[2] The municipality of Montemagno contains the frazioni (subdivisions, mainly villages and hamlets) Santo Stefano and San Carlo.

Founded around the year 1000, Montemagno is a hamlet consisting of twelve alleys labeled by Roman numerals connoting its identity, and is included in the "Castelli Aperti" circuit in southern Piedmont.

The Casa sul portone, the last remaining gate of the defensive wall, and the Baroque Cumiana-stone staircase are historically valuable.

The chiesa di San Vittore, the Romanesque church dedicated to Saint Victor[clarification needed], with a high bell tower at its side, is appreciable from an architectural standpoint.

In the last years the small church has been a picnicking place for tourists, thanks to its privileged location at the center of a valley among the hills of the village.