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ARDSLEY HIGH SCHOOL
School pathway
Test scores
NYS Assessments 2024-25 . % Proficient (Level 3 + Level 4)What this means: On the NYS Assessments, New York's statewide test, about 99 of every 100 students at this school read and write at grade level and about 76 of 100 do math at grade level. Across all New York schools, those numbers are about 58 and 57. Reading and writing scores are up about 1 points since 2023, while math scores are down about 19 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 88% of students here test proficient in math and reading, compared with the roughly 69% typical for New York schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among New York's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About ARDSLEY HIGH SCHOOL
As a mid-sized high school in ARDSLEY, New York, ARDSLEY HIGH SCHOOL works with 755 students from grades 9 through 12, run under ARDSLEY UNION FREE SCHOOL DISTRICT.
Within ARDSLEY UNION FREE SCHOOL DISTRICT, which oversees 3 schools and 2,325 students, ARDSLEY HIGH SCHOOL is one campus in the system.
Looking at the student body, ARDSLEY HIGH SCHOOL shows that the most-represented group is White (52%), with the rest of the student body spread across multiple groups. Beyond that, the school reports 22% Asian, 17% Hispanic, 5% multiracial, 4% Black. That composition is broadly in line with Westchester County as a whole.
On the income-and-resources front, The school employs 76 full-time-equivalent teachers, for a student-teacher ratio near 9.9:1. That figure is tighter than the state norm's 11.0:1 average. Roughly 16% of students at ARDSLEY HIGH SCHOOL qualify for free or reduced-price lunch, a commonly cited indicator of low-income enrollment. By comparison, Westchester County runs at roughly 38%, so the school's eligibility rate is somewhat below the surrounding baseline.
On a demographically-adjusted basis, ARDSLEY HIGH 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 88.0%.
Around the school, community-level numbers for Westchester County indicate median household income runs about $118,976, 53% of adults hold a bachelor's degree or higher, and the poverty rate sits near 6%. Across Westchester County's 255 public schools (combined enrollment of about 140,968 students), ARDSLEY HIGH SCHOOL is one campus in the mix.
Nearest neighbor: CONCORD ROAD ELEMENTARY SCHOOL, around 0.5 miles off. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts ARDSLEY HIGH SCHOOL at 1st of 7; the average score across the group is 77.0%.
ARDSLEY HIGH SCHOOL operates from a residential location.
Looking at the recent track record. Over the past 7-year window, the student count ticked up 12%: 677 students in 2018 compared to 755 in 2025. White enrollment moved from 65% to 52% across the same window. The student-to-teacher ratio fell from 11.3:1 in 2018 to 9.9:1 today.
In the discussion threads here, the page collects discussion, questions, and updates around fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.
Westchester County at a glance
View full county profileQuick facts
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