The Marin County Deputy Sheriffs' app enables members to stay up to date on union events, benefits, resources and more. It also provides the ability to easily contact a MCDSA rep and obtain legal assistance.

The Marin County Deputy Sheriffs’ Association (MCDSA) is a professional organization of more than 200 sworn law enforcement officers employed by the offices of the Marin County Sheriff/Coroner, the Marin County District Attorney and the Department of Health and Human Services.