70 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Rio Grande City | 1 | 15,572 | 15,341 | 0.3% | 1,372 | 11 | City |
| Roma | 2 | 11,659 | 11,537 | 0.21% | 1,988 | 6 | City |
| Escobares | 3 | 2,591 | 2,579 | 0.08% | 969 | 3 | City |
| Las Lomas | 4 | 1,918 | 1,963 | -4.1% | 4,880 | 0 | CDP |
| Mikes | 5 | 1,477 | 1,105 | 2.57% | 11,275 | 0 | CDP |
| La Grulla | 6 | 1,237 | 1,237 | 0% | 1,320 | 1 | City |
| Mi Ranchito Estate | 7 | 1,229 | 946 | 5.49% | 3,927 | 0 | CDP |
| Nina | 8 | 1,030 | 478 | 6.19% | 24,524 | 0 | CDP |
| Valle Vista | 9 | 903 | 738 | 3.32% | 11,288 | 0 | CDP |
| El Refugio | 10 | 839 | 512 | 4.22% | 1,345 | 1 | CDP |
| Alto Bonito Heights | 11 | 822 | 331 | 4.05% | 16,118 | 0 | CDP |
| La Puerta | 12 | 735 | 778 | 0.96% | 2,326 | 0 | CDP |
| El Rancho Vela | 13 | 674 | 890 | 4.17% | 5,225 | 0 | CDP |
| Santa Cruz | 14 | 650 | 205 | 7.08% | 23,214 | 0 | CDP |
| Olivia Lopez Gutierrez | 15 | 550 | 28 | 7.21% | 61,111 | 0 | CDP |
| El Cenizo | 16 | 470 | 215 | 3.07% | 15,667 | 0 | CDP |
| Garza-Salinas II | 17 | 461 | 640 | -3.76% | 5,835 | 0 | CDP |
| West Alto Bonito | 18 | 457 | 372 | -3.38% | 3,974 | 0 | CDP |
| East Alto Bonito | 19 | 446 | 742 | -5.51% | 3,982 | 0 | CDP |
| Barrera | 20 | 387 | 230 | 5.16% | 18,429 | 0 | CDP |
| Pablo Pena | 21 | 386 | 33 | 7.22% | 24,125 | 0 | CDP |
| J.F. Villareal | 22 | 385 | 304 | 5.19% | 24,063 | 0 | CDP |
| Los Barreras | 23 | 367 | 322 | 1.38% | 1,603 | 0 | CDP |
| Eugenio Saenz | 24 | 346 | 247 | 3.59% | 11,931 | 0 | CDP |
| Hilltop | 25 | 345 | 105 | 7.14% | 7,041 | 0 | CDP |
| La Escondida | 26 | 333 | 280 | 3.74% | 5,741 | 0 | CDP |
| Olmito Olmito | 27 | 287 | 263 | 0.35% | 10,250 | 0 | CDP |
| Fronton | 28 | 285 | 167 | 2.52% | 682 | 0 | CDP |
| La Esperanza | 29 | 262 | 74 | 1.16% | 9,357 | 0 | CDP |
| San Isidro | 30 | 259 | 103 | 0.39% | 83 | 3 | CDP |
| La Rosita | 31 | 251 | 133 | 7.26% | 3,638 | 0 | CDP |
| Ranchitos Norte | 32 | 240 | 397 | 3.9% | 588 | 0 | CDP |
| Camargito | 33 | 225 | 266 | -4.66% | 3,041 | 0 | CDP |
| Chaparrito | 34 | 224 | 144 | 3.23% | 2,333 | 0 | CDP |
| Campo Verde | 35 | 213 | 169 | 2.4% | 6,455 | 0 | CDP |
| North Escobares | 36 | 213 | 67 | 2.9% | 295 | 1 | CDP |
| La Minita | 37 | 191 | 104 | 0.53% | 365 | 1 | CDP |
| Sammy Martinez | 38 | 153 | 116 | 2% | 489 | 0 | CDP |
| La Victoria | 39 | 152 | 76 | -1.3% | 498 | 0 | CDP |
| Delmita | 40 | 151 | 145 | -2.58% | 48 | 3 | CDP |
| Los Alvarez | 41 | 151 | 367 | -6.21% | 1,606 | 0 | CDP |
| Fronton Ranchettes | 42 | 147 | 126 | 2.08% | 2,042 | 0 | CDP |
| Miguel Barrera | 43 | 141 | 236 | 0.71% | 8,294 | 0 | CDP |
| Benjamin Perez | 44 | 138 | 118 | 7.81% | 6,571 | 0 | CDP |
| Airport Heights | 45 | 137 | 91 | -1.44% | 3,425 | 0 | CDP |
| El Castillo | 46 | 128 | 64 | -3.03% | 4,571 | 0 | CDP |
| Rancho Viejo | 47 | 128 | 189 | -5.19% | 3,459 | 0 | CDP |
| Evergreen | 48 | 110 | 39 | 6.8% | 10,000 | 0 | CDP |
| Lago Vista | 49 | 110 | 43 | 6.8% | 249 | 0 | CDP |
| La Carla | 50 | 106 | 299 | 7.07% | 1,472 | 0 | CDP |
| Loma Vista | 51 | 106 | 28 | -3.64% | 8,154 | 0 | CDP |
| E. Lopez | 52 | 105 | 225 | 7.14% | 5,000 | 0 | CDP |
| El Quiote | 53 | 92 | 208 | -8% | 1,804 | 0 | CDP |
| Villarreal | 54 | 80 | 46 | -3.61% | 1,176 | 0 | CDP |
| Quesada | 55 | 78 | 57 | 8.33% | 8,667 | 0 | CDP |
| El Chaparral | 56 | 75 | 413 | -25.74% | 765 | 0 | CDP |
| Longoria | 57 | 75 | 72 | 7.14% | 4,412 | 0 | CDP |
| Salineño | 58 | 72 | 159 | -11.11% | 1,059 | 0 | CDP |
| Guadalupe Guerra | 59 | 69 | 43 | 7.81% | 4,600 | 0 | CDP |
| Salineño North | 60 | 67 | 80 | -5.63% | 342 | 0 | CDP |
| La Loma Falcon | 61 | 64 | 26 | 6.67% | 744 | 0 | CDP |
| Pena | 62 | 64 | 99 | -5.88% | 4,267 | 0 | CDP |
| La Chuparosa | 63 | 58 | 44 | 7.41% | 5,800 | 0 | CDP |
| El Brazil | 64 | 46 | 26 | 6.98% | 254 | 0 | CDP |
| Manuel Garcia | 65 | 21 | 234 | -36.36% | 583 | 0 | CDP |
| Santel | 66 | 13 | 12 | 8.33% | 464 | 0 | CDP |
| Gutierrez | 67 | 11 | 49 | 10% | 212 | 0 | CDP |
| Ramos | 68 | 10 | 92 | -41.18% | 323 | 0 | CDP |
| Victoria Vera | 69 | 5 | 31 | -58.33% | 556 | 0 | CDP |
| El Socio | 70 | 1 | 14 | -90% | 91 | 0 | CDP |
Rio Grande City is the largest city in Starr County, with a population of 15,572.
El Socio is the smallest city in Starr County, with a population of 1.
There are 70 cities in Starr County, Texas.