Chowchilla is a city in Madera County, California, United States. Chowchilla is located 15 miles (24 km) northwest of Madera, at an elevation of 240 feet (73 m). It is a principal city of the Madera–Chowchilla Metropolitan Statistical Area. The population was 18,720 at the 2010 census, up from 11,127 at the 2000 census.