Bulacan's 1st congressional district

Bulacan's 1st congressional district is one of the seven congressional districts of the Philippines in the province of Bulacan. 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 Malolos and adjacent municipalities of Bulakan, Calumpit, Hagonoy, Paombong and Pulilan. It is currently represented in the 19th Congress by Danilo A. Domingo of the National Unity Party (NUP).

Prior to its second dissolution in 1972, the first district encompassed the western Bulacan municipalities of Balagtas, Bulacan (now Bulakan), Bustos, Calumpit, Guiguinto (formerly Bigaa), Hagonoy, Malolos, Paombong, Plaridel (formerly Quingua), and Pulilan. Following the restoration of the Congress in 1987, it was reduced to encompass six municipalities in its present jurisdiction, while four other municipalities were reassigned to the second district.

Representation history
{| class=wikitable ! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | Legislature ! rowspan="2" | Party ! rowspan="2" | Electoral history ! rowspan="2" | Constituent LGUs !Start!!End
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Bulacan's 1st district for the Philippine Assembly

 * colspan="9" style="text-align:center;" | District created January 9, 1907.
 * style="text-align:center;" | 1
 * style="color:inherit;background:;" |
 * Aguedo Velarde
 * October 16, 1907
 * October 16, 1909
 * style="text-align:center;" | 1st
 * Nacionalista
 * Elected in 1907.
 * style="text-align:center;" | 1907–1909 Bulacan, Calumpit, Hagonoy, Malolos, Paombong, Quingua
 * style="text-align:center;" | 2
 * style="color:inherit;background:;" |
 * Hermogenes Reyes
 * October 16, 1909
 * October 16, 1912
 * style="text-align:center;" | 2nd
 * Nacionalista
 * Elected in 1909.
 * style="text-align:center;" | 1909–1912 Bulacan, Calumpit, Hagonoy, Malolos, Paombong, Pulilan, Quingua
 * style="text-align:center;" | (1)
 * style="color:inherit;background:;" |
 * Aguedo Velarde
 * October 16, 1912
 * December 22, 1913
 * rowspan="2" style="text-align:center;" | 3rd
 * Nacionalista
 * Elected in 1912. Died.
 * rowspan="2" style="text-align:center;" | 1912–1916 Bigaa, Bulacan, Calumpit, Hagonoy, Malolos, Paombong, Pulilan, Quingua
 * style="text-align:center;" | 3
 * style="color:inherit;background:;" |
 * Ambrosio Santos
 * May 15, 1914
 * October 16, 1916
 * Nacionalista
 * Elected in 1914 to finish Velarde's term.
 * colspan="9" style="text-align:center;" |
 * May 15, 1914
 * October 16, 1916
 * Nacionalista
 * Elected in 1914 to finish Velarde's term.
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Bulacan's 1st district for the House of Representatives of the Philippine Islands
! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | National Assembly ! rowspan="2" | Party ! rowspan="2" | Electoral history ! rowspan="2" | Constituent LGUs !Start!!End
 * style="text-align:center;" | 4
 * style="color:inherit;background:#FFFFFF"|
 * Mariano Escueta
 * October 16, 1916
 * June 3, 1919
 * style="text-align:center;" | 4th
 * Liga Popular
 * Elected in 1916.
 * style="text-align:center;" | 1916–1919 Bigaa, Bulacan, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Pulilan, Quingua
 * rowspan="3" style="text-align:center;" | 5
 * rowspan="3" style="color:inherit;background:;" |
 * rowspan="3" | José Padilla
 * rowspan="3" | June 3, 1919
 * rowspan="3" | June 5, 1928
 * style="text-align:center;" | 5th
 * rowspan="3" | Demócrata
 * Elected in 1919.
 * rowspan="6" style="text-align:center;" | 1919–1935 Bigaa, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Pulilan, Quingua
 * style="text-align:center;" | 6th
 * Re-elected in 1922.
 * style="text-align:center;" | 7th
 * Re-elected in 1925.
 * style="text-align:center;" | 6
 * style="color:inherit;background:;" |
 * Ángelo Suntay
 * June 5, 1928
 * June 2, 1931
 * style="text-align:center;" | 8th
 * Demócrata
 * Elected in 1928.
 * rowspan="2" style="text-align:center;" | 7
 * style="color:inherit;background:;" |
 * rowspan="2" | Francisco Afan Delgado
 * rowspan="2" | June 2, 1931
 * rowspan="2" | September 16, 1935
 * style="text-align:center;" | 9th
 * Nacionalista Consolidado
 * Elected in 1931.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 10th
 * Nacionalista Democrático
 * Re-elected in 1934.
 * Nacionalista Consolidado
 * Elected in 1931.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 10th
 * Nacionalista Democrático
 * Re-elected in 1934.
 * Re-elected in 1934.
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Bulacan's 1st district for the National Assembly (Commonwealth of the Philippines)
! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | Common wealth Congress ! rowspan="2" | Party ! rowspan="2" | Electoral history ! rowspan="2" | Constituent LGUs !Start!!End
 * rowspan="2" style="text-align:center;" | 8
 * style="color:inherit;background:;" |
 * rowspan="2" | Nicolas Buendia
 * rowspan="2" | September 16, 1935
 * rowspan="2" | December 30, 1941
 * style="text-align:center;" | 1st
 * Nacionalista Democrático
 * Elected in 1935.
 * style="text-align:center;" | 1935–1938 Bigaa, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Pulilan, Quingua
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 2nd
 * Nacionalista
 * Re-elected in 1938.
 * style="text-align:center;" | 1938–1941 Bigaa, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Plaridel, Pulilan
 * colspan="9" style="text-align:center;" | District dissolved into the two-seat Bulacan's at-large district for the National Assembly (Second Philippine Republic).
 * style="text-align:center;" | 1938–1941 Bigaa, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Plaridel, Pulilan
 * colspan="9" style="text-align:center;" | District dissolved into the two-seat Bulacan's at-large district for the National Assembly (Second Philippine Republic).
 * colspan="9" style="text-align:center;" | District dissolved into the two-seat Bulacan's at-large district for the National Assembly (Second Philippine Republic).
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Bulacan's 1st district for the House of Representatives of the Commonwealth of the Philippines
! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | Congress ! rowspan="2" | Party ! rowspan="2" | Electoral history ! rowspan="2" | Constituent LGUs !Start!!End
 * colspan="9" style="text-align:center;" | District re-created May 24, 1945.
 * style="text-align:center;" | 9
 * style="color:inherit;background:;" |
 * León Valencia
 * style="text-align:center;" | 1st
 * Nacionalista
 * Elected in 1941. Died before start of term.
 * style="text-align:center;" | 1945–1946 Bigaa, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Plaridel, Pulilan
 * style="text-align:center;" | 1st
 * Nacionalista
 * Elected in 1941. Died before start of term.
 * style="text-align:center;" | 1945–1946 Bigaa, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Plaridel, Pulilan
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Bulacan's 1st district for the House of Representatives of the Philippines

 * style="text-align:center;" | 10
 * style="color:inherit;background:;" |
 * Jesús B. Lava
 * rowspan="2" style="text-align:center;" | 1st
 * Democratic Alliance
 * Elected in 1946. Did not serve term due to electoral protest.
 * rowspan="8" style="text-align:center;" | 1946–1969 Bigaa, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Plaridel, Pulilan
 * rowspan="2" style="text-align:center;" | 11
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="2" | Florante C. Roque
 * rowspan="2" | May 25, 1946
 * rowspan="2" | May 4, 1953
 * rowspan="2" | Liberal
 * Declared winner of 1946 elections.
 * rowspan="2" style="text-align:center;" | 2nd
 * Re-elected in 1949. Removed from office after electoral protest.
 * rowspan="2" style="text-align:center;" | 12
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="2" | Erasmo R. Cruz
 * rowspan="2" | May 4, 1953
 * rowspan="2" | December 30, 1957
 * rowspan="2" | Nacionalista
 * Declared winner of 1949 elections.
 * style="text-align:center;" | 3rd
 * Re-elected in 1953.
 * style="text-align:center;" | 13
 * style="color:inherit;background:;" |
 * José C. Suntay Jr.
 * December 30, 1957
 * December 30, 1961
 * style="text-align:center;" | 4th
 * Liberal
 * Elected in 1957.
 * rowspan="3" style="text-align:center;" | 14
 * rowspan="3" style="color:inherit;background:;" |
 * rowspan="3" | Teodulo C. Natividad
 * rowspan="3" | December 30, 1961
 * rowspan="3" | September 23, 1972
 * style="text-align:center;" | 5th
 * rowspan="3" | Nacionalista
 * Elected in 1961.
 * style="text-align:center;" | 6th
 * Re-elected in 1965.
 * style="text-align:center;" | 7th
 * Re-elected in 1969. Removed from office after imposition of martial law.
 * style="text-align:center;" | 1969–1972 Balagtas, Bulacan, Bustos, Calumpit, Guiguinto, Hagonoy, Malolos, Paombong, Plaridel, Pulilan
 * colspan="9" style="text-align:center;" | District dissolved into the sixteen-seat Region III's at-large district for the Interim Batasang Pambansa, followed by the four-seat Bulacan's at-large district for the Regular Batasang Pambansa.
 * colspan="9" style="text-align:center;" | District re-created February 2, 1987.
 * style="text-align:center;" | 15
 * style="color:inherit;background:;" |
 * Francisco B. Aniag Jr.
 * June 30, 1987
 * June 30, 1992
 * style="text-align:center;" | 8th
 * Lakas ng Bansa
 * Elected in 1987.
 * rowspan="6" style="text-align:center;" | 1987–2007 Bulacan, Calumpit, Hagonoy, Malolos, Paombong, Pulilan
 * rowspan="2" style="text-align:center;" | (14)
 * style="color:inherit;background:;" |
 * rowspan="2" | Teodulo C. Natividad
 * rowspan="2" | June 30, 1992
 * rowspan="2" | June 30, 1998
 * style="text-align:center;" | 9th
 * LDP
 * Elected in 1992.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 10th
 * LAMMP
 * Re-elected in 1995.
 * rowspan="3" style="text-align:center;" | 16
 * style="color:inherit;background:;" |
 * rowspan="3" | Wilhelmino Sy-Alvarado
 * rowspan="3" | June 30, 1998
 * rowspan="3" | June 30, 2007
 * style="text-align:center;" | 11th
 * LAMMP
 * Elected in 1998.
 * rowspan="2" style="color:inherit;background:;" |
 * style="text-align:center;" | 12th
 * rowspan="3" | Lakas
 * Re-elected in 2001.
 * style="text-align:center;" | 13th
 * Re-elected in 2004.
 * rowspan="3" style="text-align:center;" | 17
 * style="color:inherit;background:;" |
 * rowspan="3" | Victoria Sy-Alvarado
 * rowspan="3" | June 30, 2007
 * rowspan="3" | June 30, 2016
 * style="text-align:center;" | 14th
 * Elected in 2007.
 * rowspan="7" style="text-align:center;" | 2007–present Bulakan, Calumpit, Hagonoy, Malolos, Paombong, Pulilan
 * rowspan="2" style="color:inherit;background:;" |
 * style="text-align:center;" | 15th
 * rowspan="2" | NUP
 * Re-elected in 2010.
 * style="text-align:center;" | 16th
 * Re-elected in 2013.
 * rowspan="3" style="text-align:center;" | 18
 * style="color:inherit;background:;" |
 * rowspan="3" | Jose Antonio Sy-Alvarado
 * rowspan="3" | June 30, 2016
 * rowspan="3" | June 30, 2022
 * style="text-align:center;" | 17th
 * Liberal
 * Elected in 2016.
 * style="color:inherit;background:;" |
 * rowspan="2" style="text-align:center;" | 18th
 * NUP
 * rowspan="2" | Re-elected in 2019.
 * style="color:inherit;background:;" |
 * PDP–Laban
 * 19
 * style="color:inherit;background:;" |
 * Danilo A. Domingo
 * June 30, 2022
 * Incumbent
 * style="text-align:center;" | 19th
 * NUP
 * Elected in 2022.
 * }
 * rowspan="3" style="text-align:center;" | 18
 * style="color:inherit;background:;" |
 * rowspan="3" | Jose Antonio Sy-Alvarado
 * rowspan="3" | June 30, 2016
 * rowspan="3" | June 30, 2022
 * style="text-align:center;" | 17th
 * Liberal
 * Elected in 2016.
 * style="color:inherit;background:;" |
 * rowspan="2" style="text-align:center;" | 18th
 * NUP
 * rowspan="2" | Re-elected in 2019.
 * style="color:inherit;background:;" |
 * PDP–Laban
 * 19
 * style="color:inherit;background:;" |
 * Danilo A. Domingo
 * June 30, 2022
 * Incumbent
 * style="text-align:center;" | 19th
 * NUP
 * Elected in 2022.
 * }
 * NUP
 * Elected in 2022.
 * }