21 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Irving | Dallas County | 252,750 |
| Iowa Colony | Brazoria County | 18,985 |
| Ingleside | San Patricio County | 10,499 |
| Iowa Park | Wichita County | 6,600 |
| Indian Hills | Hidalgo County | 3,337 |
| Inez | Victoria County | 2,519 |
| Italy | Ellis County | 2,161 |
| Idalou | Lubbock County | 2,051 |
| Itasca | Hill County | 2,001 |
| Ingram | Kerr County | 1,881 |
| Ivanhoe | Fannin County | 1,407 |
| Iraan | Pecos County | 955 |
| Indian Springs | Polk County | 890 |
| Indian Lake | Cameron County | 884 |
| Ingleside Bay | San Patricio County | 597 |
| Iola | Grimes County | 355 |
| Iredell | Bosque County | 324 |
| Industry | Austin County | 292 |
| Imperial | Pecos County | 253 |
| Impact | Taylor County | 21 |
| Iglesia Antigua | Cameron County | 12 |