12 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Brownwood | 1 | 18,760 | 18,886 | -0.06% | 1,257 | 15 | City |
| Brownwood | 2 | 18,760 | 18,820 | -0.06% | 1,257 | 15 | City |
| Early | 3 | 3,191 | 3,076 | 0.54% | 856 | 4 | City |
| Early | 4 | 3,191 | 3,104 | 0.54% | 856 | 4 | City |
| Lake Brownwood | 5 | 1,741 | 1,461 | 0.81% | 306 | 6 | CDP |
| Bangs | 6 | 1,533 | 1,546 | -0.13% | 1,025 | 1 | City |
| Bangs | 7 | 1,533 | 1,541 | -0.13% | 1,025 | 1 | City |
| Thunderbird Bay | 8 | 792 | 613 | 1.15% | 312 | 3 | CDP |
| Blanket | 9 | 358 | 366 | -0.56% | 555 | 1 | Town |
| Blanket | 10 | 358 | 367 | -0.56% | 555 | 1 | Town |
| Zephyr | 11 | 295 | 191 | 7.27% | 195 | 2 | CDP |
| May | 12 | 280 | 285 | 7.28% | 188 | 1 | CDP |
Brownwood is the largest city in Brown County, with a population of 18,760.
May is the smallest city in Brown County, with a population of 280.
There are 12 cities in Brown County, Texas.