Happy African American family with their little girl.

3 Year Online Milestone Checklist

3-year old girl, smiling

How your child plays, learns, speaks, acts, and moves offers important clues about your child’s development. Developmental milestones are things most children (75% or more) can do by a certain age. Check the milestones your child has reached by the end of 3 years by completing the checklist below. Share it with your child’s doctor, teacher, and other providers, and be sure to talk about the milestones your child has reached and what to expect next.

Checking children’s development regularly is important. CDC’s free Milestone Tracker app is also available to complete the checklists, with reminders and helpful tips on the go!  Available on the AppStoreexternal icon and GooglePlayexternal icon.

Your Child at 3 Years

Milestones matter! Check the milestones your child has reached by age 3 by completing the checklist below.

*These fields are required.

CDC does not collect or share any personal information that can be used to identify you or your child.

What Most Babies Do by this Age:


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Notices other children and joins them to play


Talks with you in conversation using at least two back-and-forth exchanges

Asks “who,” “what,” “where,” or “why” questions, like “Where is mommy/daddy?”

Says what action is happening in a picture or book when asked, like “running,” “eating,” or “playing”

Says first name, when asked

Talks well enough for others to understand, most of the time

Cognitive (learning, thinking, problem-solving)

Draws a circle, when you show him how

Avoids touching hot objects, like a stove, when you warn her

Movement/Physical Development

Strings items together, like large beads or macaroni

Puts on some clothes by himself, like loose pants or a jacket

Uses a fork

Selected “not sure”? Watch for these milestones over the next week or two. Try some things with your child that gives him/her the chance to show the milestone. If you’re still not seeing the milestone, see the steps below.

Selected “not yet” or have other concerns or questions about your child’s development? Talk with your child’s doctor, teacher and/or another trusted provider. Share the checklist and any questions or concerns you might have. Ask about developmental screening. It’s recommended for all children. If you, the doctor, teacher, or other provider is still concerned after screening, ask to be connected with (1) a specialist who can learn more about your child AND (2) with services and other supports that may help. Visit www.cdc.gov/Concerned for more information.

– Share the checklist with your child’s healthcare provider, early educator, WIC Clinic, or other care providers by FORWARDING the email you receive.
– Be sure to add your child’s name and birthdate (if needed) when forwarding the checklist so your provider can identify it as your child’s.