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NY Regular School High School

ROBERT M GRABLE JR MOUNT SINAI HIGH SCHOOL

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110 N COUNTRY RD, MOUNT SINAI, NY 11766 • Suffolk County
(631) 870-2800
Website

Student Enrollment & Staffing Overview

NCES 2024-2025
Total Students
710
Teachers (FTE)
65.0
Student-Teacher Ratio
10.9:1
FRPL Eligible
87
(12.3%)
National School Lunch Program (FRPL) Eligibility Total Eligible: 87 of 710 (12.3%)
Free Lunch: 86 (12.1%)
Reduced-Price: 1 (0.1%)
Paid / Not Eligible: 623 (87.7%)

Multi-Year Enrollment Trends & Growth (2020-2021 – 2024-2025)

0 500 1,000 2020-2021: 760 students 760 2020-2021 2021-2022: 763 students 763 +0.4% 2021-2022 2022-2023: 720 students 720 -5.6% 2022-2023 2023-2024: 700 students 700 -2.8% 2023-2024 2024-2025: 710 students 710 +1.4% 2024-2025

Student Diversity Distribution

Demographic composition of enrolled students across racial & ethnic backgrounds.

NCES 2024-2025
White: 524 (73.8%) Hispanic / Latino: 100 (14.1%) Asian: 63 (8.9%) Two or More Races (Multiracial): 13 (1.8%) Black or African American: 9 (1.3%) Native Hawaiian / Pacific Islander: 1 (0.1%)
710 Students
White 524 73.8%
Hispanic / Latino 100 14.1%
Asian 63 8.9%
Two or More Races (Multiracial) 13 1.8%
Black or African American 9 1.3%
Native Hawaiian / Pacific Islander 1 0.1%

Grade-Level Enrollment Distribution

Distribution of student body across reported grade cohorts.

Total: 710 Students
Grade 10: 157 (22.1%) Grade 11: 161 (22.7%) Grade 12: 193 (27.2%) Grade 9: 194 (27.3%) Ungraded: 5 (0.7%)
710 Students
Grade 10 157 22.1%
Grade 11 161 22.7%
Grade 12 193 27.2%
Grade 9 194 27.3%
Ungraded 5 0.7%

Student Gender Distribution

Reported enrollment counts by gender cohort.

NCES 2024-2025
M
Male Students
359
50.6%
F
Female Students
351
49.4%