San Isidro, Nueva Ecija

San Isidro
Municipality of San Isidro
Municipal hall
Map of Nueva Ecija with San Isidro highlighted
OpenStreetMap
San Isidro
Location within the Philippines
Coordinates: 15°18′35″N 120°54′25″E / 15.3097°N 120.9069°E / 15.3097; 120.9069
CountryPhilippines
RegionCentral Luzon
ProvinceNueva Ecija
District 4th district
Barangays9 (see Barangays)
Government
  TypeSangguniang Bayan
  MayorFlorentino C. Tinio
  Vice MayorJohn Carlo A. Patiag
  RepresentativeEmerson D. Pascual
  Municipal Council
Members
  Electorate34,638 voters (2025)
Area
  Total
56.49 km2 (21.81 sq mi)
Elevation
21 m (69 ft)
Highest elevation
35 m (115 ft)
Lowest elevation
12 m (39 ft)
Population
 (2020 census)
  Total
54,372
  Density960/km2 (2,500/sq mi)
  Households
12,828
Economy
  Income class2nd municipal income class
  Poverty incidence
9.03
% (2021)
  Revenue244.2 million (2022)
  Assets613.6 million (2022)
  Expenditure210.5 million (2022)
  Liabilities196.2 million (2022)
Service provider
  ElectricityNueva Ecija 1 Electric Cooperative (NEECO 1)
Time zoneUTC+8 (PST)
ZIP code
3106
PSGC
IDD:area code+63(0)44
Native languagesKapampangan
Tagalog
Ilocano

San Isidro, officially the Municipality of San Isidro (Tagalog: Bayan ni San Isidro, Kapampangan: Balen ning San Isidro), is a municipality in the province of Nueva Ecija, Philippines. According to the 2020 census, it has a population of 54,372 people.

San Isidro became the capital of the Philippines during the First Philippine Republic when President Emilio Aguinaldo was moving north to avoid being captured by American forces. This municipality also has the first high school in the Philippines outside Manila