Barangay Daragutan West

Classified as a small barangay, Barangay Daragutan West is one of the administrative divisions of San Mariano in Isabela, Cagayan Valley, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Daragutan West had a population of 1,829. This made it the 13th largest of 36 barangays in San Mariano by population, placing it in the middle tier of the municipality. Residents of Barangay Daragutan West accounted for approximately 3.04% of the total population of San Mariano, which stood at 60,124 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Daragutan West moving from 1,740 residents to 1,829 residents, an intercensal change of +5.1%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Daragutan West as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Mariano is a municipality comprising 36 barangays, and serves as the governing unit directly responsible for local services in Barangay Daragutan West, 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 Daragutan West ranks 313th 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.