| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Labbeng | city | Province of Cagayan | Philippines | 18.55 | 121.2833333 | 0 | 5586 |
| Lafu | city | Province of Cagayan | Philippines | 18.1938889 | 121.6394444 | 39 | 12680 |
| Lagum | city | Province of Cagayan | Philippines | 17.7 | 121.85 | 285 | 5420 |
| Lal-lo | city | Province of Cagayan | Philippines | 18.1983333 | 121.665 | 72 | 12680 |
| Lal-loc | city | Province of Cagayan | Philippines | 18.1983333 | 121.665 | 72 | 12680 |
| Lallayug | city | Province of Cagayan | Philippines | 17.7047222 | 121.4388889 | 147 | 11361 |
| Lalug | city | Province of Cagayan | Philippines | 17.7 | 121.4333333 | 196 | 11361 |
| Lamma | city | Province of Cagayan | Philippines | 17.5772222 | 121.7080556 | 108 | 31087 |
| Lamu | city | Province of Cagayan | Philippines | 17.5375 | 121.7691667 | 101 | 35173 |
| Langangan | city | Province of Cagayan | Philippines | 18.5666667 | 121 | 902 | 5380 |
| Langangan | city | Province of Cagayan | Philippines | 18.5525 | 121.2405556 | 173 | 9260 |
| Lanna | city | Province of Cagayan | Philippines | 17.85 | 121.65 | 154 | 16350 |
| Lanna | city | Province of Cagayan | Philippines | 17.695 | 121.7016667 | 236 | 59766 |
| Lanna | city | Province of Cagayan | Philippines | 17.5772222 | 121.7080556 | 108 | 31087 |
| Lannig | city | Province of Cagayan | Philippines | 17.6291667 | 121.6344444 | 164 | 62099 |
| Laoagena | city | Province of Cagayan | Philippines | 17.9333333 | 121.7666667 | 252 | 15655 |
| LaoageƱa | city | Province of Cagayan | Philippines | 17.9333333 | 121.7666667 | 252 | 15655 |
| Lapi | city | Province of Cagayan | Philippines | 17.7166667 | 121.9 | 328 | 4260 |
| Lapogan | city | Province of Cagayan | Philippines | 18.069444 | 121.6061111 | 85 | 21025 |
| Lappi | city | Province of Cagayan | Philippines | 17.7166667 | 121.9 | 328 | 4260 |
| Larion | city | Province of Cagayan | Philippines | 17.6336111 | 121.7652778 | 262 | 41943 |
| Larion Acto | city | Province of Cagayan | Philippines | 17.6336111 | 121.7652778 | 262 | 41943 |
| Lasam | city | Province of Cagayan | Philippines | 18.0669444 | 121.5997222 | 101 | 21025 |
| Lasila | city | Province of Cagayan | Philippines | 18.4 | 121.4333333 | 26 | 14941 |
| Lasilat | city | Province of Cagayan | Philippines | 17.9566667 | 121.8875 | 187 | 9934 |
| Lattac | city | Province of Cagayan | Philippines | 17.835 | 121.5563889 | 101 | 7582 |
| Lattu | city | Province of Cagayan | Philippines | 17.8105556 | 121.315 | 285 | 4347 |
| Launay | city | Province of Cagayan | Philippines | 18.05 | 121.5666667 | 114 | 20866 |
| Lawog | city | Province of Cagayan | Philippines | 18.03 | 121.7369444 | 141 | 14023 |
| Lemu | city | Province of Cagayan | Philippines | 17.5375 | 121.7691667 | 101 | 35173 |
| Leron | city | Province of Cagayan | Philippines | 18.2833333 | 121.85 | 6 | 18692 |
| Lettu | city | Province of Cagayan | Philippines | 17.8105556 | 121.315 | 285 | 4347 |
| Libag | city | Province of Cagayan | Philippines | 17.6030556 | 121.7580556 | 291 | 53278 |
| Linao | city | Province of Cagayan | Philippines | 18.3727778 | 121.5991667 | 3 | 16347 |
| Linao | city | Province of Cagayan | Philippines | 17.6591667 | 121.745 | 262 | 58539 |
| Lingapan | city | Province of Cagayan | Philippines | 17.8141667 | 121.5380556 | 124 | 13133 |
| Lingu | city | Province of Cagayan | Philippines | 17.6394444 | 121.6777778 | 200 | 63747 |
| Lipatan | city | Province of Cagayan | Philippines | 17.8494444 | 121.4788889 | 75 | 7949 |
| Litto | city | Province of Cagayan | Philippines | 17.6527778 | 121.8175 | 324 | 23426 |
| Litto | city | Province of Cagayan | Philippines | 17.6166667 | 121.9 | 1640 | 4824 |
| Liuan | city | Province of Cagayan | Philippines | 17.8136111 | 121.4425 | 52 | 11079 |
| Livan | city | Province of Cagayan | Philippines | 17.8136111 | 121.4425 | 52 | 11079 |
| Logung | city | Province of Cagayan | Philippines | 17.8333333 | 121.7166667 | 219 | 23332 |
| Lomismo | city | Province of Cagayan | Philippines | 18.0352778 | 121.6472222 | 118 | 15181 |
| Lubo | city | Province of Cagayan | Philippines | 17.8305556 | 121.5433333 | 246 | 12702 |
| Lugirao | city | Province of Cagayan | Philippines | 17.8761111 | 121.4475 | 328 | 4971 |
| Lupigui | city | Province of Cagayan | Philippines | 18.2166667 | 121.9833333 | 206 | 9233 |
| Lusang | city | Province of Cagayan | Philippines | 17.8483333 | 121.3766667 | 154 | 6757 |
|
|