| City | County | 2026 Pop. ↓ |
|---|---|---|
| Killeen | Bell County | 163,533 |
| Kyle | Hays County | 74,790 |
| Keller | Tarrant County | 46,301 |
| Katy | Fort Bend County | 29,713 |
| Kerrville | Kerr County | 25,803 |
| Kingsville | Kleberg County | 24,547 |
| Kilgore | Gregg County | 13,581 |
| Kaufman | Kaufman County | 11,318 |
| Kennedale | Tarrant County | 11,187 |
| Kirby | Bexar County | 8,221 |
| Kingsland | Llano County | 7,527 |
| Keene | Johnson County | 7,239 |
| Krum | Denton County | 7,109 |
| Kermit | Winkler County | 5,974 |
| Karnes City | Karnes County | 3,530 |
| Kemah | Galveston County | 3,355 |
| Kenedy | Karnes County | 3,266 |
| Kountze | Hardin County | 2,171 |
| Krugerville | Denton County | 2,076 |
| Kirbyville | Jasper County | 2,032 |
| Kemp | Kaufman County | 1,525 |
| Kerens | Navarro County | 1,509 |
| Kempner | Lampasas County | 1,330 |
| Knippa | Uvalde County | 1,068 |
| Knox City | Knox County | 1,000 |
| Kenefick | Chambers County | 908 |
| Knollwood | Grayson County | 821 |
| Kress | Swisher County | 566 |
| K-Bar Ranch | Duval County | 562 |
| Kosse | Limestone County | 463 |
| Kendleton | Fort Bend County | 421 |
| Kurten | Brazos County | 395 |
| Kennard | Houston County | 287 |
| Kopperl | Bosque County | 155 |
| Kingsbury | Guadalupe County | 144 |
| Kirvin | Freestone County | 114 |