San Antonio, Northern Samar

San Antonio
Dalupiri
Municipality of San Antonio
Dalupiri Island
Map of Northern Samar with San Antonio highlighted
Interactive map of San Antonio
San Antonio
Location within the Philippines
Coordinates: 12°24′50″N 124°16′44″E / 12.414°N 124.279°E / 12.414; 124.279
CountryPhilippines
RegionEastern Visayas
ProvinceNorthern Samar
District 1st district
Founded1904
Named afterSt. Anthony of Padua
Barangays10 (see Barangays)
Government
 • TypeSangguniang Bayan
 • MayorManuel M. Esponilla
 • Vice MayorRudy S. Baguioso
 • RepresentativePaul R. Daza
 • Councilors
List
 • Electorate7,159 voters (2025)
Area
 • Total
27.00 km2 (10.42 sq mi)
Elevation
20 m (66 ft)
Highest elevation
626 m (2,054 ft)
Lowest elevation
0 m (0 ft)
Population
 (2024 census)
 • Total
8,904
 • Density329.8/km2 (854.1/sq mi)
 • Households
2,057
Economy
 • Income class5th municipal income class
 • Poverty incidence
19.5
% (2021)
 • Revenue₱ 87.08 million (2022)
 • Assets₱ 150.9 million (2022)
 • Expenditure₱ 71.33 million (2022)
 • Liabilities₱ 27.86 million (2022)
Service provider
 • ElectricityNorthern Samar Electric Cooperative (NORSAMELCO)
Time zoneUTC+8 (PST)
ZIP code
6407
PSGC
IDD:area code+63 (0)55
Native languagesCebuano
Waray
Tagalog
Websitewww.sanantonio-nsamar.gov.ph

San Antonio, officially the Municipality of San Antonio (Waray: Bungto san San Antonio; Cebuano: Lungsod sa San Antonio; Tagalog: Bayan ng San Antonio), is a municipality in the province of Northern Samar, Philippines. According to the 2024 census, it has a population of 8,882 people.

Its territory is coterminous with Dalupiri Island, just off the western coast of Samar Island at the south end of the San Bernardino Strait. The island's white beaches are considered an "undisturbed paradise" and future "premier tourist destination" in the Eastern Visayas region. San Antonio is also unique, as it is the only municipality in Northern Samar that also speaks Cebuano due to the influx of Boholano and Cebuano settlers in the past. The locals speak Waray which is the predominant language of Northern Samar and it is the main lingua franca in the island.