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SCHOOL COMMUNITY·MOUNT SINAI UNION FREE SCHOOL DISTRICT·NCES 362004001829

MOUNT SINAI ELEMENTARY SCHOOL

118 N COUNTRY RD, MOUNT SINAI, NY 11766 · (631) 870-2600 · Suffolk County
GRADES KG–04ELEMENTARY21-SUBURBREGULAR SCHOOL657 STUDENTS
Enrollment
657
Elementary
DISTRICT 661 · STATE 443
Student : Teacher
12.4:1
53 FTE teachers
DISTRICT 11.6:1 · STATE 12.8:1
Free / Reduced Lunch
16%
103 students
DISTRICT 13% · STATE 58%
Community
1
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade
Kindergarten
116
Grade 1
151
Grade 2
114
Grade 3
144
Grade 4
131
Ungraded
1
Student demographics
White
47372%
DISTRICT 75% · STATE 39%
Hispanic
12319%
DISTRICT 15% · STATE 31%
Black
122%
DISTRICT 1% · STATE 16%
Asian
365%
DISTRICT 7% · STATE 10%
Two+
122%
DISTRICT 2% · STATE 4%
Pacific Islander
10%
DISTRICT 0% · STATE 0%
Student head counts by race/ethnicity from federal NCES enrollment data. Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
32650%
Female
33150%

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Test scores

NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)
English Language Arts
63.0%
NY avg 58.3% . -3.0pp since 2023
Math
74.0%
NY avg 57.4% . -6.0pp since 2023
Source: NYS Assessments. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
70.9%
composite math + reading, all grades
Predicted
69.2%
based on NY schools with similar FRL share
Beats by
+1.6pp
above demographic expectation
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

7-year change

SY 2017-18 vs SY 2024-25
Enrollment
657
-74 (-10%) vs 2017
Student : Teacher
12.4:1
was 15.6:1
% White
72%
was 82%
% Hispanic
19%
was 11%
% Black
2%
was 1%
% Asian
5%
was 5%
Source: NCES Common Core of Data

About MOUNT SINAI ELEMENTARY SCHOOL

MOUNT SINAI ELEMENTARY SCHOOL operates as a mid-tier primary school in MOUNT SINAI, New York, run under MOUNT SINAI UNION FREE SCHOOL DISTRICT. Current enrollment sits at 657 students spanning grades K through 4. Enrollment runs roughly 48% above the state mean of about 443.

MOUNT SINAI UNION FREE SCHOOL DISTRICT comprises 3 schools with combined enrollment of 1,984 students; MOUNT SINAI ELEMENTARY SCHOOL is among them.

For racial and ethnic makeup, MOUNT SINAI ELEMENTARY SCHOOL shows that the largest single group is White, at 72% of enrollment; the rest reads as 19% Hispanic, 5% Asian.

Looking at school resources, MOUNT SINAI ELEMENTARY SCHOOL records 53 full-time-equivalent teachers, putting the student-to-teacher ratio at about 12.4:1. That tracks the state average closely. About 16% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Suffolk County runs at roughly 39%, so the school's eligibility rate is below the surrounding baseline.

After controlling for student poverty, MOUNT SINAI ELEMENTARY SCHOOL sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 69.2%; this one delivers 70.9%.

In the surrounding community, census data for Suffolk County shows median household earnings sit near $130,686, about 40% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 4%. In all, Suffolk County runs 343 public schools (combined enrollment of about 222,439 students), of which MOUNT SINAI ELEMENTARY SCHOOL is one.

MOUNT SINAI MIDDLE SCHOOL is the nearest neighboring public school, about 0.2 miles from this campus. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts MOUNT SINAI ELEMENTARY SCHOOL at 4th of 9; the average score across the group is 64.5%.

MOUNT SINAI ELEMENTARY SCHOOL operates from a commuter-belt location.

Looking at the recent track record. MOUNT SINAI ELEMENTARY SCHOOL's enrollment has edged down 10% since 2018, when it stood at 731 (now 657). White enrollment moved from 82% to 72% across the same window. The student-to-teacher ratio narrowed from 15.6:1 in 2018 to 12.4:1 today.

On allk12, recent activity here tends to focus on fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.

Suffolk County at a glance

View full county profile
Population
1,530,146
Census ACS
Median income
$130,686
Household, ACS
Bachelor's+
40%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
343
222,439 students

Quick facts

School name
MOUNT SINAI ELEMENTARY SCHOOL
District
MOUNT SINAI UNION FREE SCHOOL DISTRICT
Address
118 N COUNTRY RD, MOUNT SINAI, NY 11766
Phone
(631) 870-2600
County
Suffolk County
Level
Elementary
Grade range
KG–04
Total enrollment
657
Teachers (FTE)
53
Student–teacher ratio
12.4:1
Free/Reduced lunch
103 (16%)
Locale
21-Suburb: Large
NCES ID
362004001829
Charter school
No
Virtual school
No

Related schools

Other schools in MOUNT SINAI UNION FREE SCHOOL DISTRICT
Other schools in MOUNT SINAI
Nearby schools

Frequently asked questions

About MOUNT SINAI ELEMENTARY SCHOOL
How many students attend MOUNT SINAI ELEMENTARY SCHOOL?
MOUNT SINAI ELEMENTARY SCHOOL enrolls approximately 657 students in grades KG-04.
What grades does MOUNT SINAI ELEMENTARY SCHOOL serve?
MOUNT SINAI ELEMENTARY SCHOOL serves grades KG-04.
How many students per teacher at MOUNT SINAI ELEMENTARY SCHOOL?
Approximately 12.4:1 students per teacher at MOUNT SINAI ELEMENTARY SCHOOL.
How diverse is MOUNT SINAI ELEMENTARY SCHOOL?
MOUNT SINAI ELEMENTARY SCHOOL reports a student body of 72% White, 19% Hispanic, 2% Black, 5% Asian, 2% Two or more.
Is MOUNT SINAI ELEMENTARY SCHOOL public or private?
MOUNT SINAI ELEMENTARY SCHOOL is a public K-12 school, overseen by MOUNT SINAI UNION FREE SCHOOL DISTRICT.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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