Sadanga is a philippine municipality in the province Mountain Province in Region Cordillera Administrative Region which belongs to the Luzon group of islands. The municipality Sadanga is seated about 11 km north-east of province capital Bontoc and about 287 km north of Philippine main capital Manila.
Sadanga is a 5th class municipality. Regarding urbanization Sadanga is classified as rural. Sadanga occupies an area of 83.30 km². By the end of 2007 Sadanga was the home of 9,706 residents. Thus by average 116.52 people are living on one km².
Administratively the Municipality of Sadanga is subdivided into 8 barangays. One forms the center of the city wheras the other 7 are in the outlying areas. Some of them are even several kilometers away from the center of the Municipality. The most populous are Bekigan, Sacasacan, Anabel, Demang, Saclit, Belwang, Poblacion, Betwagan.
Among the bigger cities and municipalities in the neighborhood of Sadanga there are City Of Santiago (Isabela) 76 km south-east, City Of Cauayan (Isabela) 84 km east-south-east, City Of San Fernando (La Union) 97 km south-west, La Trinidad (Benguet) 90 km south-west, Tuguegarao City (Cagayan) 88 km east-north-east, Baguio City (Benguet) 95 km south-south-west, Solana (Cagayan) 88 km north-east, City Of Tabuk (Kalinga) 55 km east-north-east, City Of Isabela (City Of Isabela) 99 km east-south-east as well as 83 km south-east of Sadanga the municipality Echague (Isabela).