Barangay Muñoz West

Classified as a mid-sized barangay, Barangay Muñoz West is one of the administrative divisions of Roxas in Isabela, Cagayan Valley, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Muñoz West had a population of 3,694. This made it the 7th largest of 26 barangays in Roxas by population, placing it in the upper half of the municipality. Residents of Barangay Muñoz West accounted for approximately 5.61% of the total population of Roxas, which stood at 65,839 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Muñoz West moving from 3,623 residents to 3,694 residents, an intercensal change of +2.0%. The trajectory indicates a slowly expanding community. The Philippine Statistics Authority classifies Barangay Muñoz West as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Roxas is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay Muñoz 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 Muñoz West ranks 65th 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.