| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Sabblan | city | Province of Isabela | Philippines | 17.1144444 | 121.98 | 305 | 23794 |
| Sagal | city | Province of Isabela | Philippines | 16.6627778 | 121.4719444 | 318 | 29600 |
| Salat | city | Province of Isabela | Philippines | 16.4166667 | 121.7333333 | 387 | 7519 |
| Salay | city | Province of Isabela | Philippines | 16.4238889 | 121.7530556 | 419 | 5547 |
| Salay | city | Province of Isabela | Philippines | 16.7683333 | 121.7661111 | 144 | 36076 |
| Salay | city | Province of Isabela | Philippines | 16.4361111 | 121.7769444 | 636 | 5547 |
| Salindingan | city | Province of Isabela | Philippines | 17.15 | 121.8833333 | 206 | 24197 |
| Salinongan | city | Province of Isabela | Philippines | 16.8677778 | 121.6161111 | 242 | 51452 |
| Salinungan | city | Province of Isabela | Philippines | 16.8677778 | 121.6161111 | 242 | 51452 |
| San Agustin | city | Province of Isabela | Philippines | 16.5138889 | 121.7497222 | 305 | 11281 |
| San Andres | city | Province of Isabela | Philippines | 16.9625 | 121.5925 | 242 | 34326 |
| San Antonio | city | Province of Isabela | Philippines | 16.8833333 | 121.55 | 262 | 19095 |
| San Antonio | city | Province of Isabela | Philippines | 17.0630556 | 121.5908333 | 275 | 45334 |
| San Antonio | city | Province of Isabela | Philippines | 16.6344444 | 121.6427778 | 259 | 24940 |
| San Antonio | city | Province of Isabela | Philippines | 16.7213889 | 121.6997222 | 180 | 33713 |
| San Antonio | city | Province of Isabela | Philippines | 17.4666667 | 121.75 | 200 | 22556 |
| San Antonio | city | Province of Isabela | Philippines | 17.2752778 | 121.7930556 | 98 | 23743 |
| San Antonio | city | Province of Isabela | Philippines | 17.0322222 | 121.9630556 | 285 | 20765 |
| San Antonio | city | Province of Isabela | Philippines | 17.0913889 | 121.9641667 | 193 | 23794 |
| San Antonio Minit | city | Province of Isabela | Philippines | 16.6344444 | 121.6427778 | 259 | 24940 |
| San Bernardino | city | Province of Isabela | Philippines | 17.4022222 | 121.7541667 | 180 | 26140 |
| San Bernardo | city | Province of Isabela | Philippines | 17.4022222 | 121.7541667 | 180 | 26140 |
| San Domingo | city | Province of Isabela | Philippines | 16.8458333 | 121.6552778 | 200 | 59577 |
| San Felipe | city | Province of Isabela | Philippines | 17.1277778 | 121.8772222 | 180 | 24197 |
| San Francisco | city | Province of Isabela | Philippines | 16.75 | 121.75 | 141 | 27830 |
| San Francisco | city | Province of Isabela | Philippines | 16.8852778 | 121.7588889 | 164 | 39322 |
| San Francisco | city | Province of Isabela | Philippines | 17.3527778 | 121.7844444 | 154 | 29422 |
| San Francisco | city | Province of Isabela | Philippines | 17.2833333 | 121.8 | 104 | 23743 |
| San Guillermo | city | Province of Isabela | Philippines | 16.7666667 | 121.8 | 193 | 26760 |
| San Isidro | city | Province of Isabela | Philippines | 16.7333333 | 121.6166667 | 226 | 57794 |
| San Isidro | city | Province of Isabela | Philippines | 16.8713889 | 121.7691667 | 164 | 39775 |
| San Isidro | city | Province of Isabela | Philippines | 17.2633333 | 121.7697222 | 190 | 21085 |
| San Isidro | city | Province of Isabela | Philippines | 17.2980556 | 121.7811111 | 108 | 26985 |
| San Isidro | city | Province of Isabela | Philippines | 17.5002778 | 121.7836111 | 269 | 35173 |
| San Jose | city | Province of Isabela | Philippines | 17.15 | 121.6 | 239 | 36036 |
| San Jose | city | Province of Isabela | Philippines | 16.75 | 121.75 | 141 | 27830 |
| San Jose | city | Province of Isabela | Philippines | 17.25 | 121.8 | 187 | 22964 |
| San Jose Este | city | Province of Isabela | Philippines | 17.1863889 | 121.6133333 | 167 | 25593 |
| San Jose Norte | city | Province of Isabela | Philippines | 17.2072222 | 121.5861111 | 265 | 25593 |
| San Jose Sur | city | Province of Isabela | Philippines | 17.195 | 121.5891667 | 249 | 25593 |
| San Juan | city | Province of Isabela | Philippines | 16.7219444 | 121.4833333 | 311 | 46178 |
| San Juan | city | Province of Isabela | Philippines | 16.8569444 | 121.6836111 | 193 | 52987 |
| San Juan | city | Province of Isabela | Philippines | 16.6402778 | 121.6919444 | 318 | 17308 |
| San Juan | city | Province of Isabela | Philippines | 17.3455556 | 121.6955556 | 226 | 25220 |
| San Juan | city | Province of Isabela | Philippines | 17.1355556 | 121.7097222 | 147 | 28888 |
| San Juan | city | Province of Isabela | Philippines | 17.4277778 | 121.7194444 | 167 | 25202 |
| San Juan | city | Province of Isabela | Philippines | 17.4127778 | 121.7411111 | 164 | 29614 |
| San Juan | city | Province of Isabela | Philippines | 17.3063889 | 121.78 | 127 | 26985 |
| San Juan | city | Province of Isabela | Philippines | 17.2108333 | 121.8816667 | 246 | 26210 |
| San Luis | city | Province of Isabela | Philippines | 16.65 | 121.4 | 902 | 26306 |
| San Luis | city | Province of Isabela | Philippines | 17.0316667 | 121.7358333 | 164 | 36525 |
| San Luis | city | Province of Isabela | Philippines | 16.9675 | 121.8311111 | 121 | 46351 |
| San Manuel | city | Province of Isabela | Philippines | 17.0225 | 121.6352778 | 232 | 44050 |
| San Mariana | city | Province of Isabela | Philippines | 16.9833333 | 122.0161111 | 298 | 11761 |
| San Mariano | city | Province of Isabela | Philippines | 16.9833333 | 122.0161111 | 298 | 11761 |
| San Mariano | city | Province of Isabela | Philippines | 16.99 | 122.0433333 | 324 | 7189 |
| San Mateo | city | Province of Isabela | Philippines | 16.8830556 | 121.5877778 | 249 | 41656 |
| San Mateo | city | Province of Isabela | Philippines | 17.1397222 | 121.7497222 | 150 | 28888 |
| San Pablo | city | Province of Isabela | Philippines | 17.4697222 | 121.7877778 | 229 | 22556 |
| San Pablo | city | Province of Isabela | Philippines | 17.4675 | 121.7972222 | 265 | 22234 |
| San Pablo | city | Province of Isabela | Philippines | 17.2086111 | 121.8997222 | 318 | 26210 |
| San Pablo | city | Province of Isabela | Philippines | 16.9619444 | 121.9994444 | 298 | 21406 |
| San Pedro | city | Province of Isabela | Philippines | 17.2 | 121.8833333 | 232 | 24996 |
| San Rafael | city | Province of Isabela | Philippines | 17.4666667 | 121.75 | 200 | 22556 |
| San Rafael | city | Province of Isabela | Philippines | 17.4333333 | 121.7666667 | 141 | 21259 |
| San Rafael | city | Province of Isabela | Philippines | 17.0805556 | 121.9705556 | 173 | 21756 |
| San Roque | city | Province of Isabela | Philippines | 17.0422222 | 121.7602778 | 157 | 33053 |
| San Roque | city | Province of Isabela | Philippines | 17.1666667 | 121.9833333 | 656 | 23497 |
| San Vicente | city | Province of Isabela | Philippines | 17.4 | 121.7833333 | 160 | 26140 |
| Sancad | city | Province of Isabela | Philippines | 17.1 | 122.3166667 | 1036 | 1317 |
| Sandiat | city | Province of Isabela | Philippines | 17.0722222 | 121.6652778 | 200 | 47572 |
| Sandiat Weste | city | Province of Isabela | Philippines | 17.0741667 | 121.6419444 | 209 | 47572 |
| Santa | city | Province of Isabela | Philippines | 17.3458333 | 121.8286111 | 311 | 24866 |
| Santa Isabel | city | Province of Isabela | Philippines | 17.1933333 | 121.8175 | 157 | 23488 |
| Santa Isabela | city | Province of Isabela | Philippines | 17.1933333 | 121.8175 | 157 | 23488 |
| Santa Lucia | city | Province of Isabela | Philippines | 17.1344444 | 121.7338889 | 147 | 28888 |
| Santa Maria | city | Province of Isabela | Philippines | 16.7644444 | 121.6958333 | 180 | 44123 |
| Santa Maria | city | Province of Isabela | Philippines | 17.4663889 | 121.7522222 | 200 | 22556 |
| Santa Monica | city | Province of Isabela | Philippines | 16.6808333 | 121.6227778 | 223 | 47285 |
| Santiago | city | Province of Isabela | Philippines | 16.6927778 | 121.5486111 | 255 | 49937 |
| Santo Domingo | city | Province of Isabela | Philippines | 16.7144444 | 121.6988889 | 203 | 33713 |
| Santo Domingo | city | Province of Isabela | Philippines | 17.1575 | 121.7533333 | 150 | 26082 |
| Santo Filomena | city | Province of Isabela | Philippines | 16.9808333 | 121.9708333 | 318 | 21406 |
| Santo Nino | city | Province of Isabela | Philippines | 16.4697222 | 121.7841667 | 538 | 7039 |
| Santo Niño | city | Province of Isabela | Philippines | 16.4697222 | 121.7841667 | 538 | 7039 |
| Santo Tomas | city | Province of Isabela | Philippines | 16.7894444 | 121.6463889 | 203 | 53445 |
| Santo Tomas | city | Province of Isabela | Philippines | 17.3991667 | 121.765 | 164 | 26140 |
| Santor | city | Province of Isabela | Philippines | 16.9933333 | 121.7286111 | 137 | 42458 |
| Santor | city | Province of Isabela | Philippines | 16.9833333 | 121.7333333 | 164 | 42458 |
| Santor-Tungui | city | Province of Isabela | Philippines | 16.9833333 | 121.8333333 | 118 | 46351 |
| Sarung | city | Province of Isabela | Philippines | 16.8058333 | 121.8005556 | 164 | 30557 |
| Saui | city | Province of Isabela | Philippines | 17.4333333 | 121.7666667 | 141 | 21259 |
| Sibbu | city | Province of Isabela | Philippines | 17.1366667 | 121.7966667 | 164 | 25240 |
| Siempre Viva | city | Province of Isabela | Philippines | 17.2305556 | 121.6366667 | 223 | 17945 |
| Siffu | city | Province of Isabela | Philippines | 17.1366667 | 121.7966667 | 164 | 25240 |
| Siggud | city | Province of Isabela | Philippines | 17.4925 | 121.8813889 | 318 | 10800 |
| Siggug | city | Province of Isabela | Philippines | 17.4925 | 121.8813889 | 318 | 10800 |
| Silauan | city | Province of Isabela | Philippines | 16.7138889 | 121.6825 | 203 | 33713 |
| Silawit | city | Province of Isabela | Philippines | 16.8788889 | 121.7563889 | 167 | 39322 |
| Sili | city | Province of Isabela | Philippines | 16.9833333 | 121.6166667 | 219 | 34326 |
| Simanu | city | Province of Isabela | Philippines | 17.4933333 | 121.8419444 | 259 | 16966 |
| Simanu Norte | city | Province of Isabela | Philippines | 17.4933333 | 121.8419444 | 259 | 16966 |
| Simanu Sur | city | Province of Isabela | Philippines | 17.4816667 | 121.8644444 | 311 | 16966 |
| Simimbaan | city | Province of Isabela | Philippines | 17.1183333 | 121.5833333 | 282 | 27489 |
| Simpa | city | Province of Isabela | Philippines | 17.0166667 | 121.9 | 298 | 35645 |
| Sinabbaran | city | Province of Isabela | Philippines | 16.7269444 | 121.7044444 | 183 | 33713 |
| Sinalugan | city | Province of Isabela | Philippines | 16.8088889 | 121.8033333 | 164 | 30557 |
| Sinaman Sur | city | Province of Isabela | Philippines | 16.8377778 | 121.5366667 | 272 | 12694 |
| Sinamar | city | Province of Isabela | Philippines | 16.9 | 121.5666667 | 259 | 19095 |
| Sinamar Norte | city | Province of Isabela | Philippines | 16.845 | 121.5497222 | 262 | 32359 |
| Sinaoangan Norte | city | Province of Isabela | Philippines | 16.4552778 | 121.7505556 | 387 | 5547 |
| Sinaoangan Sur | city | Province of Isabela | Philippines | 16.4366667 | 121.7536111 | 393 | 5547 |
| Sinaoañgan Norte | city | Province of Isabela | Philippines | 16.4552778 | 121.7505556 | 387 | 5547 |
| Sinaoañgan Sur | city | Province of Isabela | Philippines | 16.4366667 | 121.7536111 | 393 | 5547 |
| Sinaongan Norte | city | Province of Isabela | Philippines | 16.4552778 | 121.7505556 | 387 | 5547 |
| Sinaoñgan Norte | city | Province of Isabela | Philippines | 16.4552778 | 121.7505556 | 387 | 5547 |
| Sinappil | city | Province of Isabela | Philippines | 16.6405556 | 121.5119444 | 311 | 33157 |
| Sinauangan | city | Province of Isabela | Philippines | 16.4552778 | 121.7505556 | 387 | 5547 |
| Sindon | city | Province of Isabela | Philippines | 17.0638889 | 122.0205556 | 383 | 19977 |
| Sindun Lupigi | city | Province of Isabela | Philippines | 17.0913889 | 121.9855556 | 291 | 23794 |
| Sinili | city | Province of Isabela | Philippines | 16.6333333 | 121.5608333 | 259 | 36939 |
| Sinipil | city | Province of Isabela | Philippines | 17.3277778 | 121.7958333 | 141 | 25413 |
| Sinippil | city | Province of Isabela | Philippines | 17.3277778 | 121.7958333 | 141 | 25413 |
| Sinippit | city | Province of Isabela | Philippines | 16.6405556 | 121.5119444 | 311 | 33157 |
| Sinsayon | city | Province of Isabela | Philippines | 16.6944444 | 121.5261111 | 259 | 43805 |
| Sipay | city | Province of Isabela | Philippines | 17.1333333 | 121.8833333 | 226 | 24197 |
| Sisim | city | Province of Isabela | Philippines | 17.2775 | 121.8547222 | 314 | 26304 |
| Soyon | city | Province of Isabela | Philippines | 16.6997222 | 121.6666667 | 216 | 23666 |
| Soyung | city | Province of Isabela | Philippines | 16.6997222 | 121.6666667 | 216 | 23666 |
| Sucal | city | Province of Isabela | Philippines | 17.0169444 | 121.9022222 | 298 | 35645 |
| Sucat | city | Province of Isabela | Philippines | 17.0169444 | 121.9022222 | 298 | 35645 |
| Surcoc | city | Province of Isabela | Philippines | 17.0244444 | 121.9019444 | 328 | 35645 |
| Surcug | city | Province of Isabela | Philippines | 17.0244444 | 121.9019444 | 328 | 35645 |
| Surcug | city | Province of Isabela | Philippines | 17.088889 | 121.9163889 | 301 | 25414 |
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