Barangay Sierra

Barangay Sierra forms part of La Paz, a municipality in Tarlac, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Sierra had a population of 2,406. This made it the 14th largest of 21 barangays in La Paz by population, placing it in the middle tier of the municipality. Residents of Barangay Sierra accounted for approximately 3.49% of the total population of La Paz, which stood at 68,952 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Sierra moving from 2,256 residents to 2,406 residents, an intercensal change of +6.6%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Sierra as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

La Paz is a municipality comprising 21 barangays, and serves as the governing unit directly responsible for local services in Barangay Sierra, 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 Sierra ranks 212th 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.