WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL

www.threevillagecsd.org

525 Students

Elementary School Pre-K - 6th

School Overview

William Sidney Mount Elementary School is a public school located in Stony Brook, New York, serving as part of the Three Village Central School District. Named after the celebrated 19th-century American painter who lived in the area, the school is situated in a community known for its strong ties to history, art, and the nearby Stony Brook University. The school typically serves students from kindergarten through sixth grade, focusing on providing a comprehensive academic foundation while fostering a supportive social environment.

As a member of the Three Village Central School District, the school is highly regarded for its commitment to academic excellence and student engagement. It places a strong emphasis on literacy, mathematics, and science, while also offering a variety of extracurricular opportunities designed to develop well-rounded students. The school benefits from a dedicated faculty and active parent involvement, maintaining a reputation for high standards and a nurturing atmosphere that prepares its students for the transition to the district’s middle and high school programs.

525

Total Students

40.2

Full-Time Teachers

13.0

Student/Teacher Ratio

20.4%

Free/Reduced Lunch

Student Demographics

Student Demographics Data Table

Student Demographics for WILLIAM SIDNEY MOUNT ELEMENTARY SCHOOL
Demographic	Student Count
White	289
Hispanic	74
Black	6
Asian	128
Two or More	28

White
289 (55.0%)
Asian
128 (24.4%)
Hispanic
74 (14.1%)
Two or More
28 (5.3%)
Black
6 (1.1%)

School Location

School Details

Status:	Open
School Level:	Elementary School
School Type:	Regular School
Charter Status:*	Public Non-Charter
Virtual Instruction:	No virtual instruction
Shared Time Status:	No
District:	THREE VILLAGE CENTRAL SCHOOL DISTRICT
Phone:	(631)730-4300
Website:	http://www.threevillagecsd.org
Grade Range:	Pre-K - 6th
Total Students:	525
Full-Time Teachers (FTE):	40.2
Pupil/Teacher Ratio:	13.0
NSLP Participation:¹	Yes participating without using any Provision or the CEO
Qualified Free Lunch:	102
Qualified Reduced Lunch:	5

* Charter Schools: A public charter school is a publicly funded school that operates independently under a legislative contract (or "charter") with a state, school district, or designated authorizing entity. Charters grant these schools greater operational flexibility over curriculum, staffing, and budgeting in exchange for strict accountability to achieve performance standards established in their charter agreement.

¹ National School Lunch Program (NSLP): The National School Lunch Program is a federally assisted meal program operating in public and nonprofit private schools. It provides nutritionally balanced, low-cost or free lunches to eligible children each school day based on household income thresholds or community eligibility options (CEO).

Title I Program Overview: Title I, Part A of the Elementary and Secondary Education Act (ESEA) allocates federal financial assistance to local educational agencies and public schools with high percentages of children from low-income families to help ensure that all children meet challenging state academic standards.

Grades Taught

Pre-Kindergarten 39

Kindergarten 61

Grade 1 61

Grade 2 61

Grade 3 74

Grade 4 81

Grade 5 75

Grade 6 73