Ditto on what stik said. That's the easiest way to get one started.
I got our club started a few years ago by checking out the Readers Gallery in FSM for guys who live in my area and tracking them down. I got their phone number or address and gave them a call. We now have 7 members and meet monthly and go to all the shows that are within a 2 hr drive. You could also check out the IPMS site for a club near you. And last but not least, you could go to a show near you and check around for guys that live in your area. I found a guy at one of the shows that lived on the outskirts of my area and belonged to a club in Phila. He now comes to our club meetings too in addition to his own.
Hope that this helps you. Good luck.
Jim 
Main WIP:
On the Bench: Artesania Latina (aka) Artists in the Latrine 1/75 Bluenose II
I keep hitting "escape", but I'm still here.