School District · New York
William Floyd Union Free School District
📍 Mastic, NY · Suffolk County · NCES LEAID 3618690
Kindergarten – 12th
Grade Span
District Contact & InformationSource: NCES CCD 2024–25
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Grades Served
Kindergarten – 12th
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District Mailing Address
240 MASTIC BEACH RD, MASTIC BEACH, NY 11951
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NCES District ID (LEAID)
3618690
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District Type
Public School District
Zip Codes Served by William Floyd Union Free School District4 zip codes
Frequently Asked Questions
What zip codes are in William Floyd Union Free School District?▼
William Floyd Union Free School District serves 4 zip codes: 11950, 11951, 11955, 11967. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is William Floyd Union Free School District rated?▼
William Floyd Union Free School District has an overall rating of 4 out of 10 (Below Average), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 31st percentile among New York school districts. Ratings are percentile-ranked within New York only and are not comparable across states.
How many students attend William Floyd Union Free School District?▼
The NCES Common Core of Data directory reports enrollment of 9,166 students across 9 schools for William Floyd Union Free School District.
What grades does William Floyd Union Free School District serve?▼
William Floyd Union Free School District is listed in the NCES directory as serving grades Kindergarten – 12th.
How do I contact William Floyd Union Free School District?▼
You can reach William Floyd Union Free School District by phone at (631)874-1201 or by mail at 240 MASTIC BEACH RD, MASTIC BEACH, NY 11951. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.
About William Floyd Union Free School District
William Floyd Union Free School District is a public school district serving 4 zip codes in New York, primarily in Suffolk County. It carries an overall rating of 4/10 (Below Average), the 31st percentile among New York districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other New York districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.
District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can
be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your
assignment with the district office at (631)874-1201 before making a housing decision.