CDC Milestone Checklist (Birth to 5 Years)
The CDC Learn the Signs. Act Early program revised its developmental milestone checklists in 2022. The milestones listed below are what 75% of children can do by each age, the threshold the CDC uses with the AAP to flag developmental concerns earlier. If your child has not reached a milestone by the listed age, talk to your pediatrician and ask about a referral for developmental evaluation. Early intervention is most effective before age three.
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About this checklist
Type
Checklist
Items
88
Category
Baby & Family
Updated
May 27, 2026
This checklist is a starting template, compiled from publicly available best-practice sources and reviewed regularly by our editors. Treat the items as a guide and adapt them to your situation. You can edit, add, remove, or reorder anything when you open the list in our builder.
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