Barangay San Dionisio

Situated in San Rafael, Iloilo, Barangay San Dionisio is one of 9 barangays that make up the municipality within Western Visayas.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Dionisio had a population of 1,484. This made it the 5th largest of 9 barangays in San Rafael by population, placing it in the middle tier of the municipality. Residents of Barangay San Dionisio accounted for approximately 8.34% of the total population of San Rafael, which stood at 17,795 in the same census year.

The barangay recorded 1,321 residents in the 2015 intercensal count and 1,484 residents in the 2020 Census — a net change of +12.3%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay San Dionisio as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Rafael is a municipality comprising 9 barangays, and serves as the governing unit directly responsible for local services in Barangay San Dionisio, including public health, sanitation, peace and order, and civil registration. Within the wider province of Iloilo, which contains 1,901 barangays across its component cities and municipalities, Barangay San Dionisio ranks 447th by 2020 population. Iloilo is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay San Dionisio is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.