| A.C. Ruiz Elementary School | — | — | school/isced0-1 | — |
| Abaca Elementary School | — | — | school/isced0-1 | — |
| Abanqueruan Elementary School | — | — | school/isced0-1 | — |
| Abariongan National High School | — | — | school/isced2-3 | — |
| Abariongan Ruar Elementary School | — | — | school/isced0-1 | — |
| Abariongan Uneg Elementary School | — | — | school/isced0-1 | — |
| Abat Primary School | — | — | school/isced0-1 | — |
| Abatan Elementary School | — | — | school/isced0-1 | — |
| Abbag Elementary School | — | — | school/isced1 | — |
| Abbeg Elementary School | — | — | school/isced0-1 | — |
| Abian Elementary School | — | — | school/isced0-1 | — |
| Abinganan Elementary School | — | — | school/isced1 | — |
| Abolo Elementary School | — | — | school/isced0-1 | — |
| Abra Elementary School | — | — | school/isced0-1 | — |
| Abucay Elementary School | — | — | school/isced0-1 | — |
| Abulug Central Elementary School | — | — | school/isced0-1 | — |
| Abulug National Rural Vocational High School | — | — | school/isced2-3 | — |
| Abulug School of Fisheries | — | — | school/isced2-3 | — |
| Abut Elementary School | — | — | school/isced0-1 | — |
| Abuyo Elementary School | — | — | school/isced0-1 | — |
| Abuyo National High School | — | — | school/isced2-3 | — |
| Acacia Primary School | — | — | school/isced0-1 | — |
| Accusilian Elementary School | — | — | school/isced0-1 | — |
| Adaoag Elementary School | — | — | school/isced1 | — |
| Addalam Primary School | — | — | school/isced0-1 | — |
| Addalam Region High School | — | — | school/isced2 | — |
| Addalam Region High School – Divinan Annex | — | — | school/isced2 | — |
| Adventist University - Northeast Luzon Campus | — | — | university | — |
| Afusing Batu Primary School | — | — | school/isced0-1 | — |
| Afusing National High School | — | — | school/isced2-3 | — |
| Aga Elementary School | — | — | school/isced0-1 | — |
| Agaman Norte Elementary School | — | — | school/isced0-1 | — |
| Agaman Proper Elementary School | — | — | school/isced0-1 | — |
| Agaman Sur Elementary School | — | — | school/isced0-1 | — |
| Agani Elementary School | — | — | school/isced0-1 | — |
| Aggassian Elementary School | — | — | school/isced0-1 | — |
| Aggub Elementary School | — | — | school/isced1 | — |
| Aggub Elementary School | — | — | school/isced0-1 | — |
| Agguirit Elementary School | — | — | school/isced0-1 | — |
| Aggunetan Elementary School | — | — | school/isced0-1 | — |
| Agliam Primary School | — | — | school | — |
| Aglipay East Central School | — | — | school/isced1 | — |
| Aglipay National High School | — | — | school/isced2-3 | — |
| Aglipay West Central School | — | — | school/isced1 | — |
| Agnaoan Primary School | — | — | school/isced0-1 | — |
| Aguiguican Elementary School | — | — | school/isced0-1 | — |
| Aguinaldo Elementary School | — | — | school/isced0-1 | — |
| Aguinaldo Elementary School | — | — | school/isced0-1 | — |
| Aklan Village Elementary School | — | — | school/isced1 | — |
| Alabiao Elementary School | — | — | school/isced0-1 | — |
| Alabug Primary School | — | — | school/isced0-1 | — |
| Alaguia Elementary School | — | — | school/isced0-1 | — |
| Alannay Elementary School | — | — | school/isced0-1 | — |
| Alba Elementary School | — | — | school/isced1 | — |
| Alberto C. Antonio Primary School | — | — | school | — |
| Alcala East Central School | — | — | school/isced0-1 | — |
| Alcala Rural School | — | — | school/isced2-3 | — |
| Alcala West Central School | — | — | school/isced0-1 | — |
| Alcala West Central-Cataraoan Annex | — | — | school | — |
| Alfonso Castañeda Central School | — | — | school/isced1 | — |
| Alfonso Castañeda Central School Annex | — | — | school | — |
| Alfonso Castañeda National High School | — | — | school/isced2-3 | — |
| Alfreda Albano National High School | — | — | school/isced2-3 | — |
| Alfreda Albano National High School-Masipi Annex | — | — | school/isced2 | — |
| Aliaga Elementary School | — | — | school/isced0-1 | — |
| Alibadabad Elementary School | — | — | school/isced0-1 | — |
| Alibadbad National High School | — | — | school/isced2-3 | — |
| Alibago Elementary School | — | — | school/isced0-1 | — |
| Alicia Central School | — | — | school/isced0-1 | — |
| Alicia East Central School | — | — | school/isced0-1 | — |
| Alicia Integrated School | — | — | school/isced0-2 | — |
| Alicia National High School | — | — | school/isced2-3 | — |
| Alicia North Central School | — | — | school/isced0-1 | — |
| Alicia Vocational School | — | — | school/isced2-3 | — |
| Alicia West Elementary School | — | — | school | — |
| Alig Valley National High School | — | — | school/isced2-3 | — |
| Alilinu Elementary School | — | — | school/isced0-1 | — |
| Alimannao Elementary School | — | — | school/isced0-1 | — |
| Alimit Integrated School | — | — | school/isced0-2 | — |
| Alimoan Elementary School | — | — | school/isced0-1 | — |
| Alinguigan 1st Elementary School | — | — | school/isced0-1 | — |
| Alinguigan 2nd Integrated School | — | — | school/isced0-1 | — |
| Alinguigan 3rd Elementary School | — | — | school/isced0-1 | — |
| Alinunu Elementary School | — | — | school/isced0-1 | — |
| Alitongtong Elementary School | — | — | school/isced1 | — |
| Alituntung Elementary School | — | — | school/isced0-1 | — |
| Allacapan Central School | — | — | school/isced0-1 | — |
| Allacapan South Central School | — | — | school/isced1 | — |
| Allacapan Vocational High School | — | — | school/isced2-3 | — |
| Allangigan Elementary School | — | — | school/isced0-1 | — |
| Allasitan Elementary School | — | — | school/isced0-1 | — |
| Alloy Elementary School | — | — | school/isced0-1 | — |
| Almaguer North Elementary School | — | — | school/isced1 | — |
| Almaguer South Elementary School | — | — | school/isced1 | — |
| Alomanay Elementary School | — | — | school/isced0-1 | — |
| Alucao Elementary School | — | — | school/isced0-1 | — |
| Ambaguio Central School | — | — | school/isced0-1 | — |
| Ambaguio National High School | — | — | school/isced2-3 | — |
| Amballo North Elementary School | — | — | school/isced1 | — |
| Amballo Resettlement Elementary School | — | — | school/isced0-1 | — |