San Ildefonso, Ilocos Sur, Philippines : is a municipality in the province of Ilocos Sur Philippines, within Region 1-Ilocos, in the Republic of the Philippines.
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Barangays of San Ildefonso, in Ilocos Sur Province, within Region 1 – Ilocos Region in the Republic of The Philippines
Arnap • Bahet • Belen • Bungro • Busiing Norte • Busiing Sur • Dongalo • Gongogong • Iboy • Kinamantirisan • Otol-Patac • Poblacion East • Poblacion West • Sagneb • Sagsagat
San Ildefonso, Ilocos Sur, Philippines
Municipality Class: 5th Class
Area in Hectares: 1,133.00
Population (2020 Census): 7,988
Population (2015 Census): 7,273
Annual Growth Rate (2015-2020): 1.99%
San Ildefonso, Ilocos Sur 2022 Elected Officials
Mayor: Everdina L. Balisong
Vice Mayor: Christian L. Agpalasin
Councilors:
- Noel L. Cabanilla
- Arnold B. Cabanilla
- Renato R. Cabanilla
- Joel D. Cabanilla
San Ildefonso, Ilocos Sur 2019-2022 Elected Officials
- Municipal Mayor: Purisima, Christian Daniel A.
- Municipal Vice-Mayor: Riego, Robert R.
- Sangguniang Bayan Member (Councilor): Purisima, Nona T.
- Sangguniang Bayan Member (Councilor): Pamo, Mariano M.
- Sangguniang Bayan Member (Councilor): Padua, Luzminda D.
- Sangguniang Bayan Member (Councilor): Retreta, Nelson T.
- Sangguniang Bayan Member (Councilor): Pola, Efren J.
- Sangguniang Bayan Member (Councilor): Pecho, Renato P.
- Sangguniang Bayan Member (Councilor): Palomares, Richard A.
- Sangguniang Bayan Member (Councilor): Revibes, Cesar R.
Photo Gallery of San Ildefonso, Ilocos Sur, Philippines
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Navigate to other Municipalites of Ilocos Sur
List of Municipalities in the Ilocos Sur province within Region I in the Republic of The Philippines
Alilem | Banayoyo | Bantay | Burgos | Cabugao | Caoayan | Cervantes | Galimuyod | Gregorio Del Pilar | Lidlidda | Magsingal | Nagbukel | Narvacan | Quirino | Salcedo | San Emilio | San Esteban | San Ildefonso | San Juan | San Vicente | Santa | Santa Catalina | Santa Cruz | Santa Lucia | Santa Maria | Santiago | Santo Domingo | Sigay | Sinait | Sugpon | Suyo | Tagudin
Cities in the province of Ilocos Sur: Candon City | Vigan City(Capital)Featured News of the Philippines
January 7, 2026
1️⃣ Andas for Traslación 2026 now ready, with upgrades
The Andas carrying the Black Nazarene for January 9 Traslación features new steering wheel and reinforced underchassis to handle massive devotee crowds safely.
2️⃣ Over 3,500 affected by Mayon volcano unrest
NDRRMC reports 3,515 people from 964 families evacuated in Albay due to recent magmatic eruptions, ashfall, and pyroclastic flows; all in permanent danger zone.
3️⃣ Magnitude 6.4 quake hits off southern Philippines
USGS detects 6.4 quake off Davao Oriental coast—no tsunami threat reported, but locals feel shaking; no immediate damage confirmed.
The move towards Federalism in the Philippines is simply a ploy to create political dynasties and establish a Bangsamoro State (an autonomous Islamic State).