Zamboanga del Sur's 1st congressional district

Population630,154 (2020)^[1]

Electorate415,735 (2022)^[2]

Zamboanga del Sur's 1st congressional district
Constituency for the House of Representatives of the Philippines
Boundary of Zamboanga del Sur's 1st congressional district in Zamboanga del Sur
Location of Zamboanga del Sur within the Philippines
Province	Zamboanga del Sur
Region	Zamboanga Peninsula
Population	630,154 (2020)^[1]
Electorate	415,735 (2022)^[2]
Major settlements	12 LGUs Cities Pagadian Municipalities Aurora Dumingag Josefina Labangan Mahayag Midsalip Molave Ramon Magsaysay Sominot Tambulig Tukuran
Area	2,180.49 km² (841.89 sq mi)
Current constituency
Created	1987
Representative	Joseph Yu
Political party	Lakas–CMD
Congressional bloc	Majority

Zamboanga del Sur's 1st congressional district is one of the two congressional districts of the Philippines in the province of Zamboanga del Sur. It has been represented in the House of Representatives since 1987.^[3] The district encompasses the northern half of the province consisting of its provincial capital city of Pagadian and the municipalities of Aurora, Dumingag, Josefina, Labangan, Mahayag, Midsalip, Molave, Ramon Magsaysay, Sominot, Tambulig and Tukuran.^[4] It is currently represented in the 20th Congress by Joseph Yu of the Lakas–CMD.^[5]

#	Image	Member	Term of office		Congress	Party	Electoral history	Constituent LGUs
#	Image	Member	Start	End	Congress	Party	Electoral history	Constituent LGUs
Zamboanga del Sur's 1st district for the House of Representatives of the Philippines
District created February 2, 1987 from Zamboanga del Sur's at-large district.^[4]
1		Isidoro E. Real Jr.	June 30, 1987	June 30, 1992	8th	PDP–Laban	Elected in 1987.	1987–1992 Aurora, Don Mariano Marcos, Dumingag, Josefina, Labangan, Mahayag, Midsalip, Molave, Pagadian, Ramon Magsaysay, Tambulig, Tukuran
2		Alejandro S. Urro	June 30, 1992	June 30, 2001	9th	Lakas	Elected in 1992.	1992–present Aurora, Dumingag, Josefina, Labangan, Mahayag, Midsalip, Molave, Pagadian, Ramon Magsaysay, Sominot, Tambulig, Tukuran
					10th	Lakas	Re-elected in 1995.
					11th	LDP	Re-elected in 1998.
(1)		Isidoro E. Real Jr.	June 30, 2001	June 30, 2007	12th	Lakas	Elected in 2001.
(1)		Isidoro E. Real Jr.	June 30, 2001	June 30, 2007	13th	Lakas	Re-elected in 2004.
3		Victor J. Yu	June 30, 2007	June 30, 2016	14th	NPC	Elected in 2007.
					15th		Re-elected in 2010.
					16th		Re-elected in 2013.
4		Divina Grace C. Yu	June 30, 2016	June 30, 2025	17th	NPC	Elected in 2016.
					18th	PDP–Laban	Re-elected in 2019.
					19th	Lakas	Re-elected in 2022.
5		Joseph Yu	June 30, 2025	Incumbent	20th	Lakas	Elected in 2025.

Election results

Term-limited incumbent Divina Grace Yu of Lakas–CMD ran for governor of Zamboanga del Sur.^[6] She was previously affiliated with PDP–Laban.

Lakas–CMD nominated Yu's son, Joseph Yu, who won the election against Labangan mayor Eddie Relacion (Nationalist People's Coalition).


Candidate		Party	Votes	%
	Joseph Yu	Lakas–CMD	190,907	58.32
	Eddie Relacion	Nationalist People's Coalition	136,415	41.68
Total			327,322	100.00

Valid votes			327,322	89.88
Invalid/blank votes			36,874	10.12
Total votes			364,196	100.00
Registered voters/turnout			429,807	84.73
	Lakas–CMD hold
Source: Commission on Elections

Incumbent Divina Grace Yu of PDP–Laban ran for a third term.^[7]


Candidate		Party	Votes	%
	Divina Grace Yu (incumbent)	PDP–Laban	166,432	52.89
	Edmario Revelo	People's Reform Party	131,421	41.77
	Archie Yongco	Nationalist People's Coalition	15,581	4.95
	Dell Ceniza Supapo	Reform Party	1,223	0.39
Total			314,657	100.00

Total votes			353,711	–
Registered voters/turnout			415,735	85.08
	PDP–Laban hold
Source: Commission on Elections^[8]

Divina Grace Yu was the Incumbent.

2019 Philippine House of Representatives election at Zamboanga del Sur's 1st District
Party		Candidate	Votes
	PDP–Laban	Divina Grace Yu	164,990
	Nacionalista	Marlyn Revelo	119,141
Total votes			284,131
	PDP–Laban gain from Nacionalista

Victor Yu is the incumbent but ineligible for reelection. His party nominated his wife, Divina Grace Yu.

2016 Philippine House of Representatives election at Zamboanga del Sur's 1st District
Party		Candidate	Votes	%
	NPC	Divina Grace Yu	180,705	83.004
	NUP	Alex Acain	37,000	16.995
Total votes			217,705
	NPC hold

Victor Yu was the incumbent.

Victor Yu is the incumbent.

Philippine House of Representatives election at Zamboanga del Sur's 1st district
Party		Candidate	Votes	%
	NPC	Victor Yu	162,787	75.22
	Liberal	Romeo Vera Cruz	53,634	24.78
Valid ballots			216,421	90.52
Invalid or blank votes			22,654	9.48
Total votes			239,075	100.00
	NPC hold

v t e Congressional districts for the House of Representatives of the Philippines in the Zamboanga Peninsula
Basilan	At-large
Mindanao and Sulu	At-large*
Region IX	At-large*
Sulu	At-large* 1st 2nd
Zamboanga	At-large*
Zamboanga City	At-large* 1st 2nd
Zamboanga del Norte	At-large* 1st 2nd 3rd
Zamboanga del Sur	At-large* 1st 2nd 3rd*
Zamboanga Sibugay	At-large* 1st 2nd
Districts marked with asterisks (*) are defunct. Districts per region I II III IV-A V VI VII VIII IX X XI XII XIII BARMM CAR Mimaropa NCR NIR