Barangay San Agustin

Barangay San Agustin forms part of Concepcion, a municipality in Tarlac, and is classified as a large barangay.

According to the 2020 Philippine census, Barangay San Agustin had a population of 7,429. This made it the 4th largest of 45 barangays in Concepcion by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Agustin accounted for approximately 4.37% of the total population of Concepcion, which stood at 169,953 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Agustin changed from 6,040 to 7,429, a shift of +23.0% over the five-year period. This places the barangay among those with growing populations in Concepcion. Barangay San Agustin is officially classified as urban, reflecting the density and built-up character of the area.

Concepcion is a municipality comprising 45 barangays, and serves as the governing unit directly responsible for local services in Barangay San Agustin, including public health, sanitation, peace and order, and civil registration. Within the wider province of Tarlac, which contains 511 barangays across its component cities and municipalities, Barangay San Agustin ranks 30th by 2020 population. Tarlac 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.