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 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Laredo | 1 | 258,306 | 255,489 | 0.27% | 2,418 | 106.8 | City |
| Rio Bravo | 2 | 4,371 | 4,559 | -1.06% | 6,725 | 0.7 | City |
| El Cenizo | 3 | 2,399 | 2,531 | -1.36% | 4,658 | 0.5 | City |
| Pueblo Nuevo | 4 | 577 | 721 | 0.7% | 991 | 0.6 | CDP |
| Ranchos Penitas West | 5 | 571 | 759 | 0% | 276 | 2.1 | CDP |
| Bruni | 6 | 458 | 383 | 1.1% | 348 | 1.3 | CDP |
| Ranchitos Las Lomas | 7 | 386 | 478 | 2.12% | 106 | 3.6 | CDP |
| Ranchitos East | 8 | 330 | 393 | 2.8% | 5,410 | 0.1 | CDP |
| San Carlos II | 9 | 274 | 347 | 0.37% | 3,859 | 0.1 | CDP |
| San Carlos I | 10 | 219 | 309 | -3.1% | 1,647 | 0.1 | CDP |
| Tanquecitos South Acres | 11 | 213 | 243 | -0.93% | 447 | 0.5 | CDP |
| La Presa | 12 | 204 | 249 | -3.77% | 410 | 0.5 | CDP |
| Mirando City | 13 | 170 | 366 | -7.61% | 535 | 0.3 | CDP |
| Oilton | 14 | 93 | 170 | -16.22% | 66 | 1.4 | CDP |
| Los Altos | 15 | 68 | 141 | -6.85% | 1,789 | 0.0 | CDP |
| Los Veteranos I | 16 | 46 | 48 | 9.52% | 117 | 0.4 | CDP |
| La Moca Ranch | 17 | 40 | 46 | 8.11% | 3 | 15.0 | CDP |
| Colorado Acres | 18 | 37 | 57 | -33.93% | 13 | 2.9 | CDP |
| Sunset Acres | 19 | 29 | 22 | 7.41% | 1,706 | 0.0 | CDP |
| Los Arcos | 20 | 27 | 38 | -20.59% | 131 | 0.2 | CDP |
| Aguilares | 21 | 24 | 0 | 4.35% | 80 | 0.3 | CDP |
| Los Veteranos II | 22 | 15 | 31 | 7.14% | 94 | 0.2 | CDP |
| Hillside Acres | 23 | 8 | 0 | 0% | 34 | 0.2 | CDP |
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.
Laredo is the largest city in Webb County.
Hillside Acres is the smallest city in Webb County.
There are 23 cities in Webb County, Texas.