Seneca provides services in the following counties: Alameda, Contra Costa, Marin, Napa, San Francisco, Santa Clara, Solano and Sonoma. Specific addresses and services for each county can be found below.
Seneca Facilities
Services by County
Use the map to find services offered by county.
Services Offered
Find Seneca Near You
See our other regional locations for a full list of services offered in each area.