7 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Marble Falls | 1 | 10,581 | 7,077 | 5.84% | 640 | 17 | City |
| Burnet | 2 | 7,065 | 6,476 | 1.41% | 673 | 10 | City |
| Granite Shoals | 3 | 5,549 | 5,152 | 1.2% | 785 | 7 | City |
| Bertram | 4 | 2,207 | 1,646 | 4.45% | 1,175 | 2 | City |
| Meadowlakes | 5 | 1,820 | 1,888 | -0.6% | 2,427 | 1 | City |
| Cottonwood Shores | 6 | 1,787 | 1,429 | 3.47% | 1,669 | 1 | City |
| Highland Haven | 7 | 405 | 419 | -0.49% | 918 | 0 | City |
Marble Falls is the largest city in Burnet County, with a population of 10,581.
Highland Haven is the smallest city in Burnet County, with a population of 405.
There are 7 cities in Burnet County, Texas.