Barangay Amboyu-an

Barangay Amboyu-an forms part of San Joaquin, a municipality in Iloilo, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Amboyu-an had a population of 1,229. This made it the 12th largest of 85 barangays in San Joaquin by population, placing it in the upper half of the municipality. Residents of Barangay Amboyu-an accounted for approximately 2.34% of the total population of San Joaquin, which stood at 52,617 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Amboyu-an moving from 1,099 residents to 1,229 residents, an intercensal change of +11.8%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Amboyu-an as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Joaquin is a municipality comprising 85 barangays, and serves as the governing unit directly responsible for local services in Barangay Amboyu-an, 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 Amboyu-an ranks 614th 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 Amboyu-an 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.