| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Sablot | city | Province of La Union | Philippines | 16.8166667 | 120.4 | 288 | 63298 |
| Sacyud | city | Province of La Union | Philippines | 16.5833333 | 120.3833333 | 278 | 78373 |
| Sagayad | city | Province of La Union | Philippines | 16.6 | 120.3333333 | 262 | 40566 |
| Sagayao | city | Province of La Union | Philippines | 16.6 | 120.3333333 | 262 | 40566 |
| Saitan | city | Province of La Union | Philippines | 16.2383333 | 120.5077778 | 511 | 38976 |
| Salincob | city | Province of La Union | Philippines | 16.7333333 | 120.3833333 | 246 | 48811 |
| Salincub | city | Province of La Union | Philippines | 16.7333333 | 120.3833333 | 246 | 48811 |
| San Agustin | city | Province of La Union | Philippines | 16.6166667 | 120.3 | 0 | 40566 |
| San Agustin | city | Province of La Union | Philippines | 16.5333333 | 120.35 | 265 | 65982 |
| San Agustin | city | Province of La Union | Philippines | 16.3333333 | 120.3666667 | 190 | 48574 |
| San Anastacio | city | Province of La Union | Philippines | 16.8833333 | 120.4833333 | 984 | 41783 |
| San Antonio | city | Province of La Union | Philippines | 16.3333333 | 120.3666667 | 190 | 48574 |
| San Antonio | city | Province of La Union | Philippines | 16.4011111 | 120.3963889 | 252 | 64489 |
| San Benito | city | Province of La Union | Philippines | 16.4136111 | 120.3561111 | 564 | 48741 |
| San Blas | city | Province of La Union | Philippines | 16.9 | 120.4166667 | 157 | 46993 |
| San Carlos | city | Province of La Union | Philippines | 16.4333333 | 120.3333333 | 121 | 20545 |
| San Cornelio | city | Province of La Union | Philippines | 16.45 | 120.35 | 305 | 45514 |
| San Cristobal | city | Province of La Union | Philippines | 16.8833333 | 120.4666667 | 265 | 41783 |
| San Eugenio | city | Province of La Union | Philippines | 16.3625 | 120.3569444 | 203 | 59686 |
| San Fabian | city | Province of La Union | Philippines | 16.1666667 | 120.5 | 249 | 62666 |
| San Felipe | city | Province of La Union | Philippines | 16.7 | 120.4 | 328 | 46753 |
| San Fermin | city | Province of La Union | Philippines | 16.4666667 | 120.3833333 | 301 | 68637 |
| San Fernando | city | Province of La Union | Philippines | 16.6186111 | 120.3194444 | 180 | 40566 |
| San Francisco | city | Province of La Union | Philippines | 16.6 | 120.3 | 98 | 40566 |
| San Francisco | city | Province of La Union | Philippines | 16.8333333 | 120.45 | 209 | 50876 |
| San Gabriel | city | Province of La Union | Philippines | 16.6755556 | 120.4030556 | 246 | 46753 |
| San Gregorio | city | Province of La Union | Philippines | 16.4333333 | 120.3666667 | 282 | 45514 |
| San Joaquin | city | Province of La Union | Philippines | 16.3166667 | 120.35 | 111 | 48574 |
| San Jose | city | Province of La Union | Philippines | 16.3016667 | 120.3797222 | 223 | 62993 |
| San Jose | city | Province of La Union | Philippines | 16.4286111 | 120.3880556 | 252 | 59833 |
| San Jose | city | Province of La Union | Philippines | 16.85 | 120.4666667 | 269 | 38282 |
| San José | city | Province of La Union | Philippines | 16.3016667 | 120.3797222 | 223 | 62993 |
| San Juan | city | Province of La Union | Philippines | 16.6686111 | 120.3413889 | 246 | 40826 |
| San Juan | city | Province of La Union | Philippines | 16.4166667 | 120.3833333 | 246 | 59833 |
| San Julian | city | Province of La Union | Philippines | 16.3152778 | 120.3716667 | 206 | 48574 |
| San Julian West | city | Province of La Union | Philippines | 16.3152778 | 120.3716667 | 206 | 48574 |
| San Luis | city | Province of La Union | Philippines | 16.2666667 | 120.4833333 | 479 | 29626 |
| San Martin | city | Province of La Union | Philippines | 16.7166667 | 120.35 | 154 | 36805 |
| San Nicolas | city | Province of La Union | Philippines | 16.3166667 | 120.35 | 111 | 48574 |
| San Pablo | city | Province of La Union | Philippines | 16.8166667 | 120.4 | 288 | 63298 |
| San Pascual | city | Province of La Union | Philippines | 16.3402778 | 120.4211111 | 252 | 59366 |
| San Pedro | city | Province of La Union | Philippines | 16.35 | 120.3666667 | 282 | 59686 |
| San Rafael | city | Province of La Union | Philippines | 16.9166667 | 120.4666667 | 85 | 35683 |
| San Simon | city | Province of La Union | Philippines | 16.4 | 120.3833333 | 219 | 64489 |
| San Vicente | city | Province of La Union | Philippines | 16.5833333 | 120.3 | 0 | 42222 |
| San Vicente | city | Province of La Union | Philippines | 16.3380556 | 120.3655556 | 232 | 59686 |
| Santa Ana | city | Province of La Union | Philippines | 16.3666667 | 120.35 | 150 | 59686 |
| Santa Ana | city | Province of La Union | Philippines | 16.35 | 120.3666667 | 282 | 59686 |
| Santa Barbara | city | Province of La Union | Philippines | 16.3166667 | 120.35 | 111 | 48574 |
| Santa Cecilia | city | Province of La Union | Philippines | 16.3833333 | 120.4 | 252 | 64489 |
| Santa Cruz | city | Province of La Union | Philippines | 16.7658333 | 120.3580556 | 265 | 43018 |
| Santa Isabel | city | Province of La Union | Philippines | 16.8 | 120.35 | 301 | 44794 |
| Santa Lucia | city | Province of La Union | Philippines | 16.4 | 120.3333333 | 98 | 18405 |
| Santa Monica | city | Province of La Union | Philippines | 16.4833333 | 120.3666667 | 410 | 56898 |
| Santa Rita | city | Province of La Union | Philippines | 16.3852778 | 120.3530556 | 170 | 48741 |
| Santa Rita | city | Province of La Union | Philippines | 16.3561111 | 120.3575 | 203 | 59686 |
| Santa Rita | city | Province of La Union | Philippines | 16.75 | 120.3808333 | 246 | 48811 |
| Santa Rosa | city | Province of La Union | Philippines | 16.6875 | 120.3597222 | 164 | 40826 |
| Santa Rosario | city | Province of La Union | Philippines | 16.7 | 120.35 | 49 | 40826 |
| Santa Teresa | city | Province of La Union | Philippines | 16.3805556 | 120.405 | 314 | 64489 |
| Santa Tereza | city | Province of La Union | Philippines | 16.3805556 | 120.405 | 314 | 64489 |
| Santa Tomas | city | Province of La Union | Philippines | 16.2788889 | 120.3888889 | 154 | 31519 |
| Santiago | city | Province of La Union | Philippines | 16.4833333 | 120.3333333 | 164 | 29394 |
| Santiago | city | Province of La Union | Philippines | 16.6166667 | 120.3333333 | 285 | 40566 |
| Santiago | city | Province of La Union | Philippines | 16.4347222 | 120.3375 | 160 | 45514 |
| Santiago Norte | city | Province of La Union | Philippines | 16.6166667 | 120.3333333 | 285 | 40566 |
| Santiago Sur | city | Province of La Union | Philippines | 16.6 | 120.3166667 | 144 | 40566 |
| Santo Cristo | city | Province of La Union | Philippines | 16.3666667 | 120.35 | 150 | 59686 |
| Santo Domingo | city | Province of La Union | Philippines | 16.8661111 | 120.3869444 | 154 | 54837 |
| Santo Domingo Norte | city | Province of La Union | Philippines | 16.8661111 | 120.3869444 | 154 | 54837 |
| Santo Domingo Sur | city | Province of La Union | Philippines | 16.85 | 120.3833333 | 213 | 54837 |
| Santo Rosario | city | Province of La Union | Philippines | 16.7 | 120.35 | 49 | 40826 |
| Santo Rosario | city | Province of La Union | Philippines | 16.3833333 | 120.35 | 170 | 48741 |
| Santo Rosario Oeste | city | Province of La Union | Philippines | 16.3833333 | 120.35 | 170 | 48741 |
| Santo Thomas | city | Province of La Union | Philippines | 16.2788889 | 120.3888889 | 154 | 31519 |
| Santo Tomas | city | Province of La Union | Philippines | 16.3333333 | 120.3333333 | 0 | 18448 |
| Santo Tomas | city | Province of La Union | Philippines | 16.2788889 | 120.3888889 | 154 | 31519 |
| Santol | city | Province of La Union | Philippines | 16.7711111 | 120.4594444 | 269 | 29997 |
| Saoay | city | Province of La Union | Philippines | 16.6166667 | 120.3166667 | 180 | 40566 |
| Sapilang | city | Province of La Union | Philippines | 16.7333333 | 120.3833333 | 246 | 48811 |
| Sapilang | city | Province of La Union | Philippines | 16.4833333 | 120.4166667 | 288 | 60574 |
| Saracat | city | Province of La Union | Philippines | 16.6333333 | 120.3833333 | 892 | 55640 |
| Sasaba | city | Province of La Union | Philippines | 16.7333333 | 120.5166667 | 1122 | 15824 |
| Sauay | city | Province of La Union | Philippines | 16.6333333 | 120.35 | 328 | 53792 |
| Say-oan | city | Province of La Union | Philippines | 16.7333333 | 120.3833333 | 246 | 48811 |
| Saytan | city | Province of La Union | Philippines | 16.2383333 | 120.5077778 | 511 | 38976 |
| Searborough Shoal | city | Province of La Union | Philippines | 15.1666667 | 117.5 | 0 | 0 |
| Seng-ngat | city | Province of La Union | Philippines | 16.8833333 | 120.4666667 | 265 | 41783 |
| Seng-ñgat | city | Province of La Union | Philippines | 16.8833333 | 120.4666667 | 265 | 41783 |
| Sevilla | city | Province of La Union | Philippines | 16.5833333 | 120.3286111 | 154 | 42222 |
| Sevilla | city | Province of La Union | Philippines | 16.5833333 | 120.3333333 | 252 | 42222 |
| Sevilla Centro | city | Province of La Union | Philippines | 16.5833333 | 120.3286111 | 154 | 42222 |
| Sevilla Sur | city | Province of La Union | Philippines | 16.5833333 | 120.3333333 | 252 | 42222 |
| Siboan-otong | city | Province of La Union | Philippines | 16.6166667 | 120.3166667 | 180 | 40566 |
| Sili | city | Province of La Union | Philippines | 16.5333333 | 120.3833333 | 246 | 75759 |
| Sinapangan | city | Province of La Union | Philippines | 16.6666667 | 120.3333333 | 242 | 19660 |
| Sinapangan | city | Province of La Union | Philippines | 16.8666667 | 120.45 | 328 | 55373 |
| Sinapangan Norte | city | Province of La Union | Philippines | 16.85 | 120.4333333 | 246 | 55373 |
| Sinapangan Sur | city | Province of La Union | Philippines | 16.8333333 | 120.4333333 | 246 | 50876 |
| Sipulo | city | Province of La Union | Philippines | 16.7166667 | 120.35 | 154 | 36805 |
| Sobredillo | city | Province of La Union | Philippines | 16.4 | 120.4333333 | 984 | 54425 |
| Subusob | city | Province of La Union | Philippines | 16.2166667 | 120.5 | 492 | 38976 |
| Subusub | city | Province of La Union | Philippines | 16.2166667 | 120.5 | 492 | 38976 |
| Sucoc | city | Province of La Union | Philippines | 16.8333333 | 120.3666667 | 200 | 44794 |
| Sucoc | city | Province of La Union | Philippines | 16.8333333 | 120.3666667 | 200 | 44794 |
| Sucoc Norte | city | Province of La Union | Philippines | 16.8333333 | 120.3666667 | 200 | 44794 |
| Sucoc Sur | city | Province of La Union | Philippines | 16.8333333 | 120.3666667 | 200 | 44794 |
| Sudipen | city | Province of La Union | Philippines | 16.9 | 120.4525 | 236 | 46993 |
| Sugidan Norte | city | Province of La Union | Philippines | 16.5166667 | 120.3833333 | 262 | 75759 |
| Sugidan Sur | city | Province of La Union | Philippines | 16.5 | 120.3833333 | 295 | 68637 |
| Suguidan Norte | city | Province of La Union | Philippines | 16.5166667 | 120.3833333 | 262 | 75759 |
| Suguidan Sur | city | Province of La Union | Philippines | 16.5 | 120.3833333 | 295 | 68637 |
| Sundugan Point | city | Province of La Union | Philippines | 9.1666667 | 123.5 | 259 | 26748 |
| Suyo | city | Province of La Union | Philippines | 16.85 | 120.3833333 | 213 | 54837 |
| Suyo | city | Province of La Union | Philippines | 16.6 | 120.4666667 | 984 | 34829 |
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