San Ildefonso, Ilocos Sur

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search
San Ildefonso
Municipality of San Ildefonso
Map of Ilocos Sur with San Ildefonso highlighted
Map of Ilocos Sur with San Ildefonso highlighted
San Ildefonso is located in Philippines
San Ildefonso
San Ildefonso
Location within the Philippines
Coordinates: 17°37′N 120°24′E / 17.62°N 120.4°E / 17.62; 120.4Coordinates: 17°37′N 120°24′E / 17.62°N 120.4°E / 17.62; 120.4
Country Philippines
RegionIlocos Region (Region I)
ProvinceIlocos Sur
District1st District
FoundedMarch 1625
Barangays15 (see Barangays)
 • TypeSangguniang Bayan
 • MayorMark A. Purisima
 • Electorate4,992 voters (2016)
 • Total11.35 km2 (4.38 sq mi)
(2015 census)[3]
 • Total7,787
 • Density690/km2 (1,800/sq mi)
Time zoneUTC+8 (PST)
ZIP code
IDD:area code+63 (0)77
Climate typeTropical monsoon climate
Income class5th municipal income class
Revenue (₱)73,904,829.68 (2016)
Native languagesIlocano

San Ildefonso, officially the Municipality of San Ildefonso, is a 5th class municipality in the province of Ilocos Sur, Philippines. According to the 2015 census, it has a population of 7,787 people.[3]

The town is rich in rice, corn, sugarcane, malunggay, katuday & fruit-bearing trees such as star apple, chico, mango, camachile & atis. Its main product is basi, a wine made from fermented sugarcane juice; as well as cane vinegar. They also make nutritious ice cream made up of vegetables in Barangay Bungro, and is being popularized by the town's local government.


San Ildefonso is 411 kilometres (255 mi) from Metro Manila and 6 kilometres (3.7 mi) from Vigan City, the provincial capital.


San Ildefonso is politically subdivided into 15 barangays.

  • Arnap
  • Bahet
  • Belen
  • Bungro
  • Busiing Sur
  • Busiing Norte
  • Dongalo
  • Gongogong
  • Iboy
  • Kinamantirisan
  • Otol-Patac
  • Poblacion East
  • Poblacion West
  • Sagneb
  • Sagsagat


San Ildefonso, like many other places in the provinces at the beginning of the Spanish Regime, did not have a name. Sometime in 1625, its inhabitants decided to give it a name, but nothing came out after more than five hours of discussions. So while thinking of a name, they decided to go fishing for a week. And while preparing to go fishing, they saw a box floating not far from shore. Wading to reach the box and carrying it ashore, they opened the box to find a statue of Saint Ildephonsus. The young women of the place carried the statue to the center of the village, where it was enshrined in a small hut for many years. He became the patron saint of the municipality, and his name was decided to become the name of the fledgling municipality.

San Ildefonso was a former rancheria of Bantay before it became a municipality, but because of its size it was annexed to Santo Domingo as a barrio. In 1921, Assemblyman (and future Philippine president) Elpidio Quirino worked to convert San Ildefonso into a municipality again.


Population census of San Ildefonso
YearPop.±% p.a.
1903 2,137—    
1939 2,227+0.11%
1948 2,034−1.00%
1960 2,601+2.07%
1970 3,400+2.71%
1975 3,249−0.91%
1980 3,640+2.30%
1990 4,528+2.21%
1995 5,232+2.74%
2000 5,584+1.41%
2007 6,670+2.48%
2010 7,075+2.17%
2015 7,787+1.84%
Source: Philippine Statistics Authority[3][4][5][6]

In the 2015 census, the population of San Ildefonso, Ilocos Sur, was 7,787 people,[3] with a density of 690 inhabitants per square kilometre or 1,800 inhabitants per square mile.

Local government[edit]

Municipal Officials Year 2000-2013:

  • Mayor: Mark Anthony A. Purisima
  • Vice Mayor: RoBert Castillo
  • Sanguniang Bayan Members:
    • Rosario Castillo
    • Quirino Dela Cruz
    • Mely Dela Cruz
    • Jay-ar Riego
    • Renato Pecho
    • Romeo Palomares
    • Minda Padua
    • Maraino Pamo Jr.
  • ABC Pres. Efren Pula

Educational institutions[edit]

  • Belen National High School
  • San Ildefonso Central School
  • Bungro Elementary School
  • Sagsagat Elementary School
  • Busiing Community School
  • Philippine Science High School [Ilocos Region Campus] (PSHS-IRC)
  • Day Care Centers (different barangays)

200th Anniversary of Basi Revolt[edit]

On September 28, 2007, San Ildefonso officials (Governor Deogracias Victor Savellano and Rep. Ronald Singson) commemorated the Basi Revolt. Recently, the Sangguniang Bayan of San Ildefonso approved a resolution declaring September 16 as a non-working holiday and named the old road in Barangay Gongogong as Ambaristo street in honor of Pedro Ambaristo, leader of the Basi Revolt. Mayor Christian Purisima enrolled basi as their entry into the “One Town; One Product” (OTOP) program of Governor Savellano.[7]


  1. ^ "Municipality". Quezon City, Philippines: Department of the Interior and Local Government. Retrieved 31 May 2013.
  2. ^ "Province: Ilocos Sur". PSGC Interactive. Quezon City, Philippines: Philippine Statistics Authority. Retrieved 12 November 2016.
  3. ^ a b c d Census of Population (2015). "Region I (Ilocos Region)". Total Population by Province, City, Municipality and Barangay. PSA. Retrieved 20 June 2016.
  4. ^ Census of Population and Housing (2010). "Region I (Ilocos Region)". Total Population by Province, City, Municipality and Barangay. NSO. Retrieved 29 June 2016.
  5. ^ Censuses of Population (1903–2007). "Region I (Ilocos Region)". Table 1. Population Enumerated in Various Censuses by Province/Highly Urbanized City: 1903 to 2007. NSO.
  6. ^ "Province of Ilocos Sur". Municipality Population Data. Local Water Utilities Administration Research Division. Retrieved 17 December 2016.
  7. ^ Abs-Cbn Interactive, Ilocanos mark 200 yrs. of Basi Revolt[permanent dead link]

External links[edit]