State guide · Iowa · 2026–27
What grade is my kid in Iowa?
Children must turn 5 on or before September 15.
Calculate for your child
The Iowa rule in detail
| Kindergarten cutoff | Turn 5 by September 15 |
|---|---|
| Who sets it | Set statewide |
| Legal basis | Iowa Code § 282.3 |
| School required from | Age 6 to age 16 |
| Kindergarten mandatory? | No — kindergarten is optional |
How Iowa compares
Iowa is the only place in the country using a September 15 kindergarten cutoff. 38 have an earlier cutoff and 6 have a later one, so a child born the same day can land a full grade apart depending on where they live.
28 states require school attendance to begin at age 6, Iowa among them. 11 states and DC start compulsory schooling earlier.
Like most of the country, Iowa does not mandate kindergarten — only 17 states and DC do.
Starting early in Iowa
A school board may require a greater age before a child begins kindergarten.
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 Iowa kindergarten cutoff?
Children must turn 5 on or before September 15.
Who sets the kindergarten cutoff in Iowa?
Iowa sets one entrance date statewide, so it's the same in every district. The rule lives in Iowa Code § 282.3.
Can a child start kindergarten early in Iowa?
A school board may require a greater age before a child begins kindergarten.
At what age is school required in Iowa?
In Iowa, school attendance is compulsory from age 6 to age 16. Iowa does not require kindergarten attendance; compulsory schooling starts at age 6.
Is kindergarten mandatory in Iowa?
No — kindergarten is optional in Iowa. School attendance is compulsory from age 6 to age 16.
Grade by age in Iowa — 2026–27
Source
Legal basis: Iowa Code § 282.3. 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).
Iowa Dept. of Education — verify cutoff with your local school district before relying on this page for enrollment.
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