Zamboanga City's at-large congressional district

Zamboanga City's at-large congressional district is an obsolete congressional district that encompassed the entire Zamboanga City prior to its 2004 reapportionment that took effect in 2007. It existed from 1984 to 2007, when Zamboanga elected a representative city-wide at-large to the Batasang Pambansa and to the restored House of Representatives. Before 1984 when it was granted its own seat in the regular Batasan assembly as a highly-urbanized city, Zamboanga was represented as part of the multi-member Region IX's at-large assembly district for the Interim Batasang Pambansa and was also earlier included in Zamboanga del Sur's at-large congressional district for the Third Philippine Republic congresses. It was last represented by Erico Basilio Fabian of the Laban ng Demokratikong Pilipino (LDP).

Representation history
{| class=wikitable ! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | Batasang Pambansa ! rowspan="2" | Party ! rowspan="2" | Electoral history !Start!!End
 * colspan="8" style="text-align:center;" |
 * colspan="8" style="text-align:center;" |

Zamboanga City's at-large district for the Regular Batasang Pambansa
! rowspan="2" | # ! rowspan="2" colspan=2 | Member ! colspan=2 | Term of office ! rowspan="2" | Congress ! rowspan="2" | Party ! rowspan="2" | Electoral history !Start!!End
 * colspan="8" style="text-align:center;" | District created February 1, 1984 from Region IX's at-large district.
 * style="text-align:center;" | 1
 * style="color:inherit;background:;" |
 * Cesar Climaco
 * July 23, 1984
 * November 14, 1984
 * style="text-align:center;" | 2nd
 * UNIDO (CCA)
 * Elected in 1984. Did not formally assume office. Died.
 * UNIDO (CCA)
 * Elected in 1984. Did not formally assume office. Died.
 * colspan="8" style="text-align:center;" |
 * colspan="8" style="text-align:center;" |

Zamboanga City's at-large district for the House of Representatives of the Philippines

 * colspan="8" style="text-align:center;" | District re-created February 2, 1987.
 * rowspan="3" style="text-align:center;" | 2
 * style="color:inherit;background:;" |
 * rowspan="3" | Maria Clara Lobregat
 * rowspan="3" | June 30, 1987
 * rowspan="3" | June 30, 1998
 * style="text-align:center;" | 8th
 * Independent
 * Elected in 1987.
 * rowspan="2" style="color:inherit;background:;" |
 * style="text-align:center;" | 9th
 * rowspan="2" | LDP
 * Re-elected in 1992.
 * style="text-align:center;" | 10th
 * Re-elected in 1995.
 * rowspan="2" style="text-align:center;" | 3
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="2" | Celso Lobregat
 * rowspan="2" | June 30, 1998
 * rowspan="2" | June 30, 2004
 * style="text-align:center;" | 11th
 * rowspan="2" | LDP
 * Elected in 1998.
 * style="text-align:center;" | 12th
 * Re-elected in 2001.
 * style="text-align:center;" | 4
 * style="color:inherit;background:;" |
 * Erico Basilio Fabian
 * June 30, 2004
 * June 30, 2007
 * style="text-align:center;" | 13th
 * LDP
 * Elected in 2004. Redistricted to the 2nd district.
 * colspan="8" style="text-align:center;" | District dissolved into Zamboanga City's 1st and 2nd districts.
 * }
 * June 30, 2004
 * June 30, 2007
 * style="text-align:center;" | 13th
 * LDP
 * Elected in 2004. Redistricted to the 2nd district.
 * colspan="8" style="text-align:center;" | District dissolved into Zamboanga City's 1st and 2nd districts.
 * }
 * }