Hello Megan and thanks for your post.
Depending on your housing criteria, price range, and the general location where you want to live, there are many fine school districts up and down the SF Peninsula in the areas where you would like to live. Unfortunately, it is both unethical and ill advised for those of us holding a license to recommend school districts, but I can say that in all of the areas where you are looking, there are great school districts.
Keep in mind, however, that due to the location on the Peninsula near SF and the ease of commute to both the north and south bay areas, school district as well as location greatly contribute to the overall value and ease of resale at a later date. And, of course, if you are going to purchase just a one bedroom condominium (for example), school district does not play as vital a role as if the home were, for example, a single family three bedroom property. My recommendation would be to find a great home first, and then investigate the school's perfomance to determine if it is a factor in your purchase or resale.
California rates schools by their API or Academic Performance Index, and the API for any school can be found on the California State Department of Education website at http://api.cde.ca.gov.
To maximize your search and to obtain the best assistance in finding a home, work with a qualified real estate agent in the area. Good luck!
Grace Morioka, SRES, CID/Condo Expert
Area Pro Realty
Sunnyvale, Los Altos, Mountain View