4 cities
| City | Rank | 2026 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| New Braunfels | 1 | 128,874 | 91,683 | 5.05% | 2,862 | 45 | City |
| Bulverde | 2 | 7,920 | 5,753 | 4.78% | 501 | 16 | City |
| Garden Ridge | 3 | 4,464 | 4,205 | 0.97% | 625 | 7 | City |
| Spring Branch | 4 | 276 | 210 | 4.15% | 135 | 2 | City |
New Braunfels is the largest city in Comal County, with a population of 128,874.
Spring Branch is the smallest city in Comal County, with a population of 276.
There are 4 cities in Comal County, Texas.