4 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 78654 | Marble Falls | 19,379 |
| 78611 | Burnet | 13,815 |
| 78605 | Bertram | 7,463 |
| 78608 | Briggs | 298 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 4 ZCTAs in Burnet County, Texas (US Census).