I noticed you mentioned the west coast in the subject line. The whole west coast is probably the hottest pinball area in the world right now. Portland and Seattle are showing the way, but BC and Cal are doing fine too. Many of the best players in the world live on the west coast. Last 5 or so PAPA's have been won by a Cal player.
Here in the bay area, there's 3 or 4 leagues now. In the city, there's SFPD:
East bay:
http://www.eastbaypinball.org/
I'm in the south bay and compete in BAPA: