2019 Philippine House of Representatives elections

The 2019 elections for the House of Representatives of the Philippines will be the 35th lower house elections in the Philippines, and will held on May 13, 2019. All seats in the House of Representatives of the Philippines will be contested. The winners will serve in the 18th Congress of the Philippines from June 30, 2019 to June 30, 2022.
The Philippines uses parallel voting in its lower house elections. There are 297 seats in the House; 238 of these are district representatives, and 59 are party-list representatives. The law mandates that there should be 1 party-list representative for every 4 district representatives. District representatives are elected under the plurality voting system from single-member districts. Party-list representatives are elected via the nationwide vote with a 2% "soft" election threshold, with a 3-seat cap. The party in the party-list election with the most number of votes usually wins 3 seats, the other parties with more than 2% of the vote 2 seats, and the parties with less than 2% of the vote winning a seat each if the 20% quota isn't met.
==District changes==
Reapportioning (redistricting) the number of seats is either via national reapportionment after the release of every census, or via piecemeal redistricting for every province or city. National reapportionment has not happened since the 1987 constitution took effect, and aside from piecemeal redistricting, the apportionment was based on the ordinance from the constitution, which was in turn based from the 1980 census.
These are House (HB) and Senate (SB) Bills that pertains to redistricting:
Bill No. 	District(s) 	Current 	Proposed 	Notes 	Status
HB 93 	Maguindanao–1st 	1 	2 	Separation of a Cotabato City to become a lone district. 	Pending at the committee level.
HB 147 	Bacolod 	1 	2 	Bacolod to be split into two districts. 	Pending at the committee level.
HB 514 	Surigao del Norte–2nd	1 	2 	Surigao del Norte–2nd to be split into two districts. 	Pending at the committee level.
HB 990 	Laguna–2nd 	1 	2 	Separation of a Calamba to become a lone district. 	Approved on third reading; transmitted to the Senate.
HB 1219, 5585 	Iloilo City 	1 	2 	Iloilo City to be split into two districts. 	Approved on third reading; transmitted to the Senate.
HB 1913 	Nueva Ecija–2nd 	1 	2 	Nueva Ecija–2nd to be split into two districts. 	Pending at the committee level.
HB 2341 	Cavite 	7 	9 	Reapportioning of Cavite's 5th, 6th and 7th districts from three districts to five.	Approved on third reading; transmitted to the Senate.
HB 2528, 6631 	Southern Leyte 	1 	2 	Southern Leyte to be split into two districts. 	Approved on third reading; transmitted to the Senate.
HB 2528 	San Jose del Monte 	1 	2 	San Jose del Monte to be split into two districts. 	Pending at the committee level.
HB 2341 	Quezon 	4 	7 	Reapportioning of Quezon's districts from four districts to seven. 	Pending at the committee level.
HB 4417, 4523 	Cebu–6th 	1 	2 	Separation of a Mandaue to become a lone district. 	Pending at the committee level.
HB 4670 	Aklan 	1 	2 	Aklan to be split into two districts. 	Pending at the committee level.
HB 4678, 5162 	South Cotabato 	1 	2 	Separation of a General Santos to become a lone district. 	Approved on third reading; transmitted to the Senate.
HB 4692 	Isabela 	4 	6 	Reapportioning of Isabela's districts from four districts to six. 	Pending at the committee level.
HB 5186 	Maguindanao 	2 	3 	Reapportioning of Maguindanao's districts from four districts to six. 	Pending at the committee level.
HB 5367 	Cavite 	7 	8 	Reapportioning of Cavite's 6th and 7th districts from two districts to three. 	Approved on third reading; transmitted to the Senate.
HB 6746 	Caloocan–1st 	1 	2 	Caloocan–1st to be split into two districts. 	Pending at the committee level.
SB 1368 	Iloilo City 	1 	2 	Iloilo City to be split into two districts. 	Pending at the committee level.
SB 1487 	South Cotabato 	1 	2 	Separation of a General Santos to become a lone district. 	Pending at the committee level.
Approve districts	0 	Potential new districts	Potential new districts	Potential new districts 	21
As there are 238 legislative districts of the Philippines out of the current 297 seats, and that party-list representatives should comprise 20% of seats, once two districts are approved, another party list seat will be created as well, with another party-list seat created from every 5th district that is created.
==References==