Ilocos Sur's 1st congressional district is one of the two congressional districts of the Philippines in the province of Ilocos Sur. It has been represented in the House of Representatives of the Philippines since 1916 and earlier in the Philippine Assembly from 1907 to 1916. The district consists of the provincial capital city of Vigan and adjacent municipalities of Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo and Sinait. It is currently represented in the 20th Congress by Ronald Singson of the Nationalist People's Coalition and Bileg Ti Ilokano.
Representation history # Image Member Term of office Legislature Party Electoral history ConstituentLGUsStartEndIlocos Sur's 1st district for the Philippine Assembly District created January 9, 1907. 1 Vicente Singson Encarnacion October 16, 1907 October 30, 1913 1st Progresista Elected in 1907. 1907–1912Cabugao, Lapog, Magsingal, Santa Catalina, Santo Domingo, Sinait, Vigan 2nd Re-elected in 1909. 3rd Re-elected in 1912.Resigned on appointment as commissioner. 1912–1916Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan 2 Alberto Reyes October 30, 1913 October 16, 1916 Progresista Elected in 1913 to finish Encarnación's term.Ilocos Sur's 1st district for the House of Representatives of the Philippine Islands (2) Alberto Reyes October 16, 1916 June 3, 1919 4th Progresista Re-elected in 1916. 1916–1922Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan 3 Elpidio Quirino June 3, 1919 June 6, 1922 5th Nacionalista Elected in 1919. 4 Vicente Singson Pablo June 6, 1922 June 2, 1925 6th Demócrata Elected in 1922. 1922–1935Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan 5 Simeón Ramos June 2, 1925 June 5, 1928 7th Demócrata Elected in 1925. 6 Benito T. Soliven June 5, 1928 June 2, 1931 8th NacionalistaConsolidado Elected in 1928. 7 Pedro Singson Reyes June 2, 1931 September 16, 1935 9th NacionalistaConsolidado Elected in 1931. 10th NacionalistaDemocrático Re-elected in 1934. # Image Member Term of office NationalAssembly Party Electoral history ConstituentLGUsStartEndIlocos Sur's 1st district for the National Assembly (Commonwealth of the Philippines) (6) Benito T. Soliven September 16, 1935 December 30, 1941 1st NacionalistaDemócrata Pro-Independencia Elected in 1935. 1935–1941Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan 2nd Nacionalista Re-elected in 1938. District dissolved into the two-seat Ilocos Sur's at-large district for the National Assembly (Second Philippine Republic). # Image Member Term of office CommonwealthCongress Party Electoral history ConstituentLGUsStartEndIlocos Sur's 1st district for the House of Representatives of the Commonwealth of the Philippines District re-created May 24, 1945. 8 Jesús O. Serrano June 11, 1945 May 25, 1946 1st Nacionalista Elected in 1941. 1945–1946Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan # Image Member Term of office Congress Party Electoral history ConstituentLGUsStartEndIlocos Sur's 1st district for the House of Representatives of the Philippines 9 Floro S. Crisólogo May 25, 1946 December 30, 1957 1st Nacionalista Elected in 1946. 1946–1961Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan 2nd Liberal Re-elected in 1949. 3rd Re-elected in 1953. 10 Faustino B. Tobia December 30, 1957 December 30, 1961 4th Nacionalista Elected in 1957. (9) Floro S. Crisólogo December 30, 1961 October 18, 1970 5th Liberal Elected in 1961. 1961–1972Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan 6th Nacionalista Re-elected in 1965. 7th Re-elected in 1969.Died. District dissolved into the twelve-seat Region I's at-large district for the Interim Batasang Pambansa, followed by the two-seat Ilocos Sur's at-large district for the Regular Batasang Pambansa. District re-created February 2, 1987. 11 Chavit Singson June 30, 1987 June 30, 1992 8th Independent Elected in 1987. 1987–presentBantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan 12 Mariano M. Tajon June 30, 1992 June 30, 1998 9th LDP Elected in 1992. 10th Lakas Re-elected in 1995. 13 Salacnib F. Baterina June 30, 1998 June 30, 2007 11th LAMMP Elected in 1998. 12th Lakas Re-elected in 2001. 13th Re-elected in 2004. 14 Ronald Singson June 30, 2007 March 7, 2011 14th Lakas Elected in 2007. 15th Nacionalista Re-elected in 2010.Resigned after a conviction. 15 Ryan Luis V. Singson May 30, 2011 June 30, 2013 Biled Elected in 2011 to finish his brother's term. Nacionalista (Biled) (14) Ronald Singson June 30, 2013 June 30, 2016 16th Nacionalista Elected in 2013. 16 Deogracias Victor Savellano June 30, 2016 June 30, 2022 17th Nacionalista(Bileg) Elected in 2016. 18th Re-elected in 2019. (14) Ronald Singson June 30, 2022 Incumbent 19th NPC(Bileg) Elected in 2022. 20th Re-elected in 2025.
Election results 2025
2022
2019
2016
2013
2011 special
2010
See also Legislative districts of Ilocos Sur
References