Free Developmental Screening

Children's Services

Your child’s development is a journey.
Screening can show you the way.

Taking a first step, waving “bye-bye,” and pointing to something interesting are all developmental milestones, or things most children can do by a certain age. Children reach many milestones in how they plan, learn, speak, act, and move.

WHO: You – parents, legal tutors, and other caregivers can complete a screening for your child

WHAT: Developmental screening is a way to look for your child’s developmental milestones

WHEN: From one month to 5 years of age

WHY: To better understand your child’s development, to celebrate their accomplishments, and to identify developmental areas where he/she might benefit from additional support or resources

FREE confidential online child developmental screenings

Want to know more about how your child learns, plays, and grows? Want to identify your child’s strengths and areas where he or she may need encouragement or support? A developmental screening is a playful and fun way to assess your child’s development in your own home.

Pediatricians recommend that all children be screened at least three times prior to their fifth birthday. Research shows fewer than 1 in 3 children receive a timely developmental screening.

Complete a screening online now in English or Spanish! You can complete the confidential two-part questionnaire in about 20 minutes, and it will help you to know if your child is reaching key milestones in the following developmental areas:

  • Communication
  • Gross Motor
  • Fine Motor
  • Problem Solving
  • Personal Social
  • Social-Emotional

For Residents of San Mateo County only. If you live outside of San Mateo County, please contact your child’s pediatrician for developmental resources.

About the Screening

The Ages & Stages Questionnaires are validated developmental screening tools recommended by the American Academy of Pediatrics and used internationally by medical providers for more than 20 years.

To learn more, go to

Please note that the information you enter through the Ages & Stages Questionnaires (ASQ-3) and ASQ-SE 2 is secure and cannot be seen or accessed by anyone other than the program employees who have invited you to participate in this screening. All services provided are free and confidential.

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