📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (NY State tests 2023–24), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 55 Rated Districts in Nassau County, NY
Sorted by rating, then state percentile
Best School Districts in Nassau County, New York (2026)
This page lists the 55 public school districts headquartered in Nassau County, New York that have a SchoolDistrictFinder rating, scored using NY State tests 2023–24 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in New York, which is how the 1–10 rating is set. Ratings are not comparable with districts in other states.
Districts are placed in the county of their NCES directory listing. A district's boundaries can cross county lines, and a home in Nassau County may be served by a district headquartered next door — search your address or zip code to confirm.
Frequently Asked Questions
What is the best-rated school district in Nassau County, New York? ▼
Among the 55 rated districts in Nassau County, New York, 4 share the top position at 10/10 (Excellent), 99th percentile of New York districts on NY State tests 2023–24 reading and math proficiency: Great Neck Union Free School District (Great Neck); Jericho Union Free School District (Jericho); Manhasset Union Free School District (Manhasset); Syosset Central School District (Syosset).
How are these rankings calculated? ▼
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments (NY State tests 2023–24), percentile-ranked against all rated districts in New York and converted to a 1–10 scale. Full methodology here.