Barangay Ajos

Barangay Ajos forms part of Mulanay, a municipality in Quezon, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Ajos had a population of 1,637. This made it the 14th largest of 28 barangays in Mulanay by population, placing it in the middle tier of the municipality. Residents of Barangay Ajos accounted for approximately 2.95% of the total population of Mulanay, which stood at 55,576 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Ajos moving from 1,744 residents to 1,637 residents, an intercensal change of -6.1%. The trajectory indicates a contracting community. Barangay Ajos is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Mulanay is a municipality comprising 28 barangays, and serves as the governing unit directly responsible for local services in Barangay Ajos, including public health, sanitation, peace and order, and civil registration. Within the wider province of Quezon, which contains 1,242 barangays across its component cities and municipalities, Barangay Ajos ranks 394th by 2020 population. Quezon 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 Ajos 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.