C.W.
Well contact the school board, and maybe the city? I live in San Marcos so I don't know much about Oceanside area.
Also http://moms.meetup.com/817/ or http://sahm.meetup.com/505/ or http://moms.meetup.com/827/ they are all great moms groups in the area and there is another is called Carlsbad moms and tots on meetup.com. I know some of them have school information and kids in school.
Good luck.