Barangay Didiyan

Classified as a small barangay, Barangay Didiyan is one of the administrative divisions of Palanan in Isabela, Cagayan Valley, Philippines.

According to the 2020 Philippine census, Barangay Didiyan had a population of 1,673. This made it the 3rd largest of 17 barangays in Palanan by population, placing it in the upper half of the municipality. Residents of Barangay Didiyan accounted for approximately 9.46% of the total population of Palanan, which stood at 17,684 in the same census year.

The barangay recorded 1,544 residents in the 2015 intercensal count and 1,673 residents in the 2020 Census — a net change of +8.4%, consistent with a growing settlement. Barangay Didiyan is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Palanan is a municipality comprising 17 barangays, and serves as the governing unit directly responsible for local services in Barangay Didiyan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Isabela, which contains 1,055 barangays across its component cities and municipalities, Barangay Didiyan ranks 364th by 2020 population. Isabela 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.