Shangshak is flanked by Hungpung in the north, Koso in the south, Ramva in the west and Gamnom and Yengtem in the east.

Locally, the residents speak Shangshak dialect which belongs to the Tibeto-Burman language family.

According to 2011 census,[1] Shangshak Khunou has 174 households with the total of 1025 people of which 532 are male and 493 are female.

The village is home to people of Tangkhul Naga tribe.

Shangshak is one of the 44 villages considered likely to be affected as a catchment area when the Mapithel multi purpose project is finally functional.