1. Don Mariano Marcos Memorial State University (DMMMSU)
    Bacnotan, La Union 2515
  2. Ilocos Sur Polytechnic State College (ISPSC)
    Sta. Maria, Ilocos Sur 2705
  3. Mariano Marcos State University (MMSU)
    City of Batac, Ilocos Norte 2906
  4. North Luzon Philippines State College
    Candon City, Ilocos Sur
  5. Pangasinan State University (PSU)
    Lingayen, Pangasinan 2401
  6. University of Northern Philippines (UNP)
    City of Vigan, Ilocos Sur 2700