San Isidro, officially the Municipality of San Isidro (, Kapampangan: Balen ning San Isidro), is a municipality in the province of Nueva Ecija, Philippines. According to the , it has a population of people.
It 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
San Isidro, along with its origin Gapan, Aliaga, Cabiao, and San Antonio were parts of Pampanga until they were transferred to Nueva Ecija in 1848. It served as the capital of Nueva Ecija from 1852 to 1912. After the first cry against the Spanish colonial government was made in 1896, there were 2,000 revolutionary soldiers under General Mariano Llanera who besieged San Isidro.
On March 29, 1899, General Emilio Aguinaldo declared San Isidro as the capital of the Philippines after the revolutionary capital Malolos, Bulacan was captured by the Americans. However, this was short-lived. General Frederick Funston planned the capture of Aguinaldo to end the PhilippineâÂÂAmerican War in San Isidro.
The Wright Institute, established in 1903 in San Isidro, was the first high school established outside Manila during the American period.
The town was occupied by Japanese troops in 1942, during World War II. The combined U.S. and Philippine Commonwealth ground forces liberated San Isidro and defeated the Japanese forces in 1945.
On September 11, 1989, Mayor Enrique Lorenzo was on his way back from Manila with his wife Aurora, their driver, and one of their security personnel when they were ambushed by four gunmen along the Sta. Mesa Bridge. Aurora and two other companions died from their gunshot wounds while Mayor Lorenzo survived the attempted assassination with only his left shoulder wounded.
The municipality is bounded by Gapan to the east, the municipalities of San Leonardo and Jaen to the north, San Antonio to the west, Cabiao to the south-west, San Miguel, Bulacan, to the southeast and Candaba, Pampanga, to the south. It is from Cabanatuan, from Palayan, and from Manila.
San Isidro is divided into nine barangays, as shown below. Each barangay consists of puroks and some have sitios.
Majority of populace is Roman Catholic. Other religious groups have churches and places of worship.
Primarily depends on rice & vegetable farming, poultry and piggery.
As of 2017, based on Commission on Audit of the Philippines, San Isidro reached their income of ; assets of ; liabilities of and allotments of .
The San Isidro Schools District Office governs all educational institutions within the municipality. It oversees the management and operations of all private and public, from primary to secondary schools.