San Fernando, La Union

San Fernando
Pindangan
City of San Fernando
(from top: left to right) Town Plaza, Cathedral of Saint William the Hermit, La Union Provincial Capitol, Manila North Road, Ma-Cho Taoist Temple and San Fernando Skyline
Nicknames: 
Prime Capital of Ilocandia
Botanical Garden City
Map of La Union with San Fernando highlighted
Interactive map of San Fernando
San Fernando
Location within the Philippines
Coordinates: 16°37′N 120°19′E / 16.62°N 120.32°E / 16.62; 120.32
CountryPhilippines
RegionIlocos Region
ProvinceLa Union
District 1st district
FoundedMay 6, 1786
CityhoodMarch 20, 1998
Named afterFerdinand III of Castile
Barangays59 (see Barangays)
Government
 • TypeSangguniang Panlungsod
 • MayorHermenegildo A. Gualberto
 • Vice MayorAlfredo Pablo R. Ortega
 • RepresentativeFrancisco Paolo P. Ortega V
 • City Council
Members
  • Kyle Marie Eufrosito Y. Nisce
  • Pablo C. Ortega
  • Lucia Esperanza O. Valero
  • Jonathan Justo A. Orros
  • Edwin H. Yumul
  • Janwell E. Pacio
  • Rodolfo M. Abat
  • Arnel A. Almazan
  • Aldrine R. Jucar
  • John H. Orros
  • Mark Anthony A. Ducusin
  • Quintin L. Balcita Jr.
 • Electorate77,490 voters (2025)
Area
 • Total
102.72 km2 (39.66 sq mi)
Elevation
101 m (331 ft)
Highest elevation
1,124 m (3,688 ft)
Lowest elevation
0 m (0 ft)
Population
 (2024 census)
 • Total
124,809
 • Density1,215.0/km2 (3,146.9/sq mi)
 • Households
32,184
Economy
 • Income class3rd city income class
 • Poverty incidence
5.09
% (2021)
 • Revenue PHP 1,195,136,008.92 billion (22.11%) (2022)
 • Assets PHP 2,661,462,427.51 billion (20.67%) (2022)
 • Equity PHP 2,241,183,510.80 billion (15.89%) (2022)
 • Expenditure PHP 891,095,816.44 million (-7.00%) (2022)
 • Liabilities PHP 420,278,916.71 million (54.63%) (2022)
Service provider
 • ElectricityLa Union Electric Company (LUECO)
Time zoneUTC+8 (PST)
ZIP code
2500
PSGC
IDD:area code+63 (0)72
Native languagesIlocano
Tagalog
Websitewww.sanfernandocity.gov.ph

San Fernando, officially the City of San Fernando (Ilocano: Siudad ti San Fernando; Filipino: Lungsod ng San Fernando), is a component city and the capital of the province of La Union, Philippines. It serves as the regional and administrative center of the Ilocos Region. The city also functions as a hub for trade and commerce in northern Luzon and as a center for the culture and heritage of Ilocandia. According to the 2024 census, it has a population of 124,809 people with 77,490 registered voters as of 2025.

The City of San Fernando is a coastal city facing the South China Sea to the west and bordered by the Cordillera Central mountain range to the east. It consists of 59 barangays and has a total land area of 105.26 square kilometers. The city's majority ethnolinguistic group are the Ilocano people who speak Iloco language, as the city has historically been an Ilocano stronghold. It is one of two capital cities in the Philippines named San Fernando, the other being San Fernando, Pampanga.

As the regional center of the Ilocos Region, San Fernando hosts several regional and field offices of national government agencies, regional branches of government financial institutions, and various government-owned and controlled corporations. The city is also home to key educational and medical institutions, including the Ilocos Training and Regional Medical Center, which serves as the primary public health and medical facility in the region.