Bostonia, CA

Bostonia is a San Diego County community tied closely to El Cajon. Part of Bostonia lies inside northeastern El Cajon, while the unincorporated portion is counted as a census-designated place. It is not a standalone city with a large civic brand; it is more of a neighborhood-scale East County place, shaped by schools, older subdivisions, small commercial corridors, and nearby freeway access. The local history includes late-1800s agricultural experiments and district schools, but today's Bostonia is best understood as a practical residential community on El Cajon's edge.