Sison, officially the Municipality of Sison (; ; ), is a 3rd class municipality in the province of Pangasinan, Philippines. The town's original name was Alava. According to the 2020 census, it has a population of 52,320 people. History Sison was once part of San Fabian until petitioners from Barrio Bolaoen signed a manifesto on June 30, 1858, expressing their intention of creating a separate pueblo. It was petitioned to the gobernadorcillo of San Fabian and was later endorsed to the Alcalde Mayor of Lingayen on August 8, 1858. After the definition of the jurisdiction of the proposed new pueblo, the administrative proceedings began with the mayor of San Fabian himself, Don Enrique Casaoay, as among those who appeared in behalf of the petitioners. On December 15, 1862, a royal decree was finally issued declaring the creation of a pueblo independent of San Fabian's civil jurisdiction. The pueblo was called Alava. Don Faustino Baclit served as its ad interim head until the pueblo's first elected president, Don Felix Genelazo, assumed his office on March 1, 1868. In 1907, Esperanza, north-east of Alava, was formed into Pinmilapil, Agat, Sagunto, Cauringan, Bila and Colisao (now in San Fabian). Labayug was formed also into Inmalog, Calunetan, San Andres, Alibeng, Bacayao and Killo. Esperanza and Labayug were joined as Artacho, its poblacion, which become a regular municipality. On March 25, 1918, Governor General Francis Burton Harrison signed Executive Order No. 12, s. 1918 consolidating the township of Artacho and the municipality of Alava as the Municipality of Sison. Following this incorporation, Alava was renamed Sison in honor of Don Perfecto Sison, first provincial governor of Pangasinan. Geography Sison is geographically located on the northern portion of Pangasinan, bordering the provincial boundaries of La Union and Benguet. It has a total land area of 81.88 square kilometers. It is bounded on the north by Rosario (La Union), Tuba (Benguet); on the south by Pozorrubio; on the southeast by San Manuel and Binalonan; on the west by San Fabian. The municipality is north of Manila, south of San Fernando City, where the regional office of the national government agencies in Region I are located, east of Lingayen, the provincial capital, and south of Baguio. Barangays Sison is politically subdivided into barangays. These barangays are headed by elected officials: Barangay Captain, Barangay Council, whose members are called Barangay Councilors. All are elected every three years. Climate Demographics