| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Caangrian | city | Province of Ilocos Norte | Philippines | 18.4633333 | 120.6372222 | 577 | 9874 |
| Caataban | city | Province of Ilocos Norte | Philippines | 18.15 | 120.55 | 164 | 78852 |
| Caataban | city | Province of Ilocos Norte | Philippines | 18.2333333 | 120.5666667 | 36 | 59926 |
| Cababaan | city | Province of Ilocos Norte | Philippines | 18.3666667 | 120.6 | 78 | 11656 |
| Cababaan | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6666667 | 13 | 33685 |
| Cabacanan | city | Province of Ilocos Norte | Philippines | 18.5666667 | 120.8333333 | 314 | 10139 |
| Cabagoan | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.5166667 | 39 | 37721 |
| Cabangaran | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.5166667 | 39 | 37721 |
| Cabangaran | city | Province of Ilocos Norte | Philippines | 18.3666667 | 120.7833333 | 429 | 7233 |
| Cabangtalan | city | Province of Ilocos Norte | Philippines | 17.85 | 120.45 | 88 | 25726 |
| Cabararaan | city | Province of Ilocos Norte | Philippines | 18.5416667 | 120.6325 | 124 | 2001 |
| Cabaroan | city | Province of Ilocos Norte | Philippines | 17.95 | 120.55 | 246 | 27751 |
| Cabaroan | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.6 | 39 | 43263 |
| Cabaruan | city | Province of Ilocos Norte | Philippines | 18.0333333 | 120.5666667 | 118 | 47608 |
| Cabaruan | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.6 | 39 | 43263 |
| Cabaruan | city | Province of Ilocos Norte | Philippines | 18.1833333 | 120.7166667 | 118 | 14255 |
| Cabaruan | city | Province of Ilocos Norte | Philippines | 18.1166667 | 120.7333333 | 134 | 31293 |
| Cabaruyan | city | Province of Ilocos Norte | Philippines | 7.55 | 120.4833333 | 0 | 0 |
| Cabaugtalan | city | Province of Ilocos Norte | Philippines | 17.85 | 120.45 | 88 | 25726 |
| Cabayo | city | Province of Ilocos Norte | Philippines | 18.3963889 | 120.7522222 | 249 | 9282 |
| Cabisocolan | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.65 | 147 | 30795 |
| Cabittauran | city | Province of Ilocos Norte | Philippines | 17.9666667 | 120.7333333 | 656 | 21591 |
| Cabolalaan | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6166667 | 85 | 70006 |
| Cabugaan | city | Province of Ilocos Norte | Philippines | 18.1847222 | 120.5563889 | 62 | 81961 |
| Cabulalaan | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6166667 | 85 | 70006 |
| Cabulalaan | city | Province of Ilocos Norte | Philippines | 18.5333333 | 120.6333333 | 164 | 5604 |
| Cabulalaon | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.5833333 | 26 | 33263 |
| Cabulalaon | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6166667 | 85 | 70006 |
| Cabunga-an | city | Province of Ilocos Norte | Philippines | 18.1847222 | 120.5563889 | 62 | 81961 |
| Cabusligan | city | Province of Ilocos Norte | Philippines | 18.2836111 | 120.6161111 | 137 | 43263 |
| Cadagasan | city | Province of Ilocos Norte | Philippines | 18.5119444 | 120.7361111 | 659 | 9117 |
| Cadalman | city | Province of Ilocos Norte | Philippines | 18.35 | 120.6333333 | 108 | 15701 |
| Cadaratan | city | Province of Ilocos Norte | Philippines | 18.2958333 | 120.6113889 | 121 | 22575 |
| Cadenglaan | city | Province of Ilocos Norte | Philippines | 18.2666667 | 120.6 | 39 | 43263 |
| Calambeg | city | Province of Ilocos Norte | Philippines | 18.1833333 | 120.7333333 | 239 | 14255 |
| Calayab | city | Province of Ilocos Norte | Philippines | 18.1544444 | 120.5366667 | 95 | 49721 |
| Calayao | city | Province of Ilocos Norte | Philippines | 18.1544444 | 120.5366667 | 95 | 49721 |
| Caldaan | city | Province of Ilocos Norte | Philippines | 17.9666667 | 120.6666667 | 223 | 27042 |
| Cali | city | Province of Ilocos Norte | Philippines | 18.0683333 | 120.6852778 | 131 | 37521 |
| Calioet | city | Province of Ilocos Norte | Philippines | 18.25 | 120.6166667 | 85 | 70006 |
| Callaguip | city | Province of Ilocos Norte | Philippines | 18.0713889 | 120.4866667 | 13 | 16952 |
| Callagulp | city | Province of Ilocos Norte | Philippines | 18.0713889 | 120.4866667 | 13 | 16952 |
| Callusa | city | Province of Ilocos Norte | Philippines | 18.1666667 | 120.7166667 | 124 | 14255 |
| Calumbaya | city | Province of Ilocos Norte | Philippines | 18.4666667 | 120.7166667 | 288 | 12788 |
| Calutit | city | Province of Ilocos Norte | Philippines | 18.2333333 | 120.6166667 | 213 | 70006 |
| Camandigan | city | Province of Ilocos Norte | Philippines | 18.0716667 | 120.6230556 | 285 | 56212 |
| Camandingan | city | Province of Ilocos Norte | Philippines | 18.0716667 | 120.6230556 | 285 | 56212 |
| Camanga | city | Province of Ilocos Norte | Philippines | 17.9080556 | 120.5725 | 328 | 22441 |
| Camangaan | city | Province of Ilocos Norte | Philippines | 17.9166667 | 120.5666667 | 223 | 27751 |
| Camangaan | city | Province of Ilocos Norte | Philippines | 18.0833333 | 120.7 | 127 | 37521 |
| Camunga | city | Province of Ilocos Norte | Philippines | 17.9080556 | 120.5725 | 328 | 22441 |
| Caniogan | city | Province of Ilocos Norte | Philippines | 17.9333333 | 120.6666667 | 278 | 16174 |
| Capa-cuan | city | Province of Ilocos Norte | Philippines | 18.0422222 | 120.6069444 | 328 | 56212 |
| Capac-cuan | city | Province of Ilocos Norte | Philippines | 18.0422222 | 120.6069444 | 328 | 56212 |
| Capacacan | city | Province of Ilocos Norte | Philippines | 17.9833333 | 120.65 | 246 | 33357 |
| Capalngan | city | Province of Ilocos Norte | Philippines | 18.1833333 | 120.5666667 | 72 | 81961 |
| Capangdanan | city | Province of Ilocos Norte | Philippines | 17.9666667 | 120.5333333 | 147 | 25798 |
| Caparia-an | city | Province of Ilocos Norte | Philippines | 18.0833333 | 120.6833333 | 127 | 37521 |
| Caparispisan | city | Province of Ilocos Norte | Philippines | 18.6047222 | 120.7983333 | 124 | 7763 |
| Capasam | city | Province of Ilocos Norte | Philippines | 18.1166667 | 120.6666667 | 141 | 36276 |
| Capasan | city | Province of Ilocos Norte | Philippines | 18.1166667 | 120.6666667 | 141 | 36276 |
| Capraspisan | city | Province of Ilocos Norte | Philippines | 18.6047222 | 120.7983333 | 124 | 7763 |
| Capurictan | city | Province of Ilocos Norte | Philippines | 18.1333333 | 120.7333333 | 144 | 22723 |
| Caramuangen | city | Province of Ilocos Norte | Philippines | 18.5333333 | 120.8 | 141 | 9933 |
| Caraoca | city | Province of Ilocos Norte | Philippines | 17.9333333 | 120.6833333 | 393 | 16174 |
| Carasi | city | Province of Ilocos Norte | Philippines | 18.1988889 | 120.8683333 | 1797 | 6893 |
| Carawan | city | Province of Ilocos Norte | Philippines | 18.3902778 | 120.6036111 | 104 | 9424 |
| Caray | city | Province of Ilocos Norte | Philippines | 17.95 | 120.7333333 | 915 | 11309 |
| Carazi | city | Province of Ilocos Norte | Philippines | 18.1988889 | 120.8683333 | 1797 | 6893 |
| Caribquib | city | Province of Ilocos Norte | Philippines | 18 | 120.6666667 | 164 | 27042 |
| Caroan | city | Province of Ilocos Norte | Philippines | 18.3902778 | 120.6036111 | 104 | 9424 |
| Caruan | city | Province of Ilocos Norte | Philippines | 18.3902778 | 120.6036111 | 104 | 9424 |
| Carusiban | city | Province of Ilocos Norte | Philippines | 18.3 | 120.6 | 111 | 22575 |
| Casili | city | Province of Ilocos Norte | Philippines | 18.2305556 | 120.56 | 36 | 59926 |
| Casili | city | Province of Ilocos Norte | Philippines | 18.2166667 | 120.5666667 | 55 | 59926 |
| Casili | city | Province of Ilocos Norte | Philippines | 18.2333333 | 120.6 | 164 | 70006 |
| Cataban | city | Province of Ilocos Norte | Philippines | 18.2333333 | 120.5666667 | 36 | 59926 |
| Catagtagan | city | Province of Ilocos Norte | Philippines | 17.9755556 | 120.7063889 | 282 | 27042 |
| Catagtaguen | city | Province of Ilocos Norte | Philippines | 17.9755556 | 120.7063889 | 282 | 27042 |
| Catangraran | city | Province of Ilocos Norte | Philippines | 18.0833333 | 120.8166667 | 561 | 17434 |
| Catuguing | city | Province of Ilocos Norte | Philippines | 18.15 | 120.6 | 147 | 77656 |
| Catur | city | Province of Ilocos Norte | Philippines | 17.9166667 | 120.4833333 | 114 | 25698 |
| Caunayan | city | Province of Ilocos Norte | Philippines | 18.61 | 120.8363889 | 164 | 8068 |
| Cavit | city | Province of Ilocos Norte | Philippines | 18.2 | 120.5333333 | 3 | 46413 |
| Cayubog | city | Province of Ilocos Norte | Philippines | 18.0666667 | 120.5166667 | 39 | 37721 |
| Colo | city | Province of Ilocos Norte | Philippines | 18.088889 | 120.5675 | 144 | 66131 |
| Comcomloong | city | Province of Ilocos Norte | Philippines | 17.9833333 | 120.5166667 | 242 | 25798 |
| Coran | city | Province of Ilocos Norte | Philippines | 18.5166667 | 120.6166667 | 196 | 5041 |
| Corocor | city | Province of Ilocos Norte | Philippines | 18.2833333 | 120.5833333 | 29 | 33263 |
| Cubol | city | Province of Ilocos Norte | Philippines | 18 | 120.5166667 | 42 | 25798 |
| Culao | city | Province of Ilocos Norte | Philippines | 18.0566667 | 120.7108333 | 157 | 35188 |
| Culo | city | Province of Ilocos Norte | Philippines | 18.088889 | 120.5675 | 144 | 66131 |
| Curarig | city | Province of Ilocos Norte | Philippines | 18.2333333 | 120.6 | 164 | 70006 |
| Currimao | city | Province of Ilocos Norte | Philippines | 18.0205556 | 120.4825 | 3 | 14255 |
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