Barangay Poblacion I

Situated in Ternate, Cavite, Barangay Poblacion I is one of 10 barangays that make up the municipality within CALABARZON.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Poblacion I had a population of 1,899. This made it the 7th largest of 10 barangays in Ternate by population, placing it in the middle tier of the municipality. Residents of Barangay Poblacion I accounted for approximately 7.70% of the total population of Ternate, which stood at 24,653 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Poblacion I changed from 1,992 to 1,899, a shift of -4.7% over the five-year period. This places the barangay among those with contracting populations in Ternate. The Philippine Statistics Authority classifies Barangay Poblacion I as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Ternate is a municipality comprising 10 barangays, and serves as the governing unit directly responsible for local services in Barangay Poblacion I, including public health, sanitation, peace and order, and civil registration. Within the wider province of Cavite, which contains 829 barangays across its component cities and municipalities, Barangay Poblacion I ranks 515th by 2020 population. Cavite 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.