The Aosta Valley region consists of no province because of its "Constitutive Act".
We will assume here for simplicity that there is a single province named:
The municipalities belonging to Aosta are reported in what follows:
Allein, Antey Saint Andre`, Aosta, Arnad, Arvier, Avise, Ayas, Aymavilles, Bard, Bionaz, Brissogne, Brusson, Challand Saint Anselme, Challand Saint Victor, Chambave, Chamois, Champdepraz, Champorcher, Charvensod, Chatillon, Cogne, Courmayeur, Donnas, Doues, Emarese, Etroubles, Fenis, Fontainemore, Gaby, Gignod, Gressan, Gressoney La Trinite`, Gressoney Saint Jean, Hone, Introd, Issime, Issogne, Jovencan, La Magdeleine, La Salle, La Thuile, Lillianes, Montjovet, Morgex, Nus, Ollomont, Oyace, Perloz, Pollein, Pont Saint Martin, Pontboset, Pontey, Pre` Saint Didier, Quart, Rhemes Notre Dame, Rhemes Saint Georges, Roisan, Saint Christophe, Saint Denis, Saint Marcel, Saint Nicolas, Saint Oyen, Saint Pierre, Saint Rhemy En Bosses, Saint Vincent, Sarre, Torgnon, Valgrisenche, Valpelline, Valsavarenche, Valtournenche, Verrayes, Verres, Villeneuve.