Barangay Santa Ana

Situated in Estancia, Iloilo, Barangay Santa Ana is one of 25 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 Santa Ana had a population of 769. This made it the 22nd largest of 25 barangays in Estancia by population, placing it among the smaller barangays of the municipality. Residents of Barangay Santa Ana accounted for approximately 1.45% of the total population of Estancia, which stood at 53,200 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santa Ana moving from 658 residents to 769 residents, an intercensal change of +16.9%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Santa Ana as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Estancia is a municipality comprising 25 barangays, and serves as the governing unit directly responsible for local services in Barangay Santa Ana, 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 Santa Ana ranks 993rd 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.

Like every Philippine barangay, Barangay Santa Ana is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.