it isn’t as prevalent in California as some of the chains, but we do have 3 in the greater Sacramento area:
http://www.chick-fil-a.com/restlocator/
I live in San Jose, and apparently their closest store is in Fairfield.
OTOH, I drive through Fairfield pretty regularly, and it’s usually where I stop for dinner on the way up to Willows. I just might pay them a visit next time I’m passing through (partly to support them, but also because I’ve heard their food is quite good).