Naguilian, La Union

Naguilian
Municipality of Naguilian
Naguilian Municipal Hall, Downtown proper and Naguilian or Balili River
Nickname(s): 
The True Heart of La Union
Home of the Original Basi
Motto: 
Tattan Naguilian!
Map of La Union with Naguilian highlighted
OpenStreetMap
Naguilian
Location within the Philippines
Coordinates: 16°32′N 120°24′E / 16.53°N 120.4°E / 16.53; 120.4
CountryPhilippines
RegionIlocos Region
ProvinceLa Union
District 2nd district
FoundedFebruary 18, 1839
Barangays37 (see Barangays)
Government
  TypeSangguniang Bayan
  MayorHon. Nieri T. Flores
  Vice MayorHon. Reynaldo J. Flores
  RepresentativeHon. Dante S. Garcia
  Municipal Council
Members
  Electorate36,646 voters (2025)
Area
  Total
104.60 km2 (40.39 sq mi)
Elevation
95 m (312 ft)
Highest elevation
495 m (1,624 ft)
Lowest elevation
7 m (23 ft)
Population
 (2020 census)
  Total
52,189
  Density500/km2 (1,300/sq mi)
  Households
12,915
DemonymNaguilianon
Economy
  Income class1st municipal income class
  Poverty incidence
9.00
% (2021)
  Revenue PHP 307,477,249.26 million (28.02%) (2022)
  Assets PHP 1,153,571,103.05 billion (25.73%) (2022)
  Equity PHP 947,824,505.09 million (17.71%) (2022)
  Expenditure PHP 166,800,843.74 million (20.64%) (2022)
  Liabilities PHP 205,746,597.96 million (83.33%) (2022)
Service provider
  ElectricityLa Union Electric Cooperative (LUELCO)
Time zoneUTC+8 (PST)
ZIP code
2511
PSGC
IDD:area code+63(0)72
Native languagesIlocano
Tagalog
Major religionsRoman Catholic
Patron saintSaint Augustine of Hippo
Notable FestivalBasi Festival
Websitewww.naguilian.gov.ph

Naguilian, officially the Municipality of Naguilian (Ilocano: Ili ti Naguilian; Filipino: Bayan ng Naguilian), is a municipality in the province of La Union, Philippines, According to the 2020 census, it has a population of 52,189 people.

It is renowned as the Home of the Original Basi, a traditional fermented sugarcane wine. Naguilian is located at the geographical center of La Union and has a total land area of 10,086.85 hectares, making it the third-largest among the 19 towns and cities in the province. As of 2020, the town has 36,150 registered voters.