Calbiga

Calbiga
Municipality of Calbiga
Etymology: Calviva
Map of Samar with Calbiga highlighted
Interactive map of Calbiga
Calbiga
Location within the Philippines
Coordinates: 11°38′N 125°01′E / 11.63°N 125.02°E / 11.63; 125.02
CountryPhilippines
RegionEastern Visayas
ProvinceSamar
District 2nd district
Barangays41 (see Barangays)
Government
 • TypeSangguniang Bayan
 • MayorMelchor F. Nacario
 • Vice MayorEva L. Castillo
 • RepresentativeReynolds Michael Tan
 • Councilors
List
 • Electorate18,174 voters (2025)
Area
 • Total
283.70 km2 (109.54 sq mi)
Elevation
56 m (184 ft)
Highest elevation
340 m (1,120 ft)
Lowest elevation
0 m (0 ft)
Population
 (2024 census)
 • Total
23,309
 • Density82.161/km2 (212.80/sq mi)
 • Households
5,589
Economy
 • Income class4th municipal income class
 • Poverty incidence
28.1
% (2021)
 • Revenue₱ 208.6 million (2022)
 • Assets₱ 507.6 million (2022)
 • Expenditure₱ 182.6 million (2022)
 • Liabilities₱ 140.8 million (2022)
Service provider
 • ElectricitySamar 2 Electric Cooperative (SAMELCO 2)
Time zoneUTC+8 (PST)
ZIP code
6715
PSGC
IDD:area code+63 (0)55
Native languagesWaray
Tagalog

Calbiga, officially the Municipality of Calbiga (Waray: Bungto han Calbiga; Tagalog: Bayan ng Calbiga), is a municipality in the province of Samar, Philippines. According to the 2024 census, it has a population of 23,309 people.

The town is famous for the Langun-Gobingob Caves which is the largest cave system in the Philippines, reputed to be the second largest in Asia and the world's third largest karst formation.