The following link is a great resource of information. The California Department of Aging contracts with and oversees the local Area Agencies on Aging (AAA) that coordinate a variety of services for older adults, adults with disabilities, informal caregivers, and family caregivers.
You can locate the AAA in your area by selecting your county on the Find Services in My County page of this website.
Family Caregiver Services – Consumer | California Department of Aging – State of California