Legislative districts of Ilocos Sur

The legislative districts of Ilocos Sur are the representations of the province of Ilocos Sur in the various national legislatures of the Philippines. The province is currently represented in the lower house of the Congress of the Philippines through its first and second congressional districts.

Abra last formed part of the province's representation in 1917.

The first district of Ilocos Sur is among the original representative districts from 1907 which has never changed in territorial coverage, along with Albay's first, Ilocos Norte's first and second, and Iloilo's first districts.

History

Ilocos Sur, which at the time included the sub-province of Abra, was initially divided in 1907 into three representative districts. Abra was last represented as part of the province's now-defunct third district in 1917, after its re-establishment as a regular province on March 10, 1917, by virtue of Act No. 2683 warranted its separate representation, thereby reducing Ilocos Sur to two districts.^[1]

When the Philippine Commission detached Tagudin from Ilocos Sur and made it the capital of the sub-province of Amburayan in Mountain Province on May 15, 1907, by virtue of Act No. 1646, the town's residents were still allowed to vote as part of the Ilocos Sur's second district.^[2] This arrangement was terminated on August 10, 1916, under Act No. 2657 (the Administrative Code of the Philippine Islands), which removed the town from the second district.^[3]

The enactment of Act No. 2877 in 1920 reorganized northwestern Luzon, by abolishing the sub-province of Amburayan in the undivided Mountain Province and annexing several of its municipal entities—Alilem, Sigay, Sugpon, Suyo and its capital Tagudin—to Ilocos Sur. The Lepanto sub-province townships of Angaki, Concepcion, San Emilio and its capital Cervantes were also placed under the jurisdiction of Ilocos Sur. However residents of these areas remained represented by the Mountain Province's appointed assembly members until they were finally extended the right to vote in assembly district elections in 1935, after the passage of Act No. 4203 placed them in the second district of Ilocos Sur.^[4]

Ilocos Sur was represented in the Interim Batasang Pambansa as part of Region I from 1978 to 1984, and elected two representatives to the Regular Batasang Pambansa in 1984. The province retained its two congressional districts under the new Constitution^[5] which was proclaimed on February 11, 1987, and elected members to the restored House of Representatives starting that same year.

1st District

Towns of the first legislative district of Ilocos Sur

• City: Vigan (became city 2001)
• Municipalities: Cabugao, Magsingal, San Juan (Lapog), Santa Catalina, Santo Domingo, Sinait, Bantay (re-established 1911), Caoayan (re-established 1911), San Vicente (re-established 1911), San Ildefonso (re-established 1919)
• Population (2020): 298,333

Period	Representative[6]
1st Philippine Legislature 1907–1909	Vicente S. Encarnacion[a]
2nd Philippine Legislature 1909–1912
	Alberto Reyes[b]
3rd Philippine Legislature 1912–1916
4th Philippine Legislature 1916–1919
5th Philippine Legislature 1919–1922	Elpidio R. Quirino
6th Philippine Legislature 1922–1925	Vicente S. Pablo
7th Philippine Legislature 1925–1928	Simeon Ramos
8th Philippine Legislature 1928–1931	Benito Soliven
9th Philippine Legislature 1931–1934	Pedro S. Reyes
10th Philippine Legislature 1934–1935
1st National Assembly 1935–1938	Benito Soliven
2nd National Assembly 1938–1941
1st Commonwealth Congress 1945	Jesus Serrano
1st Congress 1946–1949	Floro Crisologo
2nd Congress 1949–1953
3rd Congress 1953–1957
4th Congress 1957–1961	Faustino B. Tobia
5th Congress 1961–1965	Floro Crisologo[c]
6th Congress 1965–1969
7th Congress 1969–1972
	vacant
8th Congress 1987–1992	Luis C. Singson
9th Congress 1992–1995	Mariano M. Tajon
10th Congress 1995–1998
11th Congress 1998–2001	Salacnib F. Baterina
12th Congress 2001–2004
13th Congress 2004–2007
14th Congress 2007–2010	Ronald V. Singson[d]
15th Congress 2010–2013
	Ryan Luis V. Singson[e]
16th Congress 2013–2016	Ronald V. Singson
17th Congress 2016–2019	Deogracias Victor B. Savellano
18th Congress 2019–2022
19th Congress 2022–2025	Ronald V. Singson

Notes

1. Appointed to the Philippine Commission in 1913.^[6]
2. Assumed office after winning special election held on October 13, 1913, to fill vacated seat.^[6]
3. Assassinated on October 18, 1970; seat remained vacant until the end of the 7th Congress.^[6]
4. Resigned on March 1, 2011, after being convicted by the Hong Kong High Court for drug possession.^[6]
5. Elected in a special election held on May 28, 2011; took oath of office on May 30, 2011, and served for the remainder of the 15th Congress.^[6]

2nd District

Towns of the second legislative district of Ilocos Sur

• City: Candon (became city 2001)
• Municipalities: Banayoyo, Burgos, Galimuyod, Lidlidda, Nagbukel, Narvacan, Salcedo (Baugen), San Esteban, Santa, Santa Cruz, Santa Lucia, Santa Maria, Santiago, Alilem,^[a] Cervantes,^[a] Gregorio del Pilar (Concepcion),^[a] Quirino (Angaki),^[a] San Emilio,^[a] Sigay,^[a] Sugpon,^[a] Suyo,^[a] Tagudin^[a]
• Population (2020): 407,676

Period	Representative[6]
1st National Assembly 1935–1938	Sixto Brillantes
2nd National Assembly 1938–1941	Prospero Sanidad
1st Commonwealth Congress 1945
1st Congress 1946–1949	Fidel Villanueva
2nd Congress 1949–1953	Ricardo Gacula
3rd Congress 1953–1957
4th Congress 1957–1961	Godofredo S. Reyes[b]
5th Congress 1961–1965	Pablo Sanidad[c]
6th Congress 1965–1969
7th Congress 1969–1972	Lucas V. Cauton
8th Congress 1987–1992	Eric D. Singson
9th Congress 1992–1995
10th Congress 1995–1998
11th Congress 1998–2001	Grace G. Singson
12th Congress 2001–2004	Eric D. Singson
13th Congress 2004–2007
14th Congress 2007–2010
15th Congress 2010–2013	Eric G. Singson, Jr.
16th Congress 2013–2016	Eric D. Singson
17th Congress 2016–2019
18th Congress 2019–2022	Kristine Singson-Meehan
19th Congress 2022–2025

Notes

1. Annexed to Ilocos Sur on February 4, 1920, but remained represented as part of the representation of Mountain Province until 1935. Extended the right to elect the representative of the second district of Ilocos Sur in 1935.
2. Removed from list of members of the House of Representatives on January 25, 1960, after running in the November 10, 1959, election for governor of Ilocos Sur.^[6]
3. Only took oath of office for second term on January 21, 1969,^[6] following a long legal battle over results of election contested by retired Brig. Gen. Lucas V. Cauton.^[7]

1907–1916

• Municipalities: Candon, Narvacan, Santa Cruz, Santa Lucia, Santa Maria, Santiago, Tagudin,^[a] San Esteban (re-established 1911)

Period	Representative[6]
1st Philippine Legislature 1907–1909	Maximino Mina
2nd Philippine Legislature 1909–1912	Jose Ma. del Valle
3rd Philippine Legislature 1912–1916	Gregorio Talavera

Notes

1. Annexed to Amburayan sub-province, Mountain Province May 15, 1907, but remained represented as part of the first district of Ilocos Sur until the arrangement was terminated on August 10, 1916, by virtue of Act No. 2657.

1916–1919

• Municipalities: Candon, Narvacan, San Esteban, Santa Cruz, Santa Lucia, Santa Maria, Santiago

Period	Representative[6]
4th Philippine Legislature 1916–1919	Ponciano Morales

1919–1935

• Municipalities: Candon, Narvacan, San Esteban, Santa, Santa Cruz, Santa Lucia, Santa Maria, Santiago, Banayoyo (established 1919), Lidlidda (established 1919), Nagbuquel (established 1919), Burgos (Nueva Coveta) (established 1920), Bauguen (established 1922), Galimuyod (established 1922)

Period	Representative[6]
5th Philippine Legislature 1919–1922	Ponciano Morales
6th Philippine Legislature 1922–1925	Lupo Biteng
7th Philippine Legislature 1925–1928
8th Philippine Legislature 1928–1931	Fidel Villanueva
9th Philippine Legislature 1931–1934
10th Philippine Legislature 1934–1935	Prospero Sanidad

3rd District (defunct)

See also: Legislative district of Abra

• Municipalities: Bangued, Bucay, Dolores, La Paz, Pidigan, Pilar, San Quintin, Santa, Tayum

Period	Representative[6]
1st Philippine Legislature 1907–1909	Juan Villamor
2nd Philippine Legislature 1909–1912
3rd Philippine Legislature 1912–1916	Julio Borbon
4th Philippine Legislature 1916–1917	Eustaquio Purungganan

At-Large (defunct)

1943–1944

Period	Representatives[6]
National Assembly 1943–1944	Fidel Villanueva[8]
	Alejandro Quirologico (ex officio)[8]

1984–1986

Period	Representatives[6]
Regular Batasang Pambansa 1984–1986	Salacnib F. Baterina
	Eric D. Singson

See also

• Legislative district of Abra
• Legislative district of Mountain Province