These foreclosure numbers on sdlookup.com are fascinating. I sorted by foreclosures and as of today the highest number of foreclosures in the county are in north Oceanside. Chula Vista zip codes hold 4 of the top 7 slots. Others at the top include Spring valley, Encanto and El Cajon. All these locations have a reputation of serving a lower income bracket. It’s no surprise the subprime mortgage market’s getting hammered.