| Town Name | Type | Region | Province / State | County | Municipality | Population | Latitude | Longitude | |
|---|---|---|---|---|---|---|---|---|---|
| Sagunt | town | 19161 | 39.679173 | -0.277415 | Map | ||||
| Sahagún | village | 2380 | 42.371902 | -5.031314 | Map | ||||
| Salamanca | city | 155921 | 40.965157 | -5.664018 | Map | ||||
| Salar | village | 2831 | 37.149780 | -4.068536 | Map | ||||
| Salas | town | 1597 | 43.408211 | -6.256857 | Map | ||||
| Salas de los Infantes | village | 2086 | 42.021942 | -3.287984 | Map | ||||
| Saldaña | village | 2589 | 42.522713 | -4.736439 | Map | ||||
| Salinas | village | 1549 | 38.519756 | -0.913229 | Map | ||||
| Sallent | town | 6425 | 41.825909 | 1.894876 | Map | ||||
| Salobreña | town | 9466 | 36.736626 | -3.588306 | Map | ||||
| Salou | town | Tarragona | 27016 | 41.076820 | 1.144041 | Map | |||
| Salt | town | 30304 | 41.974167 | 2.794989 | Map | ||||
| Salteras | village | 5160 | 37.418877 | -6.110913 | Map | ||||
| Salvaleón | village | 2039 | 38.508255 | -6.786277 | Map | ||||
| Salvaleón | village | 2039 | 38.510296 | -6.786706 | Map | ||||
| Salvatierra de los Barros | village | 1772 | 38.490673 | -6.684407 | Map | ||||
| Samartín del Rei Aurelio/San Martín del Rey Aurelio | town | Principado de Asturi | Asturias | 18549 | 43.275429 | -5.604662 | Map | ||
| San Adrián | village | 6293 | 42.332806 | -1.933669 | Map | ||||
| San Agustín del Guadalix | town | Comunidad de Madrid | Madrid | 11322 | 40.679050 | -3.616600 | Map | ||
| San Andrés del Rabanedo | village | 4405 | 42.611233 | -5.616866 | Map | ||||
| San Antonio de Benagéber | village | 6246 | 39.561947 | -0.500127 | Map | ||||
| San Asensio | village | 1239 | 42.498016 | -2.749857 | Map | ||||
| San Bartolomé de la Torre | village | Andalucía | Huelva | 3530 | 37.446243 | -7.106781 | Map | ||
| San Carlos del Valle | village | 1201 | 38.844330 | -3.241678 | Map | ||||
| San Cibrao | town | 2101 | 43.693981 | -7.441637 | Map |