Zip Code 78654 — Marble Falls, TX
78654 is a ZIP Code associated with Marble Falls, TX, located within Burnet. The postal region supports an estimated population of 20,650 residents across Data Pending housing units, with a population density of 39.6 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (30.571120, -98.209820)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 78654 |
| Primary City | Marble Falls |
| State / Province | TX |
| County | Burnet |
| Total Population | 20,650 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 39.6 people/sq mi |
| Timezone | America/Chicago |
How 78654 Compares
| Metric | ZIP 78654 | Burnet County | TX State Average |
|---|
| Population | 20,650 | 43,211 | 30,188,035 |
| Median Income | Data Pending | N/A | N/A |
| Population Density | 39.6 /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 →