@JLBunter best place to go is twitter. EvertonUSA has done a fantastic job in linking up regional groups.
https://twitter.com/EvertonUSA
They can help for other parts of the country.
SF group on Twitter:
https://twitter.com/SFEvertonians
Per their notes on the EvertonUSA page (their own homepages seems down atm):
San Francisco Evertonians
San Francisco has historically been a hotspot for soccer players and supporters alike. Due to the tremendous diversity of its citizens, the city reflects the passion of international soccer culture. In the wake of Everton's trip to San Francisco to play Juventus in the 2013 International Champions Cup, the SF Evertonians were formed. Toffees from around the Bay Area now meet weekly at
McTeague's Saloon in the Polk Gulch to watch Everton matches, have a drink, and talk soccer. Since its inception, the group has been growing with the rest of the Everton USA national supporters group. The SF Evertonians welcome any Everton supporters to join us for a match at McTeague's, one of the city's best soccer pubs. It's a grand old team to support!