[4] Moreover, Fernando's running mate, 1st District Board Member Alex Castro won 755,785 votes to Alvarado's running mate, former rival-tuned ally, former governor Jonjon Mendoza won 626,656 votes.

[5] This roughly translates to 2,007,523 registered voters[6] or 54.13% of the population is eligible to vote in this election.

Bulacan ranks fifth nationwide behind Laguna and Pangasinan while ahead of Negros Occidental and Batangas.

He will be up against incumbent 4th District board member Alex Castro and former Meycauayan City vice mayor Salvador Violago.

[8] Incumbent Representative Jose Antonio Sy-Alvarado is running for his third and final term against former Malolos mayor Danilo Domingo.

Incumbent Gavini "Apol" Pancho is term-limited, and his party nominated his sister, Tina for his seat.

This is the first time the district will be holding an election since the redistricting happened, with incumbent Guiguinto mayor Ambrosio "Boy" Cruz running for the seat against Atty.

This is the first time the district will be holding an election since the redistricting happened, with incumbent Norzagaray mayor Fred Germar running for the seat against former DPWH undersecretary Salvador Pleyto, former La Salle Lady Spiker Kaye Martinez Daly, and three other candidates.

Incumbent Florida Robes is running for her third and final term against former Mayor Reynaldo San Pedro.

Incumbent Board Member Allan Ray Baluyut is term-limited; his son, Allen will be running for his seat.

Incumbent Mayor Jessie de Jesus is term-limited, his brother, Municipal Administrator James, will run in his place.

Incumbent Mayor Amboy Manlapaz is term-limited; his wife Baby will run in his place.

Among her opponents is the incumbent Vice Mayor Rec Candido and former Councilor Puroy Valenzuela.

Vice Mayoralty race will now be disputed by both incumbent Councilors Madette Quimpo and Buko dela Cruz.

Incumbent Mayor Goto Violago is term-limited; his son, former Provincial Board Member Cholo, will be running in his place unopposed.

Incumbent Vice Mayor Edison Veneracion is term-limited; his wife Lyn will be running in his place unopposed.

Incumbent City Mayor Linabelle Villarica will run for a seat as Fourth District Representative; her husband, incumbent Fourth District Representative Henry Villarica will be running in her place as City Mayor, against six other candidates.

Incumbent Vice Mayor Jojie Violago will be running unopposed for the second straight election.

[15] Incumbent Mayor Boy Cruz is term-limited and is running as Representative for the newly created Fifth District of Bulacan; his daughter Agay will run in his place and will be up against incumbent Vice Mayor JJ Santos.

Incumbent Mayor Fred Germar is term-limited and is running as Representative for the newly created Sixth District of Bulacan; his wife Merlyn will run in his place and will be up against former Acting Mayor Ade Cristobal.