Alfonso Castañeda

Alfonso Castañeda
Municipality of Alfonso Castañeda
Downtown area
Nickname: 
Last Frontier of Nueva Vizcaya
Map of Nueva Vizcaya with Alfonso Castañeda highlighted
Interactive map of Alfonso Castañeda
Alfonso Castañeda
Location within the Philippines
Coordinates: 15°47′36″N 121°18′09″E / 15.7933°N 121.3025°E / 15.7933; 121.3025
CountryPhilippines
RegionCagayan Valley
ProvinceNueva Vizcaya
District Lone district
FoundedJuly 10, 1979
Barangays6 (see Barangays)
Government
 • TypeSangguniang Bayan
 • MayorWilson M. Capia-ao
 • Vice MayorEvelinda D. Huerta
 • RepresentativeTimothy Joseph Cayton (Aksyon)
 • Electorate6,866 voters (2025)
Area
 • Total
375.40 km2 (144.94 sq mi)
Elevation
430 m (1,410 ft)
Highest elevation
1,079 m (3,540 ft)
Lowest elevation
169 m (554 ft)
Population
 (2024 census)
 • Total
8,933
 • Density23.80/km2 (61.63/sq mi)
 • Households
1,795
Economy
 • Income class1st municipal income class
 • Poverty incidence
15.14
% (2021)
 • Revenue₱ 194.2 million (2022)
 • Assets₱ 450.3 million (2022)
 • Expenditure₱ 183.6 million (2022)
 • Liabilities₱ 72.57 million (2022)
Service provider
 • ElectricityNueva Vizcaya Electric Cooperative (NUVELCO)
Time zoneUTC+8 (PST)
ZIP code
3714
PSGC
IDD:area code+63 (0)78
Native languagesIlocano
Tagalog
Websitehttps://acasnv.gov.ph

Alfonso Castañeda, officially the Municipality of Alfonso Castañeda (Ilocano: Ili ti Alfonso Castañeda; Tagalog: Bayan ng Alfonso Castañeda), is a municipality in the province of Nueva Vizcaya, Philippines. According to the 2024 census, it has a population of 8,933 people.