Sadanga was one of several municipalities in Mountain Province which would have been flooded by the Chico River Dam Project during the Marcos dictatorship, alongside Bauko, Bontoc, Sabangan, Sagada, and parts of Barlig.

Poverty incidence of Sadanga Source: Philippine Statistics Authority[12][13][14][15][16][17][18][19] Sadanga, belonging to the lone congressional district of the province of Mountain Province, is governed by a mayor designated as its local chief executive and by a municipal council as its legislative body in accordance with the Local Government Code.

The people also have their own back-strap loom weaving culture, epic chants for planting and harvesting rice, rice terracing practices, indigenous rituals to the gods such as the pumatay (ritual where pawid stalks are burnt while cooking meat, then the food is served to the gods), and vernacular house architecture.

[21] The most prominent tradition of the Isadanga people is the enforcement of the teer (day of rest) and closure of the village from visitors.

[21] The next step after the announcement is made is to establish the fayavey (long tree stalks) at both sides of the road entrance of the town.

Littering and any other form of destruction within the site, and the entire valley in general, is strictly prohibited.