52 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Brownsville | 1 | 192,260 | 187,004 | 0.55% | 1,459 | 131.80 | City |
| Harlingen | 2 | 71,264 | 71,879 | -0.17% | 1,777 | 40.11 | City |
| San Benito | 3 | 24,269 | 24,829 | -0.46% | 1,536 | 15.80 | City |
| Los Fresnos | 4 | 8,512 | 8,137 | 0.89% | 1,951 | 4.36 | City |
| La Feria | 5 | 6,705 | 6,837 | -0.39% | 1,555 | 4.31 | City |
| Cameron Park | 6 | 5,547 | 5,716 | -1.67% | 10,178 | 0.55 | CDP |
| Primera | 7 | 5,437 | 5,272 | 0.61% | 1,958 | 2.78 | Town |
| Port Isabel | 8 | 5,181 | 5,023 | 0.62% | 763 | 6.79 | City |
| Laguna Vista | 9 | 3,869 | 3,536 | 1.76% | 802 | 4.83 | Town |
| Laureles | 10 | 3,850 | 4,046 | 0.29% | 802 | 4.80 | CDP |
| Combes | 11 | 3,183 | 3,153 | 0.19% | 980 | 3.25 | Town |
| Rancho Viejo | 12 | 2,860 | 2,830 | 0.21% | 1,394 | 2.05 | Town |
| La Paloma | 13 | 2,782 | 4,140 | -0.29% | 1,292 | 2.15 | CDP |
| Rio Hondo | 14 | 2,479 | 2,019 | 3.85% | 1,468 | 1.69 | City |
| Santa Rosa | 15 | 2,314 | 2,459 | -1.24% | 2,997 | 0.77 | Town |
| South Padre Island | 16 | 2,019 | 2,073 | -0.54% | 751 | 2.69 | Town |
| Encantada-Ranchito-El Calaboz | 17 | 2,015 | 1,832 | -0.79% | 766 | 2.63 | CDP |
| Rice Tracts | 18 | 1,481 | 540 | 7.16% | 792 | 1.87 | CDP |
| Palm Valley | 19 | 1,325 | 1,407 | -1.19% | 2,216 | 0.60 | City |
| Los Indios | 20 | 1,005 | 1,014 | -0.2% | 536 | 1.88 | Town |
| Laguna Heights | 21 | 980 | 1,778 | -14.63% | 6,087 | 0.16 | CDP |
| Reid Hope King | 22 | 961 | 1,008 | 1.26% | 3,337 | 0.29 | CDP |
| Indian Lake | 23 | 884 | 843 | 0.91% | 3,843 | 0.23 | Town |
| La Tina Ranch | 24 | 752 | 953 | 1.21% | 107 | 7.03 | CDP |
| Solis | 25 | 732 | 638 | 2.09% | 439 | 1.67 | CDP |
| Orason | 26 | 714 | 555 | 5.78% | 2,164 | 0.33 | CDP |
| Arroyo Colorado Estates | 27 | 706 | 670 | -2.62% | 654 | 1.08 | CDP |
| Olmito | 28 | 690 | 1,255 | -4.83% | 1,078 | 0.64 | CDP |
| Bluetown | 29 | 685 | 562 | 3.32% | 233 | 2.94 | CDP |
| Las Palmas II | 30 | 661 | 1,256 | -8.7% | 2,132 | 0.31 | CDP |
| Bayview | 31 | 579 | 476 | 3.76% | 149 | 3.88 | Town |
| Juarez | 32 | 565 | 1,787 | -5.04% | 2,825 | 0.20 | CDP |
| Santa Maria | 33 | 551 | 724 | -2.13% | 1,940 | 0.28 | CDP |
| South Point | 34 | 493 | 1,197 | -10.69% | 351 | 1.41 | CDP |
| Santa Rosa | 35 | 422 | 320 | 2.93% | 5,481 | 0.08 | CDP |
| Bixby | 36 | 408 | 604 | -1.45% | 260 | 1.57 | CDP |
| Villa Pancho | 37 | 368 | 378 | -7.07% | 1,252 | 0.29 | CDP |
| San Pedro | 38 | 317 | 182 | -4.52% | 261 | 1.21 | CDP |
| Arroyo Gardens | 39 | 281 | 198 | -4.1% | 71 | 3.94 | CDP |
| Zapata Ranch | 40 | 280 | 216 | 4.09% | 199 | 1.41 | CDP |
| Green Valley Farms | 41 | 267 | 409 | -20.06% | 69 | 3.86 | CDP |
| La Feria North | 42 | 251 | 233 | 1.21% | 220 | 1.14 | CDP |
| Los Fresnos | 43 | 246 | 24 | 6.96% | 1,359 | 0.18 | CDP |
| Villa Sol | 44 | 216 | 141 | 0.93% | 1,143 | 0.19 | CDP |
| Ratamosa | 45 | 107 | 99 | -7.76% | 53 | 2.04 | CDP |
| Lasana | 46 | 99 | 149 | 7.61% | 121 | 0.82 | CDP |
| Chula Vista | 47 | 79 | 135 | -15.05% | 432 | 0.18 | CDP |
| Del Mar Heights | 48 | 79 | 163 | -3.66% | 181 | 0.44 | CDP |
| Yznaga | 49 | 55 | 56 | 7.84% | 10 | 5.45 | CDP |
| Tierra Bonita | 50 | 45 | 65 | -11.76% | 50 | 0.91 | CDP |
| Iglesia Antigua | 51 | 12 | 212 | -68.42% | 6 | 2.11 | CDP |
| Santa Monica | 52 | 10 | 11 | 11.11% | 10 | 0.99 | CDP |
Brownsville is the largest city in Cameron County, with a population of 192,260.
Santa Monica is the smallest city in Cameron County.
There are 52 cities in Cameron County, Texas.