
78657 is a ZIP Code associated with Horseshoe Bay, TX, located within Llano. The postal region supports an estimated population of 7,591 residents across Data Pending housing units, with a population density of 75.6 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (30.533280, -98.379060)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 78657 |
| Primary City | Horseshoe Bay |
| State / Province | TX |
| County | Llano |
| Total Population | 7,591 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 75.6 people/sq mi |
| Timezone | America/Chicago |
How 78657 Compares
| Metric | ZIP 78657 | Llano County | TX State Average |
|---|
| Population | 7,591 | 26,211 | 30,188,035 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | 75.6 /sq mi | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →