Campuses
- Vigan Campus - Located in Barangay Tamag; houses most of its 14 core colleges, the University Infirmary, and the university's FM radio station
- Sinait Campus - houses the Upland Research and Development Center
- Quimmarayan Campus - houses the agricultural, fishery and research courses; and the Environmental Research and Training Center
- Nalvo Campus - houses the Marine Research and Development Center
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