Barangay Diatagon

Barangay Diatagon forms part of Lianga, a municipality in Surigao Del Sur, and is classified as a large barangay.

According to the 2020 Philippine census, Barangay Diatagon had a population of 7,792. This made it the 1st largest of 13 barangays in Lianga by population, placing it among the most populous barangays of the municipality. Residents of Barangay Diatagon accounted for approximately 23.01% of the total population of Lianga, which stood at 33,869 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Diatagon moving from 6,198 residents to 7,792 residents, an intercensal change of +25.7%. The trajectory indicates a growing community. Barangay Diatagon is officially classified as urban, reflecting the density and built-up character of the area.

Lianga is a municipality comprising 13 barangays, and serves as the governing unit directly responsible for local services in Barangay Diatagon, including public health, sanitation, peace and order, and civil registration. Within the wider province of Surigao Del Sur, which contains 309 barangays across its component cities and municipalities, Barangay Diatagon ranks 7th by 2020 population. Surigao Del Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Diatagon is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.