SchoolDataLookup

WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL

Regular School · EAST SETAUKET, NY

WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL is a regular school school in EAST SETAUKET, New York, serving grades PK–06 with 525 students enrolled (SY 2024-2025). The student-teacher ratio is 13:1.

Level
Elementary
Grades
PK – 06
Enrollment
525
Teachers (FTE)
40.2
Student–Teacher Ratio
13:1
Status
Open
Lunch Program Participation
Yes participating without using any Provision or the CEO

Student Demographics (SY 2024-2025)

Race / Ethnicity Students Share
White 289 55%
Asian 128 24%
Hispanic/Latino 74 14%
Two or more races 28 5%
Black or African American 6 1%
Total enrollment 525 268M / 257F

English Language Learners: 50 (10% of enrollment) · SY 2021–22

Academic Performance (SY 2021-2022)

Metric This School State Avg Tested
Math Proficiency 65-69% 55.2% 129
Science Proficiency >=80% — 30

Source: EDFacts, SY 2020–2021. Suppressed values (e.g. <=10%) indicate fewer than the minimum reportable threshold.

Stanford Achievement Estimate

Pooled score across SY 2009–2022 (grades 3–8), expressed in grade levels relative to the national average. Positive = above average.

Overall (Math + ELA)
+0.77 grade levels
Math
-0.18 grade levels

Programs & Discipline

Gifted & Talented
None offered
Out-of-School Suspensions
0
Chronically Absent
25
4.8% of enrollment · SY 2019–20

Source: Civil Rights Data Collection (CRDC), Office for Civil Rights & EDFacts.

Lunch Program (SY 2024-2025)

Category Students % of School
Total enrollment (est.) 525 100%

Contact & Location

PO BOX 9050

EAST SETAUKET, NY 11733

Phone: (631)730-4300

http://www.threevillagecsd.org

District

THREE VILLAGE CENTRAL SCHOOL DISTRICT

Per-pupil expenditure: $41,081

District enrollment: 5,692

Other Schools in District

Related Data

NCES ID

362820003810

Data sources: NCES CCD SY 2024-2025 (directory, staff, lunch), EDFacts SY 2020-21 (assessments), CRDC SY 2021-22 (programs & discipline), SEDA v6.0 (achievement estimates). Updated annually. NCES CCD