New YorkSchoolsWILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL

WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL

PublicRegular
STONY BROOK, New York · THREE VILLAGE CENTRAL SCHOOL DISTRICT
Students514enrolled
SCHOOL SNAPSHOT
Students514
Grade Span
Student:Teacher13.9:1
Free/Reduced Lunch20%
Title INo
SectorPublic

Enrollment

How many students attend, and how this has changed over time.

Current enrollment
514
Grade span
School level
Primary
vs 2019
+46 (+9.6%)

Enrollment history

479
2019
455
2020
470
2021
511
2022
514
2023
525
2024

Source: NCES Common Core of Data, 20192024.

Size context

Typical enrollment by school level.

  • Elementary schools in the US typically enroll 400–650 students.
  • Middle schools typically enroll 500–800 students.
  • High schools typically enroll 700–2,000 students, with larger urban schools exceeding 3,000.