Barangay Camastilisan

Classified as a mid-sized barangay, Barangay Camastilisan is one of the administrative divisions of Calaca in Batangas, CALABARZON, Philippines.

According to the 2020 Philippine census, Barangay Camastilisan had a population of 4,172. This made it the 4th largest of 40 barangays in Calaca by population, placing it among the most populous barangays of the municipality. Residents of Barangay Camastilisan accounted for approximately 4.78% of the total population of Calaca, which stood at 87,361 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Camastilisan moving from 4,147 residents to 4,172 residents, an intercensal change of +0.6%. The trajectory indicates a slowly expanding community. Barangay Camastilisan is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Calaca is a municipality comprising 40 barangays, and serves as the governing unit directly responsible for local services in Barangay Camastilisan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Batangas, which contains 1,078 barangays across its component cities and municipalities, Barangay Camastilisan ranks 168th by 2020 population. Batangas 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.