Barangay Itlugan

Barangay Itlugan forms part of Rosario, a municipality in Batangas, and is classified as a large barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Itlugan had a population of 5,082. This made it the 5th largest of 48 barangays in Rosario by population, placing it among the most populous barangays of the municipality. Residents of Barangay Itlugan accounted for approximately 3.96% of the total population of Rosario, which stood at 128,352 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Itlugan moving from 4,677 residents to 5,082 residents, an intercensal change of +8.7%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Itlugan as urban, reflecting the density and built-up character of the area.

Rosario is a municipality comprising 48 barangays, and serves as the governing unit directly responsible for local services in Barangay Itlugan, 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 Itlugan ranks 114th 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.

Like every Philippine barangay, Barangay Itlugan 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.