Most, if not all, states have state quilt guilds with chapters throughout the state. Check it out on the net: [state] quilters guild. You will find something.
Most LQS's do have fliers of book marks for local quilting guilds.
Local quilt shows usually have advertising for local groups. Check your LQS's and "The Country Register" for quilt shows.
I have been trying to encourage the LQS's to put a listing of local quilting groups on their bulletin boards. So far it is slow going. Maybe because some groups prefer word of mouth advertising???