There are 20 cities in Caldwell County, Texas.
Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Population | 2020 Population | Annual Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Austin | 1 | 984,567 | 965,827 | 0.48% | 3,017 | 326.4 | City |
| San Marcos | 2 | 72,686 | 68,217 | 1.56% | 1,870 | 38.9 | City |
| Kyle | 3 | 67,911 | 46,458 | 8.57% | 2,093 | 32.5 | City |
| Canyon Lake | 4 | 33,830 | 26,338 | 2.72% | 237 | 142.7 | CDP |
| Buda | 5 | 16,279 | 15,282 | 1.55% | 1,701 | 9.6 | City |
| Lockhart | 6 | 15,639 | 14,354 | 2.1% | 1,002 | 15.6 | City |
| Luling | 7 | 5,811 | 5,583 | 0.99% | 1,055 | 5.5 | City |
| Redwood | 8 | 3,270 | 3,349 | -2.3% | 507 | 6.4 | CDP |
| Wimberley | 9 | 2,881 | 2,881 | 0% | 322 | 9.0 | City |
| Uhland | 10 | 1,893 | 1,605 | 3.95% | 680 | 2.8 | City |
| Rosanky | 11 | 1,735 | 1,225 | 7.7% | 85 | 20.4 | CDP |
| Martindale | 12 | 1,258 | 1,250 | 0.16% | 610 | 2.1 | City |
| Mustang Ridge | 13 | 993 | 951 | 1.02% | 266 | 3.7 | City |
| Waelder | 14 | 962 | 932 | 0.73% | 752 | 1.3 | City |
| Red Rock | 15 | 785 | 402 | 7.68% | 174 | 4.5 | CDP |
| Mountain City | 16 | 691 | 631 | 2.22% | 1,314 | 0.5 | City |
| Niederwald | 17 | 685 | 661 | 0.88% | 187 | 3.7 | City |
| Creedmoor | 18 | 413 | 459 | -2.82% | 54 | 7.6 | City |
| Hays | 19 | 267 | 233 | 3.09% | 1,197 | 0.2 | City |
| Staples | 20 | 183 | 189 | -1.08% | 122 | 1.5 | City |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Austin is the largest city in Caldwell County.
Staples is the smallest city in Caldwell County.
There are 20 cities in Caldwell County, Texas.