You may be able to find listings of groups though the United Way toll free #211 from a land line. Not sure if you were inquiring about people with all sorts of disabilities or with cerebral palsy. There is a search engine http://cp.meetup.com/ that allows you to locate such groups in your area.
NAMI is another organization that may have leads for you -http://www.co.pierce.wa.us/pc/abtus/ourorg/humsvcs/altc/adrc/supportgroups.htm
You may also look into what your local Community Health Centers are offering. (Google Community Health and the state where you are for a list)
Did you post a reply to me? I don't see anything under the thread. Please let me know if there is anything else. Thanks.