Barangay Santa Teresa 1st

Barangay Santa Teresa 1st forms part of Lubao, a municipality in Pampanga, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Santa Teresa 1st had a population of 3,606. This made it the 20th largest of 44 barangays in Lubao by population, placing it in the middle tier of the municipality. Residents of Barangay Santa Teresa 1st accounted for approximately 2.08% of the total population of Lubao, which stood at 173,502 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Santa Teresa 1st changed from 2,856 to 3,606, a shift of +26.3% over the five-year period. This places the barangay among those with growing populations in Lubao. The Philippine Statistics Authority classifies Barangay Santa Teresa 1st as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Lubao is a municipality comprising 44 barangays, and serves as the governing unit directly responsible for local services in Barangay Santa Teresa 1st, including public health, sanitation, peace and order, and civil registration. Within the wider province of Pampanga, which contains 538 barangays across its component cities and municipalities, Barangay Santa Teresa 1st ranks 240th by 2020 population. Pampanga 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 Teresa 1st 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.