Sara, you might get more traffic to your post if you moved it to the "Water Cooler" category, and/or "Atheism". I'd suggest also joining some of the California groups and posting your question there. There's also a CA group on the second page of that search.
I'm in Chico and I'd love to find others interested in starting an atheist/free thinker group of some sort. There are two other Chico folks listed in the California Atheist group. Maybe we can contact them and try to arrange a meeting. Do you know if there is a student atheist group at Chico State?
I will pm all Chico peeps on A|N after Burning Man (week after labor day) to organize a get together at one of the downtown watering holes. La Salle's would be nice, but it should be somewhere where you can carry on a conversation too ;-)