| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Sebampo | city | Sonora | Mexico | 26.88 | -109.57 | 49 | 9810 |
| Sebampo | city | Sonora | Mexico | 26.87 | -109.55 | 55 | 5064 |
| Sebastiana | city | Sonora | Mexico | 29.21 | -109.46 | 2562 | 149 |
| Sebicuche | city | Sonora | Mexico | 27.65 | -110.13 | 157 | 1043 |
| Seccion Kilometro Ciento Veintiuno | city | Sonora | Mexico | 31.80 | -114.53 | 383 | 1043 |
| Sección Número Veintinueve | city | Sonora | Mexico | 31.13 | -110.94 | 3763 | 298 |
| Sector Bahia | city | Sonora | Mexico | 27.95 | -111.07 | 3 | 5434 |
| Seguayababi | city | Sonora | Mexico | 29.84 | -110.75 | 2575 | 225 |
| Sehua de Huachi | city | Sonora | Mexico | 29.01 | -109.20 | 1669 | 149 |
| Sehuadéhuachi | city | Sonora | Mexico | 29.01 | -109.20 | 1669 | 149 |
| Seis Hectáreas | city | Sonora | Mexico | 26.89 | -109.76 | 26 | 3177 |
| Seis Hermanos | city | Sonora | Mexico | 29.15 | -111.01 | 830 | 61391 |
| Seis de Marzo | city | Sonora | Mexico | 28.62 | -111.50 | 108 | 894 |
| Sejaqui | city | Sonora | Mexico | 27.50 | -108.93 | 1669 | 192 |
| Sejaquí | city | Sonora | Mexico | 27.50 | -108.93 | 1669 | 199 |
| Selva Numero Uno | city | Sonora | Mexico | 29.54 | -110.93 | 1669 | 298 |
| Senorabampo | city | Sonora | Mexico | 27.99 | -110.45 | 830 | 1280 |
| Sepobampo | city | Sonora | Mexico | 26.76 | -109.74 | 9 | 5600 |
| Serebampo | city | Sonora | Mexico | 26.64 | -109.24 | 157 | 4917 |
| Seri | city | Sonora | Mexico | 30.00 | -111.25 | 2509 | 11 |
| Seri | city | Sonora | Mexico | 29.11 | -110.86 | 830 | 74595 |
| Seris | city | Sonora | Mexico | 29.11 | -110.86 | 830 | 74595 |
| Serna | city | Sonora | Mexico | 30.13 | -112.17 | 1669 | 0 |
| Serna | city | Sonora | Mexico | 26.86 | -109.64 | 32 | 20171 |
| Serventi | city | Sonora | Mexico | 31.85 | -112.78 | 1669 | 3621 |
| Setadehuachi | city | Sonora | Mexico | 30.50 | -110.01 | 3349 | 149 |
| Setadehuachi | city | Sonora | Mexico | 30.51 | -110.01 | 3349 | 149 |
| Setajaqui | city | Sonora | Mexico | 27.52 | -108.86 | 921 | 273 |
| Setajoa | city | Sonora | Mexico | 27.43 | -108.87 | 830 | 298 |
| Sevedo | city | Sonora | Mexico | 30.73 | -111.72 | 1669 | 31 |
| Severiano | city | Sonora | Mexico | 28.93 | -108.95 | 5869 | 261 |