San Manuel, officially the Municipality of San Manuel, is a municipality in the province of Pangasinan, Philippines. According to the 2020 cens…San Manuel, officially the Municipality of San Manuel, is a municipality in the province of Pangasinan, Philippines. According to the 2020 census, it has a population of 54,271 people. The town's name originated from early settlers' founder, Don Manuel Sequig, amid the town's existence in 1614, when Poblacion was in Pau with a population of 2,023.