Bostonia is a neighborhood in San Diego County, California, comprising part of the northeastern portion of the city of El Cajon, as well as adjacent unincorporated areas of San Diego County. The portion of Bostonia that lies outside the El Cajon city limits is classified as a census-designated place (CDP) for statistical purposes by the United States Census Bureau. The population of the CDP was 15,379 at the 2010 census, up from 15,169 at the 2000 census.
Bostonia Store in the early 20th century, at 2nd & Broadway. The store was established in 1886, and closed in February 1960.
El Cajon is a city in San Diego County, California, United States, 17 mi (27 km) east of downtown San Diego. The city takes its name from Rancho El Cajón, which was named for the box-like shape of the valley that surrounds the city, and the origin of the city's common nickname "the Box".
El Cajon, California
El Cajon takes its name from Rancho El Cajón, which was owned by the family of Don Miguel de Pedrorena, a Californio ranchero and signer of the California Constitution.