Bulacan's 4th congressional district

Bulacan's 4th 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 since 1987. The district consists of the city of Meycauayan and adjacent municipalities in southern Bulacan, namely Marilao and Obando. It is currently represented in the 19th Congress by Linabelle Villarica of the Partido Federal ng Pilipinas (PFP).

The city of San Jose del Monte and the municipality of Santa Maria were once part of this district. San Jose del Monte gained separate representation effective 2004, while Santa Maria was reassigned to the sixth district effective 2022.

Representation history
{| class=wikitable ! 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;" |
 * colspan="9" style="text-align:center;" |

Bulacan's 4th district for the House of Representatives of the Philippines

 * colspan="9" style="text-align:center;" | District created February 2, 1987.
 * style="text-align:center;" | 1
 * style="color:inherit;background:;" |
 * Rogaciano M. Mercado
 * June 30, 1987
 * November 13, 1989
 * style="text-align:center;" | 8th
 * Lakas ng Bansa
 * Elected in 1987. Died.
 * rowspan="5" style="text-align:center;" | 1987–2004 Marilao, Meycauayan, Obando, San Jose del Monte, Santa Maria
 * rowspan="3" style="text-align:center;" | 2
 * rowspan="3" style="color:inherit;background:;" |
 * rowspan="3" | Angelito M. Sarmiento
 * rowspan="3" | June 30, 1992
 * rowspan="3" | March 26, 2001
 * style="text-align:center;" | 9th
 * rowspan="3" | Lakas
 * Elected in 1992.
 * style="text-align:center;" | 10th
 * Re-elected in 1995.
 * style="text-align:center;" | 11th
 * Re-elected in 1998. Resigned on appointment as Presidential Adviser on Agricultural Modernization.
 * rowspan="3" style="text-align:center;" | 3
 * rowspan="3" style="color:inherit;background:;" |
 * rowspan="3" | Reylina G. Nicolas
 * rowspan="3" | June 30, 2001
 * rowspan="3" | June 30, 2010
 * style="text-align:center;" | 12th
 * rowspan="3" | Lakas
 * Elected in 2001.
 * style="text-align:center;" | 13th
 * Re-elected in 2004.
 * rowspan="6" style="text-align:center;" | 2004–2022 Marilao, Meycauayan, Obando, Santa Maria
 * style="text-align:center;" | 14th
 * Re-elected in 2007.
 * rowspan="3" style="text-align:center;" | 4
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="3" | Linabelle R. Villarica
 * rowspan="3" | June 30, 2010
 * rowspan="3" | June 30, 2019
 * style="text-align:center;" | 15th
 * rowspan="2" | Liberal
 * Elected in 2010.
 * style="text-align:center;" | 16th
 * Re-elected in 2013.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 17th
 * PDP–Laban
 * Re-elected in 2016.
 * style="text-align:center;" | 5
 * style="color:inherit;background:;" |
 * Henry R. Villarica
 * June 30, 2019
 * June 30, 2022
 * style="text-align:center;" | 18th
 * PDP–Laban
 * Elected in 2019.
 * style="text-align:center;" rowspan="2" | (4)
 * style=background:;" |
 * rowspan="2" | Linabelle R. Villarica
 * rowspan="2" | June 30, 2022
 * rowspan="2" | Incumbent
 * style="text-align:center;" rowspan="2" | 19th
 * PDP–Laban
 * rowspan="2" | Elected in 2022.
 * rowspan="2" style="text-align:center;" | 2022–present Marilao, Meycauayan, Obando
 * style=background:;" |
 * PFP
 * }
 * style="text-align:center;" rowspan="2" | (4)
 * style=background:;" |
 * rowspan="2" | Linabelle R. Villarica
 * rowspan="2" | June 30, 2022
 * rowspan="2" | Incumbent
 * style="text-align:center;" rowspan="2" | 19th
 * PDP–Laban
 * rowspan="2" | Elected in 2022.
 * rowspan="2" style="text-align:center;" | 2022–present Marilao, Meycauayan, Obando
 * style=background:;" |
 * PFP
 * }
 * PFP
 * }