Barangay Halayhayin

Situated in Siniloan, Laguna, Barangay Halayhayin is one of 20 barangays that make up the municipality within CALABARZON.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Halayhayin had a population of 4,847. This made it the 2nd largest of 20 barangays in Siniloan by population, placing it among the most populous barangays of the municipality. Residents of Barangay Halayhayin accounted for approximately 12.28% of the total population of Siniloan, which stood at 39,460 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Halayhayin moving from 4,555 residents to 4,847 residents, an intercensal change of +6.4%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Halayhayin as urban, reflecting the density and built-up character of the area.

Siniloan is a municipality comprising 20 barangays, and serves as the governing unit directly responsible for local services in Barangay Halayhayin, including public health, sanitation, peace and order, and civil registration. Within the wider province of Laguna, which contains 681 barangays across its component cities and municipalities, Barangay Halayhayin ranks 181st by 2020 population. Laguna is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Halayhayin is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.