| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Abut | city | Province of La Union | Philippines | 16.65 | 120.35 | 252 | 53792 |
| Acao | city | Province of La Union | Philippines | 16.5255556 | 120.3763889 | 255 | 75759 |
| Agdeppa | city | Province of La Union | Philippines | 16.8833333 | 120.4166667 | 203 | 46993 |
| Agoo | city | Province of La Union | Philippines | 16.325 | 120.3686111 | 160 | 48574 |
| Agtipal | city | Province of La Union | Philippines | 16.7333333 | 120.3666667 | 246 | 36805 |
| Aguioas | city | Province of La Union | Philippines | 16.5333333 | 120.4 | 278 | 75759 |
| Al-Alinao Sur | city | Province of La Union | Philippines | 16.5 | 120.4166667 | 259 | 60574 |
| Al-alinao Norte | city | Province of La Union | Philippines | 16.5166667 | 120.4166667 | 255 | 65865 |
| Al-langigan | city | Province of La Union | Philippines | 16.6666667 | 120.3333333 | 242 | 19660 |
| Alainao Norte | city | Province of La Union | Philippines | 16.5166667 | 120.4166667 | 255 | 65865 |
| Alainao Sur | city | Province of La Union | Philippines | 16.5 | 120.4166667 | 259 | 60574 |
| Alibangsay | city | Province of La Union | Philippines | 16.6 | 120.4333333 | 492 | 55849 |
| Aludaid | city | Province of La Union | Philippines | 16.6666667 | 120.3333333 | 242 | 19660 |
| Alzate | city | Province of La Union | Philippines | 16.9 | 120.4 | 6 | 36762 |
| Amantoc | city | Province of La Union | Philippines | 16.6575 | 120.4658333 | 1968 | 21982 |
| Ambalite | city | Province of La Union | Philippines | 16.3 | 120.4666667 | 616 | 35266 |
| Ambangonan | city | Province of La Union | Philippines | 16.2902778 | 120.4797222 | 416 | 29626 |
| Ambangonan | city | Province of La Union | Philippines | 16.3 | 120.4833333 | 298 | 35266 |
| Ambangunan | city | Province of La Union | Philippines | 16.3 | 120.4833333 | 298 | 35266 |
| Ambaracao Norte | city | Province of La Union | Philippines | 16.5333333 | 120.4 | 278 | 75759 |
| Ambaracao Sur | city | Province of La Union | Philippines | 16.5333333 | 120.4 | 278 | 75759 |
| Ambitacay | city | Province of La Union | Philippines | 16.3 | 120.3833333 | 223 | 62993 |
| Amlang | city | Province of La Union | Philippines | 16.25 | 120.4333333 | 321 | 34724 |
| Amontoc | city | Province of La Union | Philippines | 16.6575 | 120.4658333 | 1968 | 21982 |
| Anduyan | city | Province of La Union | Philippines | 16.3488889 | 120.4430556 | 269 | 59366 |
| Angin | city | Province of La Union | Philippines | 16.5113889 | 120.4002778 | 246 | 75759 |
| Ansacuit | city | Province of La Union | Philippines | 16.6666667 | 120.5 | 3280 | 12769 |
| Anteng | city | Province of La Union | Philippines | 16.3833333 | 120.3666667 | 449 | 48741 |
| Apaleng | city | Province of La Union | Philippines | 16.6166667 | 120.3166667 | 180 | 40566 |
| Apatot | city | Province of La Union | Philippines | 16.7888889 | 120.3786111 | 656 | 53965 |
| Apatot | city | Province of La Union | Philippines | 16.85 | 120.45 | 252 | 55373 |
| Apayao | city | Province of La Union | Philippines | 16.6666667 | 120.4666667 | 1640 | 18429 |
| Ar-Arumpang | city | Province of La Union | Philippines | 16.7833333 | 120.4166667 | 328 | 43685 |
| Ar-arampang | city | Province of La Union | Philippines | 16.7833333 | 120.4166667 | 328 | 43685 |
| Areno Norte | city | Province of La Union | Philippines | 16.5 | 120.45 | 764 | 60574 |
| Areno Sur | city | Province of La Union | Philippines | 16.5 | 120.45 | 764 | 60574 |
| Aringay | city | Province of La Union | Philippines | 16.3963889 | 120.3591667 | 127 | 48741 |
| Atic | city | Province of La Union | Philippines | 16.45 | 120.4333333 | 656 | 55076 |
| Atio | city | Province of La Union | Philippines | 16.45 | 120.4333333 | 656 | 55076 |
| Ayaoan | city | Province of La Union | Philippines | 16.8125 | 120.3577778 | 344 | 44794 |
| Ayzoan | city | Province of La Union | Philippines | 16.8125 | 120.3577778 | 344 | 44794 |
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