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PrivateElementaryGrades K–8Catholic
16 Harrison Ave, East Islip, NY 11730 · (631) 581-3423
Islip’s School Grade A− better than 78% of New York school districts
Students
331
Students per teacher
16:1
Setting
Suburb
Grades
K–8
What stands out about St. Mary School
- Private school: it doesn’t take New York’s state tests
Location
Directions ↗














16 Harrison Ave, East Islip
Students
Enrollment by grade
Kindergarten41
Grade 132
Grade 230
Grade 339
Grade 438
Grade 531
Grade 646
Grade 745
Grade 829
Who goes here
White 80%Two or more races 11%Black 7%Asian 2%Hispanic <1%Native Hawaiian/Pacific Islander <1%
As reported to NCES, share of students with a reported race or ethnicity.
Parents talk
Questions and answers about St. Mary School from Islip families.
School facts: U.S. Department of Education (NCES), 2023–2024 school year. Map: © OpenStreetMap contributors.