Not that I know of. There are guys in Washington and Nevada. I don't think the CA guys are that far north.
there used to be an extension of the washington cascade column down in the portland area (I can't remember what they called themselves). http://www.eskimo.com/~phill/wcc/index.html contact Phill there through the website, if there are any current contacts down there he will have them. Keep in mind, he works himself ragged, so it usually takes a bit to get a reply.
U571, about half the members of the Queen's Own 1/72 scale club are in Oregon. There are also a few ex-WWCC members who no longer participate up there. I would recommend that you introduce yourself on: http://www.microrccenter.com/forum/index.php?s=92aa6b813ead27bfe81cdd6396257e1a&showforum=26 that's where the Queen's Own folks hang out.
There was or is a small independent group that used WWCC rules and were in Roseburg OR. I will see if I can find something for you. I am in the process of getting married and moving. Please do not expect anything soon.
I could not find an address but,here are 2 phone numbers Out of Roseburg Mike Wright Home Phone (541)832-2782 Cell Phone (541)295-0571 Small group of guys. Good luck