11 states and DC require school attendance to begin at age 5, Maryland among them. That is as early as anywhere in the country requires it.
Maryland is one of 17 states and DC that require kindergarten attendance outright; in most of the country it is optional.
Starting early in Maryland
A local board may admit a 4-year-old who demonstrates capabilities warranting early admission.
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 Maryland kindergarten cutoff?
Children must turn 5 on or before September 1.
Who sets the kindergarten cutoff in Maryland?
Maryland sets one entrance date statewide, so it's the same in every district. The rule lives in Md. Code Regs. 13A.08.01.02.
Can a child start kindergarten early in Maryland?
A local board may admit a 4-year-old who demonstrates capabilities warranting early admission.
At what age is school required in Maryland?
In Maryland, school attendance is compulsory from age 5 to age 18. Maryland is one of the states that require kindergarten attendance itself — not just that it be offered.
Is kindergarten mandatory in Maryland?
Yes — Maryland requires kindergarten attendance, not just that it be offered. School attendance is compulsory from age 5 to age 18.
Legal basis: Md. Code Regs. 13A.08.01.02. 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).