The Park crosses 13 municipalities through Verbano Cusio Ossola province: Aurano, Beura-Cardezza, Caprezzo, Cossogno, Intragna, Malesco, Miazzina, Premosello Chiovenda, San Bernardino Verbano, Santa Maria Maggiore, Trontano, Valle Cannobina and Vogogna. Only three hamlets are inside the Park boundaries: Cicogna (municipality of Cossogno), Colloro (municipality of Premosello Chiovenda) and Genestredo (municipality of Vogogna) and part of Vogogna city centre.
Municipalies are situated in 4 different valleys: Valle Intrasca and Val Cannobina (in Verbano), Valle Ossola and Val Vigezzo (in Valli Ossolane).