Barangay Zone I (Pob.)

Barangay Zone I (Pob.) forms part of Tubungan, a municipality in Iloilo, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Zone I (Pob.) had a population of 406. This made it the 25th largest of 48 barangays in Tubungan by population, placing it in the middle tier of the municipality. Residents of Barangay Zone I (Pob.) accounted for approximately 1.76% of the total population of Tubungan, which stood at 23,021 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Zone I (Pob.) moving from 465 residents to 406 residents, an intercensal change of -12.7%. The trajectory indicates a contracting community. Barangay Zone I (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Tubungan is a municipality comprising 48 barangays, and serves as the governing unit directly responsible for local services in Barangay Zone I (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Iloilo, which contains 1,901 barangays across its component cities and municipalities, Barangay Zone I (Pob.) ranks 1452nd by 2020 population. Iloilo 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.