Barangay Tamis-ac

Barangay Tamis-ac forms part of Concepcion, a municipality in Iloilo, and is classified as a very small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Tamis-ac had a population of 469. This made it the 21st largest of 25 barangays in Concepcion by population, placing it among the smaller barangays of the municipality. Residents of Barangay Tamis-ac accounted for approximately 1.05% of the total population of Concepcion, which stood at 44,633 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Tamis-ac moving from 532 residents to 469 residents, an intercensal change of -11.8%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Tamis-ac as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Concepcion is a municipality comprising 25 barangays, and serves as the governing unit directly responsible for local services in Barangay Tamis-ac, 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 Tamis-ac ranks 1358th 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 Tamis-ac 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.