The barangay's total land area is 618 hectares (1,530 acres). According to the 2016 census, it has a population of 1,689. In the 2013 electoral roll, it had 949 registered voters, meaning that 56% of the population are aged 18 and over.

Calanggaman celebrates its annual fiesta on 8 December in honor of their patron saint.

Located on the central part of the municipality, barangay Calanggaman is bounded to the north by Bood, to the west by Casate, to the south by Bay‑ang, and to the east by Imelda. It is about 5 km (3.1 mi) from the town center, Poblacion.

The name of the place came from the Visayan word langgam, which means birds. A large number of migratory birds can be found on this place during wet seasons, where residents can do birdwatching.

There are seven puroks overseen by the elected kagawads.

People in the barangay are mostly farmers who live by planting rice, camote, cassava, banana, and other vegetables. Some till small agricultural lots. Some of population also weave mats, or produce palm oil and coconut products.

...
Wikipedia