| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Seccion Diez | city | Tamaulipas | Mexico | 26.25 | -98.84 | 196 | 1986 |
| Seccion Diez y Seis | city | Tamaulipas | Mexico | 25.84 | -97.53 | 22 | 133060 |
| Seccion Veintiseis | city | Tamaulipas | Mexico | 26.18 | -98.73 | 167 | 771 |
| Sección Mangana | city | Tamaulipas | Mexico | 22.72 | -98.66 | 68 | 894 |
| Sección Veintiséis | city | Tamaulipas | Mexico | 26.20 | -98.92 | 183 | 906 |
| Secretaría de Asentamientos Humanos y Obras Públicas | city | Tamaulipas | Mexico | 23.71 | -99.14 | 1138 | 87355 |
| Segoveno | city | Tamaulipas | Mexico | 25.01 | -99.05 | 830 | 298 |
| Segunda Ampliación Mariano Escobedo | city | Tamaulipas | Mexico | 23.11 | -98.77 | 830 | 966 |
| Segunda Ampliación Ojo de Agua | city | Tamaulipas | Mexico | 22.98 | -99.13 | 321 | 1430 |
| Segunda Unidad Xicotencatl | city | Tamaulipas | Mexico | 23.02 | -98.87 | 357 | 3853 |
| Segundo Sector | city | Tamaulipas | Mexico | 25.98 | -98.08 | 82 | 53318 |
| Seis de Abril | city | Tamaulipas | Mexico | 23.22 | -99.55 | 4484 | 371 |
| Seis de Enero | city | Tamaulipas | Mexico | 25.98 | -98.02 | 75 | 31527 |
| Seis de Enero | city | Tamaulipas | Mexico | 23.12 | -99.46 | 4189 | 596 |
| Seis de Enero | city | Tamaulipas | Mexico | 24.93 | -98.03 | 52 | 596 |
| Seis de Enero (Miguel Hidalgo Segundo) | city | Tamaulipas | Mexico | 24.93 | -98.03 | 52 | 596 |
| Seis de Mayo | city | Tamaulipas | Mexico | 26.00 | -98.03 | 78 | 36884 |
| Seis de Octubre | city | Tamaulipas | Mexico | 23.72 | -98.94 | 830 | 149 |
| Servando Canales | city | Tamaulipas | Mexico | 23.09 | -98.77 | 830 | 996 |
| Servando Canales | city | Tamaulipas | Mexico | 24.01 | -99.19 | 830 | 845 |
| Servando Canales Dos | city | Tamaulipas | Mexico | 22.98 | -98.81 | 383 | 1365 |
| Servando Canales Uno | city | Tamaulipas | Mexico | 23.09 | -98.77 | 830 | 996 |
| Servidores Publicos | city | Tamaulipas | Mexico | 23.73 | -99.11 | 1033 | 88028 |
| Seryjalebo | city | Tamaulipas | Mexico | 22.62 | -98.99 | 830 | 5434 |
| Setenta y Siete | city | Tamaulipas | Mexico | 24.45 | -99.34 | 915 | 749 |
| Severo | city | Tamaulipas | Mexico | 26.32 | -99.02 | 344 | 6014 |
| Seña Vieja | city | Tamaulipas | Mexico | 23.69 | -99.05 | 925 | 44315 |