San Ildefonso, Ilocos Sur

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San Ildefonso
Municipality
Municipality of San Ildefonso
Parish Church of San Ildefonso
Flag
Motto:  Progreso San Ildefonso! (Progress San Ildefonso)
Map of Ilocos Sur with San Ildefonso highlighted
OpenStreetMap
San Ildefonso Location within the Philippines
Coordinates: 17°37′38″N 120°23′38″E / 17.6272°N 120.3939°E / 17.6272; 120.3939
Country	Philippines
Region	Ilocos Region
Province	Ilocos Sur
District	1st district
Founded	March 1625
Named for	Saint Ildefonsus
Barangays	15 (see Barangays)
Government  [1]
• Type	Sangguniang Bayan
• mayor of San Ildefonso	Christian Daniel A. Purisima
• Vice Mayor	Robert R. Riego
• Representative	Deogracias Victor B. Savellano
• Municipal Council	Members Nona T. Purisima Mariano M. Pamo Jr. Luzminda D. Padua Nelson T. Retreta Efren J. Pola Renato P. Pecho Richard A. Palomares Cesar R. Revibes
• Electorate	5,836 voters (2022)
Area [2]
• Total	11.35 km2 (4.38 sq mi)
Elevation	10 m (30 ft)
Highest elevation	47 m (154 ft)
Lowest elevation	0 m (0 ft)
Population  (2020 census)[3]
• Total	8,190
• Density	720/km2 (1,900/sq mi)
• Households	1,976
Economy
• Income class	5th municipal income class
• Poverty incidence	14.06 % (2021)[4]
• Revenue	₱ 93.78 million (2020), 41.79 million (2012), 41.96 million (2013), 31.45 million (2014), 64.36 million (2015), 81.08 million (2016), 55.07 million (2017), 107.6 million (2019), 190.3 million (2021), 195.8 million (2022)
• Assets	₱ 458.5 million (2020), 124.2 million (2012), 125.3 million (2013), 131.5 million (2014), 183.4 million (2015), 235 million (2016), 264.4 million (2017), 376.9 million (2018), 447.8 million (2019), 543.7 million (2021), 624.9 million (2022)
• Expenditure	₱ 69.23 million (2020), 22.34 million (2012), 26.63 million (2013), 29.29 million (2014), 30.92 million (2015), 32.86 million (2016), 37.52 million (2017), 48.74 million (2018), 56.54 million (2019), 949.5 million (2021), 143.9 million (2022)
• Liabilities	₱ 37.86 million (2020), 23.61 million (2012), 15.53 million (2013), 19.54 million (2014), 57.65 million (2015), 60.94 million (2016), 53.2 million (2017), 35.22 million (2018), 26.74 million (2021), 46.18 million (2022)
Service provider
• Electricity	Ilocos Sur Electric Cooperative (ISECO)
Time zone	UTC+8 (PST)
ZIP code	2728
PSGC	012919000
IDD : area code	+63 (0)77
Native languages	Ilocano Tagalog

San Ildefonso, officially the Municipality of San Ildefonso (Ilocano: Ili ti San Ildefonso; Filipino: Bayan ng San Ildefonso), is a 5th class municipality in the province of Ilocos Sur, Philippines. According to the 2020 census, it has a population of 8,190 people.^[3]

The town got its name from Saint Ildephonsus.

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.

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.^[5]

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. Each barangay consists of puroks and some have sitios.

In the 2020 census, San Ildefonso had a population of 8,190.^[3] The population density was 720 inhabitants per square kilometre (1,900/sq mi).

Poverty incidence of San Ildefonso

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, belonging to the first congressional district of the province of Ilocos Sur, is governed by a mayor designated as its local chief executive and by a municipal council as its legislative body in accordance with the Local Government Code. The mayor, vice mayor, and the councilors are elected directly by the people through an election which is being held every three years.

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

• Pasyalang Ilocos Sur
• Philippine Standard Geographic Code
• Philippine Census Information
• Local Governance Performance Management System