| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
|---|
| Sacritan | city | Province of Ilocos Norte | Philippines | 17.9166667 | 120.5833333 | 278 | 27751 |
| Sagneb | city | Province of Ilocos Norte | Philippines | 18.2 | 120.5666667 | 29 | 81961 |
| Sagpatan | city | Province of Ilocos Norte | Philippines | 18.1166667 | 120.7166667 | 131 | 31293 |
| Salad | city | Province of Ilocos Norte | Philippines | 18.3833333 | 120.7 | 987 | 12842 |
| Salindeg | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.4833333 | 16 | 16952 |
| Salindig | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.4833333 | 16 | 16952 |
| Salnap | city | Province of Ilocos Norte | Philippines | 17.95 | 120.5333333 | 137 | 31568 |
| Salpad | city | Province of Ilocos Norte | Philippines | 18.25 | 120.65 | 144 | 48322 |
| Salsalamagui | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6666667 | 291 | 20705 |
| Samac | city | Province of Ilocos Norte | Philippines | 18.15 | 120.5666667 | 127 | 78852 |
| San Agustin | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.5166667 | 39 | 37721 |
| San Alberto | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6333333 | 85 | 48322 |
| San Ambrocio | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6 | 45 | 70006 |
| San Andres | city | Province of Ilocos Norte | Philippines | 18.1666667 | 120.65 | 124 | 54424 |
| San Antonio | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.5833333 | 26 | 33263 |
| San Antonio | city | Province of Ilocos Norte | Philippines | 18.1666667 | 120.6166667 | 45 | 84979 |
| San Antonio | city | Province of Ilocos Norte | Philippines | 18.1333333 | 120.6333333 | 22 | 56670 |
| San Benigno | city | Province of Ilocos Norte | Philippines | 18.2833333 | 120.5833333 | 29 | 33263 |
| San Bernabe | city | Province of Ilocos Norte | Philippines | 18.1 | 120.6333333 | 236 | 47642 |
| San Blas | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.5166667 | 39 | 37721 |
| San Ciriaco | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.5833333 | 26 | 33263 |
| San Cristobal | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Esteban | city | Province of Ilocos Norte | Philippines | 18.1333333 | 120.7166667 | 131 | 22723 |
| San Felipe | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Francisco | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6 | 45 | 70006 |
| San Francisco | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Gregorio | city | Province of Ilocos Norte | Philippines | 17.9833333 | 120.6833333 | 219 | 27042 |
| San Isidro | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Jose | city | Province of Ilocos Norte | Philippines | 18.15 | 120.65 | 85 | 56670 |
| San Jose | city | Province of Ilocos Norte | Philippines | 17.9833333 | 120.7138889 | 301 | 21591 |
| San Jose | city | Province of Ilocos Norte | Philippines | 18.0272222 | 120.7588889 | 416 | 23444 |
| San Juan | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Juan | city | Province of Ilocos Norte | Philippines | 17.9666667 | 120.65 | 219 | 33357 |
| San Juan | city | Province of Ilocos Norte | Philippines | 18.1 | 120.7333333 | 144 | 31293 |
| San Julian | city | Province of Ilocos Norte | Philippines | 18.1333333 | 120.7833333 | 249 | 17971 |
| San Lorenzo | city | Province of Ilocos Norte | Philippines | 18.1333333 | 120.6333333 | 22 | 56670 |
| San Manuel | city | Province of Ilocos Norte | Philippines | 18.2833333 | 120.5833333 | 29 | 33263 |
| San Manuel | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Marcos | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6666667 | 13 | 33685 |
| San Mateo | city | Province of Ilocos Norte | Philippines | 18.05 | 120.6 | 147 | 56212 |
| San Mateo | city | Province of Ilocos Norte | Philippines | 18.1763889 | 120.6305556 | 72 | 54424 |
| San Megro | city | Province of Ilocos Norte | Philippines | 17.9825 | 120.7236111 | 328 | 21591 |
| San Miguel | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6 | 45 | 70006 |
| San Moises | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Nicolas | city | Province of Ilocos Norte | Philippines | 18.1725 | 120.5958333 | 91 | 84979 |
| San Nicolas | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| San Pablo | city | Province of Ilocos Norte | Philippines | 18.1333333 | 120.5833333 | 141 | 78852 |
| San Pedro | city | Province of Ilocos Norte | Philippines | 18.05 | 120.6 | 147 | 56212 |
| San Pedro | city | Province of Ilocos Norte | Philippines | 18.0833333 | 120.6333333 | 328 | 45070 |
| San Pedro | city | Province of Ilocos Norte | Philippines | 18.3666667 | 120.6333333 | 364 | 15701 |
| San Pedro | city | Province of Ilocos Norte | Philippines | 17.9833333 | 120.7166667 | 301 | 21591 |
| San Rafael | city | Province of Ilocos Norte | Philippines | 18.3 | 120.65 | 150 | 22887 |
| San Rafaelo | city | Province of Ilocos Norte | Philippines | 18.3 | 120.65 | 150 | 22887 |
| San Roque | city | Province of Ilocos Norte | Philippines | 18.3333333 | 120.6 | 52 | 22575 |
| San Roque | city | Province of Ilocos Norte | Philippines | 18.1666667 | 120.6333333 | 19 | 54424 |
| Sangil | city | Province of Ilocos Norte | Philippines | 18.25 | 120.5833333 | 95 | 59926 |
| Santa Ana | city | Province of Ilocos Norte | Philippines | 18.0655556 | 120.7941667 | 272 | 17434 |
| Santa Catalina | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.5833333 | 26 | 33263 |
| Santa Catalina | city | Province of Ilocos Norte | Philippines | 18.3555556 | 120.67 | 761 | 12997 |
| Santa Cruz | city | Province of Ilocos Norte | Philippines | 18.0166667 | 120.4833333 | 3 | 14255 |
| Santa Magdalena | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| Santa Maria | city | Province of Ilocos Norte | Philippines | 18.2141667 | 120.5688889 | 55 | 59926 |
| Santa Nino | city | Province of Ilocos Norte | Philippines | 17.9580556 | 120.715 | 587 | 11309 |
| Santa Niño | city | Province of Ilocos Norte | Philippines | 17.9580556 | 120.715 | 587 | 11309 |
| Santa Rita | city | Province of Ilocos Norte | Philippines | 18.1833333 | 120.6333333 | 88 | 54424 |
| Santa Rosa | city | Province of Ilocos Norte | Philippines | 18.1666667 | 120.55 | 114 | 81961 |
| Santa Rosa | city | Province of Ilocos Norte | Philippines | 17.8666667 | 120.5666667 | 328 | 16385 |
| Santa Rosa | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.6166667 | 85 | 43263 |
| Santa Rosa | city | Province of Ilocos Norte | Philippines | 18.1 | 120.6333333 | 236 | 47642 |
| Santa Veronica | city | Province of Ilocos Norte | Philippines | 18.2833333 | 120.6333333 | 137 | 30795 |
| Santiago | city | Province of Ilocos Norte | Philippines | 18.1 | 120.7333333 | 144 | 31293 |
| Santo Domingo | city | Province of Ilocos Norte | Philippines | 18.3666667 | 120.6 | 78 | 11656 |
| Santo Domingo | city | Province of Ilocos Norte | Philippines | 18.3466667 | 120.6069444 | 42 | 11656 |
| Santo Nino | city | Province of Ilocos Norte | Philippines | 17.9580556 | 120.715 | 587 | 11309 |
| Santo Niño | city | Province of Ilocos Norte | Philippines | 17.9580556 | 120.715 | 587 | 11309 |
| Santo Santiago | city | Province of Ilocos Norte | Philippines | 18.0988889 | 120.6325 | 236 | 47642 |
| Santo Tomas | city | Province of Ilocos Norte | Philippines | 18.3166667 | 120.6 | 91 | 22575 |
| Santo Tomas | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6333333 | 29 | 56670 |
| Saoang | city | Province of Ilocos Norte | Philippines | 18.1 | 120.5166667 | 111 | 44127 |
| Sapat | city | Province of Ilocos Norte | Philippines | 17.8336111 | 120.47 | 88 | 37427 |
| Sappiguit | city | Province of Ilocos Norte | Philippines | 17.9333333 | 120.45 | 29 | 13673 |
| Sarrat | city | Province of Ilocos Norte | Philippines | 18.1622222 | 120.6477778 | 98 | 56670 |
| Saud | city | Province of Ilocos Norte | Philippines | 18.5833333 | 120.8 | 134 | 10139 |
| Secretan | city | Province of Ilocos Norte | Philippines | 17.9166667 | 120.5833333 | 278 | 27751 |
| Sideg | city | Province of Ilocos Norte | Philippines | 18.05 | 120.5333333 | 141 | 37721 |
| Sidiran | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.6833333 | 131 | 37521 |
| Silbung | city | Province of Ilocos Norte | Philippines | 18.2166667 | 120.5666667 | 55 | 59926 |
| Similla | city | Province of Ilocos Norte | Philippines | 18.4327778 | 120.6188889 | 843 | 9707 |
| Solsona | city | Province of Ilocos Norte | Philippines | 18.0933333 | 120.7697222 | 150 | 23112 |
| Soucud | city | Province of Ilocos Norte | Philippines | 17.9333333 | 120.45 | 29 | 13673 |
| South Santo Tomas | city | Province of Ilocos Norte | Philippines | 18.3166667 | 120.6 | 91 | 22575 |
| Subec | city | Province of Ilocos Norte | Philippines | 18.5833333 | 120.8166667 | 137 | 10139 |
| Subic | city | Province of Ilocos Norte | Philippines | 18.35 | 120.6333333 | 108 | 15701 |
| Sucsuquen | city | Province of Ilocos Norte | Philippines | 18.1666667 | 120.6833333 | 213 | 28738 |
| Sukit | city | Province of Ilocos Norte | Philippines | 18.425 | 120.6605556 | 1417 | 12184 |
| Sulbec | city | Province of Ilocos Norte | Philippines | 18.3511111 | 120.6361111 | 108 | 15701 |
| Sumader | city | Province of Ilocos Norte | Philippines | 18.0261111 | 120.5775 | 170 | 47608 |
| Sumagar | city | Province of Ilocos Norte | Philippines | 18.0261111 | 120.5775 | 170 | 47608 |
| Sumgar | city | Province of Ilocos Norte | Philippines | 18.0333333 | 120.6 | 321 | 50444 |
| Sungadan | city | Province of Ilocos Norte | Philippines | 18.1166667 | 120.5333333 | 164 | 44127 |
| Surgui | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.5166667 | 39 | 37721 |
| Suto | city | Province of Ilocos Norte | Philippines | 18.5833333 | 120.8 | 134 | 10139 |
| Suyo | city | Province of Ilocos Norte | Philippines | 18.0994444 | 120.5422222 | 101 | 66131 |
| Suyo | city | Province of Ilocos Norte | Philippines | 18.1333333 | 120.6833333 | 104 | 33685 |
| Suyo | city | Province of Ilocos Norte | Philippines | 18.5263889 | 120.6847222 | 495 | 6270 |
| Suyo-Baligat | city | Province of Ilocos Norte | Philippines | 18.0994444 | 120.5422222 | 101 | 66131 |
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