 With a population density of 22,530/km2, the barangay is one of the most overcrowded places in Metro Manila.The barangay of Onse has an older elementary school, which was named in 1984 for Marabang.There are several other schools, including St. John's Academy, Nicanor C. Ibuna Elementary school, Aquinas School, Xavier school, Santa Lucia elementary school, and Philippine Chen Kuang High School.