San Isidro, officially the Municipality of San Isidro (), is a 2nd class municipality in the province of Nueva Ecija, Philippines. According to the 2020 census, it has a population of 54,372 people. 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. San Isidro became the capital of the Philippines during the First Republic while President Emilio Aguinaldo was moving north to avoid being captured by American forces. History San Isidro was 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 sieged 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 Philippine–American 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 during the end of the war. Contemporary period On September 11, 1989, Mayor Enrique Lorenzo was on his way back from Manila to San Isidro 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 the two other companions died from their gunshot wounds while Mayor Lorenzo survived the attempted assassination with only his left shoulder wounded. Geography Barangays San Isidro is divided into nine barangays. Alua Calaba Malapit Mangga Poblacion Pulo San Roque Santo Cristo Tabon Climate Demographics Religion Majority of populace is Roman Catholic. Other religious groups have churches and places of worship. Economy 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 P129,676,820.86; assets of P494,469,351.35; liabilities of P229,800,110.14 and allotments of P135,154,456.00. Tourism Carron Dreampark is an amusement and theme park in Barangay Santo Cristo,