Massachusetts has 323 regular public school districts across 14 counties, enrolling 867,740 students in 2024–25. Massachusetts has no single statewide kindergarten cutoff, so the entry date is set district by district — see the Massachusetts kindergarten cutoff.
The largest is Boston in Suffolk County (46,094 students). Middlesex County has the most districts, 55. In 1 of the 14 counties, only one district has its office. 10 have a full county directory page, linked below; every other district is listed by name in the table.
Massachusetts counties and their districts
School districts in Massachusetts by county, 2026–27
Each district draws its own attendance boundaries, and a district can cross county lines, so the county your home is in narrows it down but does not settle it. The district office or its website can confirm which school serves your address. Kindergarten registration is also handled by the district, not the state.
