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The 11 LGUs

Ilocos Sur's First Congressional District — eleven unique Local Government Units, each with its own heritage, character, and community, all served by DILG Ilocos Sur Sub-Cluster 1.

1 City, 10 Municipalities
226+ Barangays
~229,000 Population
Hon. Jeremias "Jerry" C. Singson
Province
Hon. Jeremias "Jerry" C. Singson
Provincial Governor
Heritage Province of Ilocos Sur
Hon. Ronald V. Singson
Congressional District
Hon. Ronald V. Singson
Representative
1st Congressional District of Ilocos Sur
Contact Us
LGU Profiles

Local Government Units

Learn more about the First District LGUs, their government officials, programs, and tourism highlights.

Vigan City overview
⭐ CityFeatured
Vigan City seal

Vigan City

3rd Class Independent Component City
Mayor Hon. Randolf "Randy" V. Singson
City Mayor
Hon. Randolf "Randy" V. Singson
53,879
Population
40
Barangays
25.12 km²
Area

sdgsgThe provincial capital of Ilocos Sur and a UNESCO World Heritage Site renowned for its preserved Spanish colonial architecture.arhbrh

Highlights
  • UNESCO World Heritage Site
  • Heritage Conservation Hub
  • Tourism and Cultural Center
  • Kalesa Rides and Cobblestone Streets
  • Vigan Longganisa Capital
Tourism

Calle Crisologo, Plaza Burgos, Bantay Church Bell Tower, Vigan Cathedral, Plaza Salcedo, and the Mestizo District.

Contact
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ASGAEGQG@GMAIL.COM
25.12 km² land areaContact Office
Bantay overview
2nd ClassFeatured
Bantay seal

Bantay

2nd Class Municipality
Mayor Hon. Samuel C. Parilla
Municipal Mayor
Hon. Samuel C. Parilla
44,430
Population
18
Barangays
55.35 km²
Area

Home to the historic Bantay Bell Tower (Cab-baritan Tower) and Sta. Monica Church.

Highlights
  • Home of the Historic Bantay Bell Tower
  • Bantay Church (St. Augustine Parish)
  • Proximity to Vigan City
  • Rich Spanish Colonial Heritage
  • Traditional Ilocano Crafts
Tourism

Bantay Bell Tower, St. Augustine Parish Church, Pinsal Falls nearby, heritage trails.

Contact
55.35 km² land area
3rd Class

Cabugao

3rd Class Municipality
Municipal Mayor
Hon. Municipal Mayor
27,942
Population
34
Barangays
118.53 km²
Area

A coastal municipality known for the Kapurpurawan-like rock formations and its historic church.

Highlights
  • Agricultural Hub - Rice and Tobacco
  • Pristine Coastal Beaches
  • Salt Production Industry
  • Traditional Ilocano Weaving (Abel)
  • Community-Based Livelihood Programs
Tourism

Cabugao Beach, San Juan de Sahagun Parish Church, scenic coastal roads, and local weekend markets.

Contact
118.53 km² land area
4th Class

Caoayan

4th Class Municipality
Municipal Mayor
Hon. Municipal Mayor
16,659
Population
12
Barangays
8.2 km²
Area

A small riverside municipality adjacent to Vigan City.

Highlights
  • Agricultural Community
  • Proximity to Vigan City
  • Traditional Farming Practices
  • Community Development Programs
  • Solid Waste Management Initiatives
Tourism

Local church heritage, traditional Ilocano architecture, and agricultural tourism opportunities.

Contact
8.2 km² land area
4th Class

Magsingal

4th Class Municipality
Municipal Mayor
Hon. Municipal Mayor
20,437
Population
31
Barangays
45.6 km²
Area

Known for hosting the Ilocos Sur Trade Fair Grounds and pottery-making traditions.

Highlights
  • Magsingal Museum - Cultural Heritage Hub
  • Traditional Abel Weaving
  • Pottery and Traditional Crafts
  • Rice and Tobacco Farming
  • Cultural Preservation Programs
Tourism

Magsingal Museum, San Ildefonso Parish Church, local craft shops, and Magsingal River.

Contact
45.6 km² land area
5th Class

San Ildefonso

5th Class Municipality
Municipal Mayor
Hon. Municipal Mayor
10,812
Population
null
Barangays
15.03 km²
Area

One of the smallest municipalities of the district, known for weaving traditions.

Contact
15.03 km² land area
3rd Class

San Juan (Lapog)

3rd Class Municipality
Municipal Mayor
Hon. Municipal Mayor
28,753
Population
null
Barangays
78.44 km²
Area

Formerly known as Lapog, known for its beaches along the West Philippine Sea.

Contact
78.44 km² land area
4th Class

San Vicente

4th Class Municipality
Municipal Mayor
Hon. Municipal Mayor
10,896
Population
null
Barangays
25.71 km²
Area

A quiet agricultural municipality adjoining Vigan City.

Contact
25.71 km² land area
3rd Class

Santa Catalina

3rd Class Municipality
Municipal Mayor
Hon. Municipal Mayor
25,581
Population
11
Barangays
44.72 km²
Area

Home to the Mindoro Beach and the historic Sta. Catalina de Alejandria Church.

Highlights
  • Infrastructure Development Programs
  • Social Services Improvements
  • Community Empowerment Initiatives
Tourism

Santa Catalina Church, local plazas, traditional markets, and community centers.

Contact
Santa Catalina Municipal Hall, Santa Catalina, Ilocos Sur 2716
(077) 601-7890
santacatalina@dilg.gov.ph
44.72 km² land areaContact Office
4th Class

Santo Domingo

4th Class Municipality
Municipal Mayor
Hon. Municipal Mayor
20,536
Population
22
Barangays
40.63 km²
Area

A coastal town known for its rich fishing grounds and agricultural production.

Highlights
  • Active Fishing Industry
  • Coastal Tourism Development
  • Fisherfolk Support Programs
Tourism

Santo Domingo Beach, Baroro River, coastal mangroves, and local fishing ports.

Contact
Santo Domingo Municipal Hall, Santo Domingo, Ilocos Sur 2718
(077) 601-8901
santodomingo@dilg.gov.ph
40.63 km² land areaContact Office
3rd ClassFeatured

Sinait

3rd Class Municipality
Municipal Mayor
Hon. Municipal Mayor
32,809
Population
29
Barangays
89.31 km²
Area

Known for the Minor Basilica of Our Lady of Charity, a major pilgrimage site.

Highlights
  • Shrine of Our Lady of Carmel
  • Progressive Commercial Hub
  • Strong Religious Heritage
  • Vibrant Local Economy
  • Excellence in Local Governance
Tourism

Shrine of Our Lady of Carmel, Sinait beach, local heritage structures, and weekend markets.

Contact
89.31 km² land area
Geographic Coverage

District Map

Explore all 11 municipalities and key offices of DILG Sub-Cluster 1. Click any pin for details.

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