Zambales's 1st congressional district
Legislative district of the Philippines
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Zambales's 1st congressional district is one of the two congressional districts of the Philippines in the province of Zambales. It has been represented in the House of Representatives since 1987.[3] The district consists of the city of Olongapo and adjacent municipalities in the southernmost part of Zambales, namely Castillejos, San Marcelino and Subic.[4] It is currently represented in the 20th Congress by Jefferson F. Khonghun of the Sulong Zambales Party (SZP) and Lakas–CMD (Lakas).[5]
| Zambales's 1st congressional district | |
|---|---|
| Constituency for the House of Representatives of the Philippines | |
Location of Zambales within the Philippines | |
| Province | Zambales |
| Region | Central Luzon |
| Population | 436,317 (2015)[1] |
| Electorate | 253,317 (2025)[2] |
| Major settlements | 4 LGUs
|
| Area | 982.01 km2 (379.16 sq mi) |
| Current constituency | |
| Created | 1987 |
| Representative | Jefferson F. Khonghun |
| Political party | SZP Lakas |
| Congressional bloc | Majority |
Representation history
| # | Image | Member | Term of office | Congress | Party | Electoral history | Constituent LGUs | ||
|---|---|---|---|---|---|---|---|---|---|
| Start | End | ||||||||
Zambales's 1st district for the House of Representatives of the Philippines | |||||||||
| District created February 2, 1987 from Zambales's at-large district.[4] | |||||||||
| 1 | Katherine H. Gordon | June 30, 1987 | June 30, 1995 | 8th | Nacionalista | Elected in 1987. | 1987–present Castillejos, Olongapo, San Marcelino, Subic | ||
| 9th | NPC (Nacionalista) | Re-elected in 1992. | |||||||
| 2 | James J. Gordon Jr. | June 30, 1995 | June 30, 2004 | 10th | Nacionalista | Elected in 1995. | |||
| 11th | Lakas | Re-elected in 1998. | |||||||
| 12th | Re-elected in 2001. | ||||||||
| 3 | .jpg) |
Mitos Magsaysay | June 30, 2004 | June 30, 2013 | 13th | Independent | Elected in 2004. | ||
| 14th | Lakas | Re-elected in 2007. | |||||||
| 15th | UNA | Re-elected in 2010. | |||||||
| 4 | Jeffrey D. Khonghun | June 30, 2013 | June 30, 2022 | 16th | NPC | Elected in 2013. | |||
| 17th | Nacionalista | Re-elected in 2016. | |||||||
| 18th | Re-elected in 2019. | ||||||||
| 5 | .jpg) |
Jay Khonghun | June 30, 2022 | Incumbent | 19th | Lakas (SZP) |
Elected in 2022. | ||
| 20th | Re-elected in 2025. | ||||||||
Election results
2025
| Candidate | Party | Votes | % | |
|---|---|---|---|---|
| Jay Khonghun (incumbent) | Lakas–CMD | 160,887 | 100.00 | |
| Total | 160,887 | 100.00 | ||
| Valid votes | 160,887 | 80.79 | ||
| Invalid/blank votes | 38,250 | 19.21 | ||
| Total votes | 199,137 | 100.00 | ||
| Registered voters/turnout | 253,317 | 78.61 | ||
| Lakas–CMD hold | ||||
| Source: Commission on Elections | ||||
2022
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Nacionalista | Jefferson Khonghun | 156,561 | 79.54 | |
| PDP–Laban | Mitos Magsaysay | 40,262 | 20.46 | |
| Total votes | 196,823 | 100.00 | ||
| Nacionalista hold | ||||
2019
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Nacionalista | Jeffrey Khonghun | 115,172 | 70.37 | |
| PFP | Mitos Magsaysay | 47,125 | 28.79 | |
| Independent | Allan Avila | 1,360 | 0.83 | |
| Total votes | 163,557 | 100.00 | ||
| Nacionalista hold | ||||
2016
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Liberal | Jeffrey Khonghun | 146,293 | 92.54 | |
| PDP–Laban | Michael Macapagal | 11,799 | 7.46 | |
| Total votes | 158,092 | 100.00 | ||
| Liberal hold | ||||
2013
2010
| Party | Candidate | Votes | % | |
|---|---|---|---|---|
| Lakas | Mitos Magsaysay | 89,754 | 61.41 | |
| Bagumbayan | Anne Marie Gordon | 56,412 | 38.59 | |
| Total votes | 146,166 | 100.00 | ||
| Lakas hold | ||||