Barangay Mabanengbeng 2nd

Classified as a very small barangay, Barangay Mabanengbeng 2nd is one of the administrative divisions of Bacnotan in La Union, Ilocos Region, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Mabanengbeng 2nd had a population of 374. This made it the 44th largest of 47 barangays in Bacnotan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Mabanengbeng 2nd accounted for approximately 0.84% of the total population of Bacnotan, which stood at 44,388 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Mabanengbeng 2nd moving from 341 residents to 374 residents, an intercensal change of +9.7%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Mabanengbeng 2nd as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bacnotan is a municipality comprising 47 barangays, and serves as the governing unit directly responsible for local services in Barangay Mabanengbeng 2nd, including public health, sanitation, peace and order, and civil registration. Within the wider province of La Union, which contains 576 barangays across its component cities and municipalities, Barangay Mabanengbeng 2nd ranks 566th by 2020 population. La Union 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.