Barangay San Martin

Barangay San Martin forms part of Concepcion, a municipality in Tarlac, and is classified as a very small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Martin had a population of 447. This made it the 44th largest of 45 barangays in Concepcion by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Martin accounted for approximately 0.26% 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 Martin changed from 408 to 447, a shift of +9.6% over the five-year period. This places the barangay among those with growing populations in Concepcion. The Philippine Statistics Authority classifies Barangay San Martin as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Concepcion is a municipality comprising 45 barangays, and serves as the governing unit directly responsible for local services in Barangay San Martin, 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 Martin ranks 496th 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.