What Age Do Kids Start Kindergarten by State (State-by-State Chart)

What age do kids start kindergarten by state comes down to two numbers: the entrance age and the compulsory school age.

Most states set entrance at 5 by a date between August 1 and October 1. The table below lists both for every state.

What Age Do Kids Start Kindergarten by State: Full List

Here is the kindergarten entrance age and compulsory school age for all 50 states and Washington, D.C. "Entrance age" is the age a child must reach by a set date to enroll.

"Compulsory age" is the age at which school attendance becomes legally required, which is not always the same year as kindergarten entrance.

State	Kindergarten Entrance Age & Cutoff	Compulsory School Age
Alabama	5 by September 1	6
Alaska	5 by September 1	7
Arizona	5 by August 31	6
Arkansas	5 by August 1	5
California	5 by September 1	6
Colorado	5 by October 1	6
Connecticut	5 by January 1	5
Delaware	5 by August 31	5
District of Columbia	5 by September 30	5
Florida	5 by September 1	6
Georgia	5 by September 1	6
Hawaii	5 by July 31	5
Idaho	5 by September 1	7
Illinois	5 by September 1	6
Indiana	5 by August 1	7
Iowa	5 by September 15	6
Kansas	5 by August 31	7
Kentucky	5 by July 31	6
Louisiana	5 by September 30	7
Maine	5 by October 15	6
Maryland	5 by September 1	5
Massachusetts	Set by local district	6
Michigan	5 by September 1	6
Minnesota	5 by September 1	7
Mississippi	5 by September 1	6
Missouri	5 by July 31	7
Montana	5 by September 10	7
Nebraska	5 by September 30	6
Nevada	5 by September 30	7
New Hampshire	Not set by statute	6
New Jersey	Set by local district	6
New Mexico	5 by September 1	5
New York	Set by local district	6
North Carolina	5 by August 31	7
North Dakota	5 by July 31	7
Ohio	Set by local district	6
Oklahoma	5 by September 1	5
Oregon	5 by September 1	6
Pennsylvania	Set by local district	6
Rhode Island	5 by September 1	5
South Carolina	5 by September 1	5
South Dakota	5 by September 1	5
Tennessee	5 by August 15	6
Texas	5 by September 1	6
Utah	5 by September 1	6
Vermont	5, district may adjust	6
Virginia	5 by September 30	5
Washington	5 by August 31	8
West Virginia	5 by August 31	6
Wisconsin	5 by September 1	6
Wyoming	5 by September 15	7

A handful of states, including New Jersey, New York, Ohio, and Pennsylvania, hand the exact cutoff date to the local school district rather than setting one statewide.

Those are covered in more detail further down. States occasionally shift these dates through legislation, so treat this table as a starting point and confirm the current figure with your district before enrollment.

Kindergarten Entrance Age vs. Compulsory School Age

These two numbers get confused constantly, and it's easy to see why. A state can let a child start kindergarten at 5 while not legally requiring any school attendance until 6, 7, or even later.

Data from the OECD shows that most children across member countries are enrolled in school by age 6, with many systems allowing some flexibility in the exact starting age, a pattern that lines up with how U.S. states handle the gap between kindergarten entrance and compulsory attendance.

What Kindergarten Entrance Age Means

This is the age a child must reach, by the state's specified date, to be eligible to enroll in kindergarten. It's an eligibility marker, not a mandate.

According to Wikipedia, kindergarten is generally described as an educational approach built around play, singing, and social interaction that eases a child's transition from home to a formal school setting, which is part of why states treat the entrance age as a readiness marker rather than a legal requirement.

A child who turns 5 after the cutoff date usually has to wait until the following school year.

What Compulsory School Age Means

This is the age at which a parent is legally required to have their child enrolled in some form of schooling. In several states that age is higher than the kindergarten entrance age.

Washington is the clearest example: kindergarten entrance is 5, but compulsory attendance doesn't kick in until 8.

Why These Two Ages Are Different

In practice, this gap exists because kindergarten entrance and compulsory attendance are governed by separate statutes in most states, often passed at different times.

School registrars commonly report that this is the single most misunderstood part of enrollment paperwork.

A family can legally choose to skip kindergarten and enroll a child directly in first grade once they meet the compulsory age, as long as any district readiness requirements are met.

Is Kindergarten Required in Every State?

No. Kindergarten attendance itself is only mandatory in some states. In states without that requirement, a child can go straight into first grade once they reach the compulsory school age, provided they can demonstrate readiness where a district requires it.

A few states, Louisiana among them, allow a readiness screening as an alternative path into first grade for a child who hasn't attended kindergarten.

District enrollment offices generally advise checking this directly, since it affects paperwork and any placement testing involved.

States Where the School District Sets the Age

What "Set by Local District" Means

In a small group of states, the legislature doesn't fix a single statewide cutoff date. Instead, it sets broad boundaries, usually an age range, and leaves the district to pick the exact date within those limits.

States That Use This Approach

New Jersey allows districts to admit children aged 4 and 5, with a required cutoff date after October 1. New York requires students to be between 4 and 6.

Ohio lets districts adopt August 1 instead of the more common September 30 cutoff. Pennsylvania sets a minimum age of 4 years and 7 months before the first day of the school year.

In each of these states, the only reliable way to get the exact date is to contact the district directly, since it can differ from one town to the next within the same state.

What Happens If a Child Misses the Kindergarten Cutoff

Waiting a Year

Some families choose to hold a child back a year even when the child technically qualifies for enrollment.

This is a personal decision based on a child's individual development, not something states track or require.

Enrollment staff commonly report that this comes up most often for children born within a few weeks of the cutoff date.

Early Entrance Requests

A smaller number of states allow a child who misses the cutoff by a narrow margin to enroll anyway, usually through an assessment or a waiver request submitted to the district.

This isn't universal, and where it exists, it's handled case by case rather than as a guaranteed option.

Full-Day and Half-Day Kindergarten Rules by State

Separate from the age question, states also differ on whether districts must offer full-day kindergarten, half-day kindergarten, or either. Some states require full-day programs.

Others require half-day. A number require districts to offer at least one of the two, leaving the choice to the district's board.

This matters for scheduling purposes even after the age question is settled, and it's worth checking alongside the entrance date rather than assuming a full school day is standard everywhere.

How to Confirm Your Child's Exact Start Date

The table above reflects the most recently reported state-level requirements, but the final word always sits with the local school district.

State departments of education publish current cutoff dates on their websites, and district enrollment offices can confirm how that date applies locally, particularly in states that leave the decision to the district.

Checking both is the most reliable way to avoid a surprise close to enrollment season.

Conclusion

Kindergarten start age depends on two separate numbers: entrance age and compulsory school age, both of which vary by state and sometimes by district.

Use the table above to find your state, then confirm the exact date with your local school.

Frequently Asked Questions

What age do kids start kindergarten by state on average?

Most states set the entrance age at 5, with a cutoff date falling between August 1 and October 1. A few states use later dates, such as October 15 in Maine, or leave the decision to the local district.

What state has the earliest kindergarten cutoff date?

Connecticut's cutoff is January 1, meaning a child can be nearly 6 and still be entering their first year of kindergarten, which is later in the calendar year than most other states.

What state has the latest compulsory school age?

Washington sets compulsory school age at 8, the highest in the country, even though kindergarten entrance there is 5.

Can a child skip kindergarten and start in first grade?

In states that don't mandate kindergarten attendance, yes, provided the child meets the compulsory school age and any district readiness requirement. Some districts require a screening before placement.

Do all states require kindergarten attendance?

No. Kindergarten attendance is only legally required in a portion of states. In the rest, it's available but optional, with first grade as the required entry point once a child reaches compulsory age.