| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| La Paz | city | Province of Isabela | Philippines | 16.9136111 | 121.6705556 | 196 | 55891 |
| Labinab | city | Province of Isabela | Philippines | 16.9277778 | 121.7908333 | 131 | 42233 |
| Labinab | city | Province of Isabela | Philippines | 16.9872222 | 121.8016667 | 127 | 46351 |
| Labinab Grande | city | Province of Isabela | Philippines | 16.9880556 | 121.8286111 | 101 | 46351 |
| Lacab | city | Province of Isabela | Philippines | 16.5483333 | 121.6952778 | 252 | 14965 |
| Lalauanan | city | Province of Isabela | Philippines | 17.2266667 | 121.8491667 | 144 | 25614 |
| Lalog | city | Province of Isabela | Philippines | 16.9891667 | 121.7191667 | 127 | 42458 |
| Langa | city | Province of Isabela | Philippines | 17.3333333 | 121.7833333 | 127 | 26985 |
| Lanna | city | Province of Isabela | Philippines | 17.325 | 121.8036111 | 150 | 25413 |
| Lanteng | city | Province of Isabela | Philippines | 17.05 | 121.8333333 | 160 | 34676 |
| Lanting | city | Province of Isabela | Philippines | 17.1063889 | 121.65 | 187 | 47049 |
| Lapogan | city | Province of Isabela | Philippines | 17.2175 | 121.8366667 | 150 | 25614 |
| Lapusan | city | Province of Isabela | Philippines | 17.1275 | 122.4275 | 19 | 725 |
| Lapuz | city | Province of Isabela | Philippines | 16.9833333 | 121.6333333 | 200 | 45061 |
| Lasedeco Number Two | city | Province of Isabela | Philippines | 17.0922222 | 121.6147222 | 236 | 43108 |
| Lasedeco Numero Dos | city | Province of Isabela | Philippines | 17.0922222 | 121.6147222 | 236 | 43108 |
| Lattu | city | Province of Isabela | Philippines | 17.3444444 | 121.75 | 164 | 29422 |
| Lattu | city | Province of Isabela | Philippines | 17.4666667 | 121.7833333 | 200 | 22556 |
| Layus | city | Province of Isabela | Philippines | 16.75 | 121.75 | 141 | 27830 |
| Lenon | city | Province of Isabela | Philippines | 17.0361111 | 121.8158333 | 157 | 44253 |
| Lenzon | city | Province of Isabela | Philippines | 17.0361111 | 121.8158333 | 157 | 44253 |
| Libati | city | Province of Isabela | Philippines | 17.0166667 | 122.2833333 | 2696 | 2766 |
| Libertad | city | Province of Isabela | Philippines | 16.6619444 | 121.6386111 | 262 | 24940 |
| Lingaling | city | Province of Isabela | Philippines | 17.4777778 | 121.7602778 | 157 | 22556 |
| Lingaling | city | Province of Isabela | Philippines | 17.1883333 | 121.8380556 | 154 | 24701 |
| Lingelin | city | Province of Isabela | Philippines | 17.1883333 | 121.8380556 | 154 | 24701 |
| Linglingay | city | Province of Isabela | Philippines | 16.8002778 | 121.6980556 | 183 | 50704 |
| Linumut | city | Province of Isabela | Philippines | 16.55 | 121.8 | 416 | 12363 |
| Liwanag | city | Province of Isabela | Philippines | 17.2386111 | 121.8661111 | 301 | 25614 |
| Loria | city | Province of Isabela | Philippines | 16.7166667 | 121.7666667 | 265 | 27830 |
| Lubub | city | Province of Isabela | Philippines | 16.8366667 | 121.8216667 | 144 | 35294 |
| Lucban | city | Province of Isabela | Philippines | 17.05 | 121.8333333 | 160 | 34676 |
| Lucban | city | Province of Isabela | Philippines | 16.9952778 | 121.9772222 | 295 | 21406 |
| Lullutan | city | Province of Isabela | Philippines | 17.15 | 121.8602778 | 173 | 24520 |
| Luna | city | Province of Isabela | Philippines | 16.9725 | 121.7302778 | 170 | 42458 |
| Luna | city | Province of Isabela | Philippines | 17.0333333 | 121.8333333 | 154 | 44253 |
| Lupigue | city | Province of Isabela | Philippines | 17.0772222 | 122.077778 | 984 | 19618 |
| Lupigui | city | Province of Isabela | Philippines | 17.0772222 | 122.077778 | 984 | 19618 |
| Luquilu | city | Province of Isabela | Philippines | 17.4333333 | 121.7666667 | 141 | 21259 |
| Luyao | city | Province of Isabela | Philippines | 16.9833333 | 121.7333333 | 164 | 42458 |
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