# Ilocos Sur's 1st congressional district

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 19th Congress by Ronald Singson of the Nationalist People's Coalition (NPC).

## Representation history

| # | Image | Image | Member | Term of office | Term of office | Legislature | Party | Electoral history | Constituent LGUs |
| # | Image | Image | Member | Start | End | Legislature | Party | Electoral history | Constituent LGUs |
| Ilocos 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. | 1907–1912 Cabugao, Lapog, Magsingal, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 1 | | | Vicente Singson Encarnacion | October 16, 1907 | October 30, 1913 | 2nd | Progresista | Re-elected in 1909. | 1907–1912 Cabugao, Lapog, Magsingal, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 1 | | | Vicente Singson Encarnacion | October 16, 1907 | October 30, 1913 | 3rd | Progresista | Re-elected in 1912. Resigned on appointment as commissioner. | 1912–1916 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 2 | | | Alberto Reyes | October 30, 1913 | October 16, 1916 | 3rd | Progresista | Elected in 1913 to finish Encarnación's term. | 1912–1916 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 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. | 1916–1922 Bantay, 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. | 1916–1922 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 4 | | | Vicente Singson Pablo | June 6, 1922 | June 2, 1925 | 6th | Demócrata | Elected in 1922. | 1922–1935 Bantay, 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. | 1922–1935 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 6 | | | Benito T. Soliven | June 5, 1928 | June 2, 1931 | 8th | Nacionalista Consolidado | Elected in 1928. | 1922–1935 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 7 | | | Pedro Singson Reyes | June 2, 1931 | September 16, 1935 | 9th | Nacionalista Consolidado | Elected in 1931. | 1922–1935 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 7 | | | Pedro Singson Reyes | June 2, 1931 | September 16, 1935 | 10th | Nacionalista Democrático | Re-elected in 1934. | 1922–1935 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| # | Image | Image | Member | Term of office | Term of office | National Assembly | Party | Electoral history | Constituent LGUs |
| # | Image | Image | Member | Start | End | National Assembly | Party | Electoral history | Constituent LGUs |
| Ilocos Sur's 1st district for the National Assembly (Commonwealth of the Philippines) ||||||||||
| (6) | | | Benito T. Soliven | September 16, 1935 | December 30, 1941 | 1st | Nacionalista Demócrata Pro-Independencia | Elected in 1935. | 1935–1941 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| (6) | | | Benito T. Soliven | September 16, 1935 | December 30, 1941 | 2nd | Nacionalista | Re-elected in 1938. | 1935–1941 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| District dissolved into the two-seat Ilocos Sur's at-large district for the National Assembly (Second Philippine Republic). ||||||||||
| # | Image | Image | Member | Term of office | Term of office | Common wealth Congress | Party | Electoral history | Constituent LGUs |
| # | Image | Image | Member | Start | End | Common wealth Congress | Party | Electoral history | Constituent LGUs |
| Ilocos 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. | 1945–1946 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| # | Image | Image | Member | Term of office | Term of office | Congress | Party | Electoral history | Constituent LGUs |
| # | Image | Image | Member | Start | End | Congress | Party | Electoral history | Constituent LGUs |
| Ilocos 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. | 1946–1961 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 9 | | | Floro S. Crisólogo | May 25, 1946 | December 30, 1957 | 2nd | Liberal | Re-elected in 1949. | 1946–1961 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 9 | | | Floro S. Crisólogo | May 25, 1946 | December 30, 1957 | 3rd | Liberal | Re-elected in 1953. | 1946–1961 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 10 | | | Faustino B. Tobia | December 30, 1957 | December 30, 1961 | 4th | Nacionalista | Elected in 1957. | 1946–1961 Bantay, Cabugao, Caoayan, Lapog, Magsingal, San Ildefonso, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| (9) | | | Floro S. Crisólogo | December 30, 1961 | October 18, 1970 | 5th | Liberal | Elected in 1961. | 1961–1972 Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| (9) | | | Floro S. Crisólogo | December 30, 1961 | October 18, 1970 | 6th | Nacionalista | Re-elected in 1965. | 1961–1972 Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| (9) | | | Floro S. Crisólogo | December 30, 1961 | October 18, 1970 | 7th | Nacionalista | Re-elected in 1969. Died. | 1961–1972 Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 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 | LABAN | Elected in 1987. | 1987–present Bantay, 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. | 1987–present Bantay, 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 | 10th | LDP | Re-elected in 1995. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 13 | | | Salacnib F. Baterina | June 30, 1998 | June 30, 2007 | 11th | LAMMP | Elected in 1998. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 13 | | | Salacnib F. Baterina | June 30, 1998 | June 30, 2007 | 12th | Lakas | Re-elected in 2001. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 13 | | | Salacnib F. Baterina | June 30, 1998 | June 30, 2007 | 13th | Lakas | Re-elected in 2004. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 14 | | | Ronald Singson | June 30, 2007 | March 1, 2011 | 14th | Lakas | Elected in 2007. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 14 | | | Ronald Singson | June 30, 2007 | March 1, 2011 | 15th | Nacionalista | Re-elected in 2010. Resigned. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 15 | | | Ryan Luis V. Singson | May 30, 2011 | June 30, 2013 | 15th | Biled | Elected in 2011 to finish Singson's term. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 15 | | | Ryan Luis V. Singson | May 30, 2011 | June 30, 2013 | 15th | Nacionalista (Biled) | Elected in 2011 to finish Singson's term. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| (14) | | | Ronald Singson | June 30, 2013 | June 30, 2016 | 16th | Nacionalista | Elected in 2013. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 16 | | | Deogracias Victor Savellano | June 30, 2016 | June 30, 2022 | 17th | Nacionalista | Elected in 2016. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| 16 | | | Deogracias Victor Savellano | June 30, 2016 | June 30, 2022 | 18th | Nacionalista | Re-elected in 2019. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |
| (14) | | | Ronald Singson | June 30, 2022 | Incumbent | 19th | NPC | Elected in 2022. | 1987–present Bantay, Cabugao, Caoayan, Magsingal, San Ildefonso, San Juan, San Vicente, Santa Catalina, Santo Domingo, Sinait, Vigan |

## Election results
### 2022

2022 Philippine House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | NPC | Ronald Singson | 99,376 | 57.48 |
| | Nacionalista | Deogracias Victor Savellano | 73,503 | 42.52 |
| Total votes | Total votes | Total votes | 172,879 | 100.00 |
| | NPC gain from Nacionalista | NPC gain from Nacionalista | NPC gain from Nacionalista | NPC gain from Nacionalista |

### 2019

2022 Philippine House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Nacionalista | Deogracias Victor Savellano | 76,165 | 50.66 |
| | NPC | Ronald Singson | 73,012 | 48.56 |
| | Independent | Ben Aguilar | 1,165 | 0.77 |
| Total votes | Total votes | Total votes | 150,342 | 100.00 |
| | Nacionalista hold | Nacionalista hold | Nacionalista hold | Nacionalista hold |

### 2016

2016 Philippine House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Nacionalista | Deogracias Victor Savellano | 83,050 | |
| | Independent | Christian Daniel Purisima | 55,193 | |
| Margin of victory | Margin of victory | Margin of victory | | |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 11,711 | |
| Total votes | Total votes | Total votes | 149,954 | |
| | Nacionalista hold | Nacionalista hold | Nacionalista hold | Nacionalista hold |

### 2013

2013 Philippine House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Nacionalista | Ronald Singson | 64,373 | 58.52 |
| | Liberal | Trandy Baterina | 31,978 | 28.85 |
| Margin of victory | Margin of victory | Margin of victory | 32,935 | 29.22% |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 14,502 | 13.08 |
| Total votes | Total votes | Total votes | 110,853 | 100.00 |
| | Nacionalista hold | Nacionalista hold | Nacionalista hold | Nacionalista hold |

### 2011 special

2011 Philippine House of Representatives special election at Ilocos Sur's 1st district :
| Party | Party | Candidate | Votes | % | ±% |
| | Bileg | Ryan Luis Singson | 71,995 | 70.28 | −1.99 |
| | Liberal | Trandy Baterina | 30,445 | 29.72 | 1.99 |
| Margin of victory | Margin of victory | Margin of victory | 41,550 | 40.56 | −3.98 |
| Rejected ballots | Rejected ballots | Rejected ballots | 52 | 0.05 | −9.01 |
| Turnout | Turnout | Turnout | 102,492 | 63.28 | −23.03 |
| | Bileg gain from Nacionalista | Bileg gain from Nacionalista | Swing | −1.99 | |

### 2010

2010 Philippine House of Representatives elections :
| Party | Party | Candidate | Votes | % |
| | Lakas–Kampi | Ronald Singson | 91,875 | 72.27 |
| | Liberal | Trandy Baterina | 35,254 | 27.73 |
| Valid ballots | Valid ballots | Valid ballots | 127,129 | 90.94 |
| Invalid or blank votes | Invalid or blank votes | Invalid or blank votes | 12,660 | 9.06 |
| Total votes | Total votes | Total votes | 139,789 | 100.00 |
| | Lakas–Kampi hold | Lakas–Kampi hold | Lakas–Kampi hold | Lakas–Kampi hold |