Davao de Oro's 1st congressional district

Davao de Oro's 1st congressional district is a congressional district for the House of Representatives of the Philippines in the province of Davao de Oro. It was created ahead of the 1998 Philippine House of Representatives elections by the same republic act of July 19, 1997 that established the province initially named Compostela Valley. The district encompasses most of the area of its namesake valley in the Mindanao Pacific Cordillera which were formerly within Davao del Norte's 1st district. It currently comprises the municipalities of Compostela, Maragusan, Monkayo, Montevista and New Bataan. It is currently represented in the 19th Congress by Maricar Zamora of the Lakas–CMD.

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;" |

Compostela Valley's 1st district for the House of Representatives of the Philippines

 * colspan="9" style="text-align:center;" | District created January 30, 1998. Redistricted from Davao del Norte's 1st district.
 * style="text-align:center;" | 1
 * style="color:inherit;background:;" |
 * Rogelio M. Sarmiento
 * June 30, 1998
 * June 30, 2001
 * style="text-align:center;" | 11th
 * LAMMP
 * Re-elected in 1998.
 * rowspan="7" style="text-align:center;" | 1998–2019 Compostela, Maragusan, Monkayo, Montevista, New Bataan
 * rowspan="3" style="text-align:center;" | 2
 * rowspan="3" style="color:inherit;background:;" |
 * rowspan="3" | Manuel E. Zamora
 * 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.
 * style="text-align:center;" | 14th
 * Re-elected in 2007.
 * rowspan="3" style="text-align:center;" | 3
 * rowspan="2" style="color:inherit;background:;" |
 * rowspan="3" | Maria Carmen Zamora-Apsay
 * 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
 * HNP
 * Re-elected in 2016.
 * colspan="9" style="text-align:center;" |
 * style="text-align:center;" | 16th
 * Re-elected in 2013.
 * style="color:inherit;background:;" |
 * style="text-align:center;" | 17th
 * HNP
 * Re-elected in 2016.
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |
 * colspan="9" style="text-align:center;" |

Davao de Oro's 1st district for the House of Representatives of the Philippines

 * style="text-align:center;" | (2)
 * style="color:inherit;background:;" |
 * Manuel E. Zamora
 * June 30, 2019
 * June 30, 2022
 * style="text-align:center;" | 18th
 * HNP
 * Elected in 2019.
 * rowspan=99 style="text-align:center;" | 2019–present Compostela, Maragusan, Monkayo, Montevista, New Bataan
 * style="text-align:center;" | (3)
 * style="color:inherit;background:;" |
 * Ma. Carmen Zamora-Apsay
 * June 30, 2022
 * Incumbent
 * style="text-align:center;" | 19th
 * Lakas (HNP)
 * Elected in 2022.
 * }
 * Elected in 2022.
 * }