Child Support Health & Rehabilitation Services Community Services
Child Support
Apply for Child Support

Information to apply online or in person.  Apply for Child Support 

Calculate Child Support

Estimate the amount of child support that may be ordered in your case. Calculate Child Support

Calculate Payoff of Child Support Debt

Estimate the cost and time it will take to pay off your past due balance based on the arrears payment being made. Calculate payoff

Definitions of Common Child Support Terms

Better understanding of common child support terms and acronyms.  View definitions


Direct access to complete and print most customer forms. View forms

Frequently Asked Questions

To help understand and navigate this process.  View FAQs

Office of Child Support Services

You can find additional resources and information.  View more


General Information on the Child Support Program. View publications

Health & Rehabilitation Services
Alcohol Abuse and Binge Drinking

Binge drinking occurs when someone ingests a large quantity of alcohol in a short period of time, and it is also defined by the person’s blood alcohol content.  View more information

Alcohol Use Disorders

Living with an alcohol use disorder (AUD) can damage both the sufferer and their family. Alcohol-related deaths are the third most common type of preventable death in the United States, illustrating the stakes and severity of this disease.  View more information

Alcohol Rehab Help

Alcohol Rehab Help is an informational web guide created for people struggling with alcohol use disorders (AUD) and co-occurring mental health disorders. Not only do we offer information on Alcohol Use Disorder, but we also have comprehensive information regarding treatment options. View more information

ARK Behavioral Health

COVID – Mental Health and Addiction Resources. View more information

COVID-19 Resources

COVID-19 has affected everyone from all walks of life, so it’s no surprise that it’s had a huge impact on drug and alcohol abuse treatment. Many of those suffering from addiction are left wondering how they can manage rehab and coronavirus safely together. View resources

Detox Local

An extensive list of mental health and substance use resources specifically for the AAPI (American Asian and Pacific Islander) community. View information

Get Healthy - San Mateo County 

Health begins where people live, learn, work, and play. Get Healthy San Mateo County is a local collaborative of community-based organizations, County agencies, cities, schools, and hospitals working together to advance policy change to prevent diseases and ensure everyone has equitable opportunities to live a long and healthy life. View Information 

Green Mountain Treatment Center

During times of stress, people often reach for alcohol. View information

Live Another Day

Extensive information on mental health and substance use resources for people of color. Their mission is equal access to life-saving resources. They have guides for black, Latinx, Asian, and native people. View information


If you’re recovering from substance use disorder, chances are you want to create and get into a new routine as fast as possible. View Information 

Recovery Ohio

Ohio Recovery Center (ORC) is a drug and alcohol rehab facility located in Van Wert, Ohio. Our addiction treatment services begin with a medically monitored detox program to help you or a loved one achieve stability and balance during withdrawal. View Information


Helping kids, teens and parents deal with a family break up. View more

Teletherapy Resource

Register for our teletherapy, telepsychiatry and other online addiction treatment programs below and we’ll match you with a licensed professional who will meet with you regularly and guide you on the path to recovery. View more

White Light 

Building a Strong Support System:  Resources for Loved Ones of Alcoholics. View more

Community Services
Community Handbooks

Welcome to the Community Information Handbooks. It is my pleasure to present this resource guide to the residents of San Mateo County. View Handbook

Families Change

Helping kids, teens and parents deal with a family break up. View more

National Responsible Fatherhood Clearinghouse

The National Responsible Fatherhood Clearinghouse is an Office of Family Assistance (OFA) funded national resources for fathers, ...View more 

The Parent Project

Find answers to your parenting questions. View more

Family Law Facilitator

The Self-Help Center / Family Law Facilitator help people who need legal information but do not have lawyers.  Help is Free. View information

Resources for Youth and Parents

San Mateo County Human Services Agency has several resources for Child Care, Parenting Classes & Programs, Parent Support, Youth Activities & Programs, Early Learning and Homework Assistance. View information 

San Mateo County Bay Area Legal Aid

BayLegal’s provides meaningful access to the civil justice system through quality legal assistance regardless of a client’s location, language or disability.  View more

StarVista Programs

We all experience life’s challenges, but without the resources to cope, struggles can become catastrophic. That’s where StarVista can help. View more

Contact Information
Child Support Services – Main Office
555 County Center
2nd Floor
Redwood City, CA 94063Get Directions
Monday - Thursday:
9:00 am - 4:00 pm
Lobby open for in-person drop-ins and appointments
Lobby closed/Call Center Open: 8:00am - 4:45pm (closed 12:00pm - 1:00pm) . See more details below 
Saturday - Sunday:
Contact Information
Toll Free: (866) 901-3212 TTY toll free: (866) 399-4096 Fax: (650) 366-4711 Email:
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