5 states use the same August 1 cutoff: Arkansas, Indiana, Kentucky, Nevada and Wyoming. 4 have an earlier cutoff and 35 have a later one, so a child born the same day can land a full grade apart depending on where they live.
10 states require school attendance to begin at age 7, Missouri among them. 39 states and DC start compulsory schooling earlier.
Like most of the country, Missouri does not mandate kindergarten — only 17 states and DC do.
Starting early in Missouri
A child who began kindergarten in a metropolitan district may enroll in a new district without meeting the age requirement.
Early entrance is decided locally even where state law allows it, so ask your district office what evidence they expect and when the window closes.
Frequently asked
What's the Missouri kindergarten cutoff?
Children must turn 5 before August 1.
Who sets the kindergarten cutoff in Missouri?
Missouri sets one entrance date statewide, so it's the same in every district. The rule lives in Mo. Rev. Stat. § 160.054.
Can a child start kindergarten early in Missouri?
A child who began kindergarten in a metropolitan district may enroll in a new district without meeting the age requirement.
At what age is school required in Missouri?
In Missouri, school attendance is compulsory from age 7 to age 17. Missouri does not require kindergarten attendance; compulsory schooling starts at age 7.
Is kindergarten mandatory in Missouri?
No — kindergarten is optional in Missouri. School attendance is compulsory from age 7 to age 17.
Legal basis: Mo. Rev. Stat. § 160.054. Cutoff, early-entrance and compulsory-age details cross-checked against the Education Commission of the States 50-State Comparisons (K-3 policies and compulsory school age).
Missouri DESE — verify cutoff with your local school district before relying on this page for enrollment.
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