Escondido (/ˌɛskənˈdiːdoʊ/ ES-kən-DEE-doh) is a city located in San Diego County's North County region, 30 miles (48 km) northeast of Downtown San Diego, California. Created in 1888, it is one of the oldest cities in San Diego County. The city had a population of 143,911 in the 2010 census.