Barangay San Pedro West

Classified as a mid-sized barangay, Barangay San Pedro West is one of the administrative divisions of Rosales in Pangasinan, Ilocos Region, Philippines.

According to the 2020 Philippine census, Barangay San Pedro West had a population of 4,334. This made it the 1st largest of 37 barangays in Rosales by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Pedro West accounted for approximately 6.50% of the total population of Rosales, which stood at 66,711 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Pedro West changed from 1,954 to 4,334, a shift of +121.8% over the five-year period. This places the barangay among those with growing populations in Rosales. Barangay San Pedro West is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Rosales is a municipality comprising 37 barangays, and serves as the governing unit directly responsible for local services in Barangay San Pedro West, including public health, sanitation, peace and order, and civil registration. Within the wider province of Pangasinan, which contains 1,364 barangays across its component cities and municipalities, Barangay San Pedro West ranks 119th by 2020 population. Pangasinan 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.