Barangay Villa Gamiao

Barangay Villa Gamiao forms part of San Mateo, a municipality in Isabela, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Villa Gamiao had a population of 797. This made it the 32nd largest of 33 barangays in San Mateo by population, placing it among the smaller barangays of the municipality. Residents of Barangay Villa Gamiao accounted for approximately 1.20% of the total population of San Mateo, which stood at 66,663 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Villa Gamiao moving from 793 residents to 797 residents, an intercensal change of +0.5%. The trajectory indicates a slowly expanding community. The Philippine Statistics Authority classifies Barangay Villa Gamiao as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Mateo is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Villa Gamiao, 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 Villa Gamiao ranks 771st 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.

Like every Philippine barangay, Barangay Villa Gamiao is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.