State guide · Illinois · 2025–26

What grade is my kid in Illinois?

Illinois uses a September 1 cutoff for kindergarten.

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Most US states use a September 1 cutoff. Year-stamped for the 2025–26 school year.

Frequently asked

What's the Illinois kindergarten cutoff?
Children must turn 5 by September 1.
Can a child start kindergarten in Illinois a year early?
Most districts allow early entry only by formal assessment. Talk to your local school office before the spring enrollment window.
What is "redshirting" and is it common in Illinois?
Redshirting is intentionally delaying kindergarten by a year, usually for summer-birthday boys. It's most common in states with summer or early-fall cutoffs.

Grade by age in Illinois — 2025–26

Grade by age in Illinois2025–26
AgeTypical gradeNotes
4Not in school yetStarts K in fall of the following school year.
5Kindergarten
61st grade
72nd grade
83rd grade
94th grade
105th grade
116th grade
127th grade
138th grade
149th grade
1510th grade
1611th grade
1712th grade

Source

Illinois State Board of Education — verify cutoff with your local school district before relying on this page for enrollment.
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