Barangay Gangahin

Barangay Gangahin forms part of Pitogo, a municipality in Quezon, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Gangahin had a population of 1,033. This made it the 5th largest of 39 barangays in Pitogo by population, placing it in the upper half of the municipality. Residents of Barangay Gangahin accounted for approximately 4.53% of the total population of Pitogo, which stood at 22,798 in the same census year.

The barangay recorded 985 residents in the 2015 intercensal count and 1,033 residents in the 2020 Census — a net change of +4.9%, consistent with a growing settlement. Barangay Gangahin is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Pitogo is a municipality comprising 39 barangays, and serves as the governing unit directly responsible for local services in Barangay Gangahin, including public health, sanitation, peace and order, and civil registration. Within the wider province of Quezon, which contains 1,242 barangays across its component cities and municipalities, Barangay Gangahin ranks 587th by 2020 population. Quezon is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

The barangay's legislative and executive affairs are handled by a Punong Barangay and the Sangguniang Barangay, elected nationwide during the Barangay and SK Elections. The next BSKE is scheduled for Monday, November 2, 2026, following the synchronized election schedule set by COMELEC Resolution No. 11191.