Negros Occidental's 1st congressional district is one of the six congressional districts of the Philippines in the province of Negros Occidental. 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 northern Negros Occidental cities of Escalante and San Carlos, as well as adjacent municipalities of Calatrava, Don Salvador Benedicto and Toboso. It is currently represented in the 20th Congress by Julio A. Ledesma IV of the Nationalist People's Coalition (NPC).
Representation history # Image Member Term of office Legislature Party Electoral history ConstituentLGUsStartEndNegros Occidental's 1st district for the Philippine Assembly District created January 9, 1907. 1 Antonio Ledesma Jayme October 16, 1907 March 13, 1909 1st Nacionalista Elected in 1907. 1907–1916Cadiz, Escalante, Manapla, Sagay, San Carlos, Saravia, Silay, Victorias 2 José López Villanueva October 16, 1909 October 16, 1912 2nd Nacionalista Elected in 1909. 3 Melecio Severino October 16, 1912 May 16, 1915 3rd Nacionalista Elected in 1912.Died.Negros Occidental's 1st district for the House of Representatives of the Philippine Islands 4 Lope P. Severino October 16, 1916 June 6, 1922 4th Nacionalista Elected in 1916. 1916–1925Cadiz, Escalante, Manapla, Sagay, San Carlos, Saravia, Silay, Victorias 5th Re-elected in 1919. 5 Serafín P. Hilado June 6, 1922 June 5, 1928 6th NacionalistaUnipersonalista Elected in 1922. 7th NacionalistaConsolidado Re-elected in 1925. 1925–1935Cadiz, Calatrava, Escalante, Manapla, Sagay, San Carlos, Saravia, Silay, Victorias 6 José Locsin June 5, 1928 June 2, 1931 8th NacionalistaConsolidado Elected in 1928. 7 Enrique Magalona 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 ConstituentLGUsStartEndNegros Occidental's 1st district for the National Assembly (Commonwealth of the Philippines) (7) Enrique Magalona September 16, 1935 December 30, 1941 1st NacionalistaDemocrático Re-elected in 1935. 1935–1941Cadiz, Calatrava, Escalante, Manapla, Sagay, San Carlos, Saravia, Silay, Victorias 2nd Nacionalista Re-elected in 1938. District dissolved into the two-seat Negros Occidental's at-large district for the National Assembly (Second Philippine Republic). # Image Member Term of office CommonwealthCongress Party Electoral history ConstituentLGUsStartEndNegros Occidental's 1st district for the House of Representatives of the Commonwealth of the Philippines District re-created May 24, 1945. (7) Enrique Magalona June 11, 1945 May 25, 1946 1st Nacionalista Re-elected in 1941. 1945–1946Cadiz, Calatrava, Escalante, Manapla, Sagay, San Carlos, Saravia, Silay, Victorias # Image Member Term of office Congress Party Electoral history ConstituentLGUsStartEndNegros Occidental's 1st district for the House of Representatives of the Philippines 8 Vicente F. Gustilo Sr. May 25, 1946 December 30, 1949 1st Nacionalista Elected in 1946. 1946–1949Cadiz, Calatrava, Escalante, Manapla, Sagay, San Carlos, Saravia, Silay, Victorias 9 Francisco Ferrer December 30, 1949 December 30, 1953 2nd Liberal Elected in 1949. 1949–1969Cadiz, Calatrava, Escalante, Manapla, Sagay, San Carlos, Saravia, Silay, Toboso, Victorias 10 José B. Puey December 30, 1953 December 30, 1957 3rd Democratic Elected in 1953. (8) Vicente F. Gustilo Sr. December 30, 1957 December 17, 1962 4th Nacionalista Elected in 1957. 5th Re-elected in 1961.Died. 11 Armando C. Gustilo January 27, 1964 September 23, 1972 Nacionalista Elected in 1963 to finish his father's term. 6th Re-elected in 1965. 7th Re-elected in 1969.Removed from office after imposition of martial law. 1969–1972Cadiz, Calatrava, Enrique B. Magalona, Escalante, Manapla, Sagay, San Carlos, Silay, Toboso, Victorias District dissolved into the sixteen-seat Region VI's at-large district for the Interim Batasang Pambansa, followed by the seven-seat Negros Occidental's at-large district for the Regular Batasang Pambansa. District re-created February 2, 1987. 12 Salvador S. Laguda June 30, 1987 June 30, 1992 8th Lakas ng Bansa Elected in 1987. 1987–presentCalatrava, Escalante, Don Salvador Benedicto, San Carlos, Toboso 13 Tranquilino B. Carmona June 30, 1992 June 30, 1995 9th NPC Elected in 1992. 14 Julio A. Ledesma IV June 30, 1995 June 30, 2004 10th Lakas Elected in 1995. 11th Re-elected in 1998. 12th UNEGA Re-elected in 2001. (13) Tranquilino B. Carmona June 30, 2004 June 30, 2007 13th Lakas Re-elected in 2004. (14) Julio A. Ledesma IV June 30, 2007 June 30, 2016 14th NPC Elected in 2007. 15th Re-elected in 2010. 16th Re-elected in 2013. 15 Melecio J. Yap Jr. June 30, 2016 June 30, 2019 17th NPC Elected in 2016. 16 Gerardo P. Valmayor Jr. June 30, 2019 June 30, 2025 18th NPC Elected in 2019. 19th Re-elected in 2022. (14) Julio A. Ledesma IV June 30, 2025 Incumbent 20th NPC Elected in 2025.
Election results 2025
2022
2019
2016
2013
2010
See also Legislative districts of Negros Occidental
References