How do i contact the san joaquin county health services agency? If you reside in San Joaquin County, contact your case worker or Human Services Agency (HSA) at (209) 468-1000. If you reside in Stanislaus County, contact your case worker or Community Service Agency (CSA) at their Toll Free number 1-877-652-0734 or (209) 558-2777.Where is the san joaquin county clerks office located? San Joaquin County Clerk Contact Information Address and Phone Number for San Joaquin County Clerk, a Clerk Office, at North San Joaquin Street, Stockton CA.How do i contact the san joaquin county recorder of deeds? You may contact the Recorder of Deeds by calling 209-468-3939, or by addressing inquiries to the office mailing address: San Joaquin County Recorder of Deeds, 44 North San Joaquin Street, Stockton, California, 95202.How to volunteer with san joaquin county public health services? Contact Tracers Volunteer Opportunity: San Joaquin County Public Health Services is in need of community volunteers to be trained as Contact Tracers. If you are interested in this potential unpaid volunteer position, please email [email protected] or Nicole Devencenzi and include "Contact Tracer" as the subject.