Calbiga

Calbiga
Municipality of Calbiga
Etymology: Calviva
Map of Samar with Calbiga highlighted
OpenStreetMap
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
 (2020 census)
  Total
23,310
  Density82/km2 (210/sq mi)
  Households
5,589
Economy
  Income class4th municipal income class
  Poverty incidence
28.10
% (2021)
  Revenue208.6 million (2022)
  Assets507.6 million (2022)
  Expenditure182.6 million (2022)
  Liabilities140.8 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 2020 census, it has a population of 23,310 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.