| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Salamar | city | Usulutan | El Salvador | 13.27 | -88.35 | 160 | 16940 |
| Salamo | city | Usulutan | El Salvador | 13.25 | -88.22 | 1187 | 11053 |
| Salinas El Potrero | city | Usulutan | El Salvador | 13.30 | -88.67 | 9 | 9737 |
| Salinas El Sisihuayo | city | Usulutan | El Salvador | 13.28 | -88.68 | 13 | 8593 |
| Salinas El Zamorancito | city | Usulutan | El Salvador | 13.33 | -88.70 | 32 | 10398 |
| Salinas El Zamorán | city | Usulutan | El Salvador | 13.33 | -88.70 | 32 | 10398 |
| Salinas de Sisiguayo | city | Usulutan | El Salvador | 13.28 | -88.68 | 13 | 8593 |
| Samoran | city | Usulutan | El Salvador | 13.33 | -88.70 | 32 | 10398 |
| Samuria | city | Usulutan | El Salvador | 13.23 | -88.28 | 997 | 9294 |
| San Agustin | city | Usulutan | El Salvador | 13.43 | -88.60 | 869 | 10540 |
| San Antonio | city | Usulutan | El Salvador | 13.27 | -88.33 | 308 | 13210 |
| San Antonio | city | Usulutan | El Salvador | 13.63 | -88.42 | 830 | 14854 |
| San Antonio | city | Usulutan | El Salvador | 13.33 | -88.37 | 187 | 46970 |
| San Antonio | city | Usulutan | El Salvador | 13.63 | -88.40 | 830 | 15758 |
| San Antonio | city | Usulutan | El Salvador | 13.43 | -88.60 | 869 | 10540 |
| San Antonio Potrerillos | city | Usulutan | El Salvador | 13.28 | -88.77 | 22 | 9743 |
| San Bartolo | city | Usulutan | El Salvador | 13.30 | -88.57 | 101 | 20411 |
| San Benito | city | Usulutan | El Salvador | 13.60 | -88.57 | 239 | 17659 |
| San Buena | city | Usulutan | El Salvador | 13.53 | -88.38 | 1669 | 29925 |
| San Buenaventura | city | Usulutan | El Salvador | 13.53 | -88.38 | 1669 | 29925 |
| San Cristóbal | city | Usulutan | El Salvador | 13.26 | -88.22 | 908 | 11053 |
| San Dionisio | city | Usulutan | El Salvador | 13.28 | -88.47 | 114 | 39157 |
| San Felipe | city | Usulutan | El Salvador | 13.27 | -88.35 | 160 | 16940 |
| San Felipe | city | Usulutan | El Salvador | 13.27 | -88.33 | 308 | 13210 |
| San Felipe | city | Usulutan | El Salvador | 13.52 | -88.58 | 1669 | 17246 |
| San Francisco | city | Usulutan | El Salvador | 13.37 | -88.42 | 374 | 51160 |
| San Francisco | city | Usulutan | El Salvador | 13.28 | -88.48 | 82 | 37794 |
| San Francisco | city | Usulutan | El Salvador | 13.52 | -88.55 | 2650 | 20445 |
| San Francisco Javier | city | Usulutan | El Salvador | 13.42 | -88.57 | 944 | 14282 |
| San Ildefonso | city | Usulutan | El Salvador | 13.32 | -88.35 | 150 | 34651 |
| San Isidro | city | Usulutan | El Salvador | 13.53 | -88.60 | 879 | 17163 |
| San Jose | city | Usulutan | El Salvador | 13.27 | -88.33 | 308 | 13210 |
| San Jose Montanita | city | Usulutan | El Salvador | 13.53 | -88.50 | 2050 | 28675 |
| San Jose de La Poza | city | Usulutan | El Salvador | 13.35 | -88.50 | 374 | 40337 |
| San José | city | Usulutan | El Salvador | 13.60 | -88.47 | 1105 | 17904 |
| San Juan | city | Usulutan | El Salvador | 13.63 | -88.52 | 830 | 15085 |
| San Juan | city | Usulutan | El Salvador | 13.37 | -88.62 | 223 | 10660 |
| San Juan | city | Usulutan | El Salvador | 13.48 | -88.48 | 3349 | 29957 |
| San Juan Letran | city | Usulutan | El Salvador | 13.45 | -88.68 | 160 | 11139 |
| San Juan Loma Alta | city | Usulutan | El Salvador | 13.55 | -88.55 | 1669 | 21262 |
| San Juan de Letrán | city | Usulutan | El Salvador | 13.45 | -88.68 | 160 | 11139 |
| San Juan del Gozo | city | Usulutan | El Salvador | 13.27 | -88.73 | 16 | 9291 |
| San Juan del Gozo | city | Usulutan | El Salvador | 13.27 | -88.75 | 26 | 8918 |
| San Juan del Letran | city | Usulutan | El Salvador | 13.45 | -88.68 | 160 | 11139 |
| San Judas | city | Usulutan | El Salvador | 13.37 | -88.67 | 111 | 10091 |
| San Lorenzo | city | Usulutan | El Salvador | 13.48 | -88.55 | 3517 | 17665 |
| San Marcos | city | Usulutan | El Salvador | 13.43 | -88.70 | 108 | 10200 |
| San Marcos Lempa | city | Usulutan | El Salvador | 13.43 | -88.70 | 108 | 10200 |
| San Pedro | city | Usulutan | El Salvador | 13.42 | -88.67 | 209 | 9634 |
| San Pedro | city | Usulutan | El Salvador | 13.62 | -88.48 | 892 | 16632 |
| Santa Anita | city | Usulutan | El Salvador | 13.57 | -88.52 | 980 | 22380 |
| Santa Bárbara | city | Usulutan | El Salvador | 13.32 | -88.45 | 147 | 57774 |
| Santa Clara | city | Usulutan | El Salvador | 13.38 | -88.38 | 830 | 52755 |
| Santa Cruz | city | Usulutan | El Salvador | 13.60 | -88.48 | 1095 | 18218 |
| Santa Cruz | city | Usulutan | El Salvador | 13.52 | -88.58 | 1669 | 17246 |
| Santa Cruz | city | Usulutan | El Salvador | 13.53 | -88.40 | 1669 | 28800 |
| Santa Elena | city | Usulutan | El Salvador | 13.38 | -88.42 | 830 | 47728 |
| Santa Lucia | city | Usulutan | El Salvador | 13.28 | -88.55 | 65 | 26696 |
| Santa Lucía | city | Usulutan | El Salvador | 13.24 | -88.24 | 1669 | 9562 |
| Santa Maria | city | Usulutan | El Salvador | 13.35 | -88.43 | 308 | 56795 |
| Santiago | city | Usulutan | El Salvador | 13.48 | -88.47 | 3349 | 30785 |
| Santiago de Maria | city | Usulutan | El Salvador | 13.48 | -88.47 | 3349 | 30785 |
| Sitio San Antonio | city | Usulutan | El Salvador | 13.65 | -88.48 | 830 | 13328 |
| Sitio San Jose | city | Usulutan | El Salvador | 13.23 | -88.32 | 177 | 12916 |
| Sitio de San Antonio | city | Usulutan | El Salvador | 13.65 | -88.48 | 830 | 13328 |
| Sitio de Santa Lucía | city | Usulutan | El Salvador | 13.28 | -88.55 | 65 | 26696 |