Arlington High School is a public high school in the Arlington Central School District located in LaGrange, New York, United States, on Route 55. It was established in the early 1900s, and was granted the charter for a six-years school in 1926.
Serving 2,472 students in grades 9-12, Arlington High School ranks in the top 20% of all schools in New York for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).
The percentage of students achieving proficiency in math is 83% (which is higher than the New York state average of 52%). The percentage of students achieving proficiency in reading/language arts is 59% (which is higher than the New York state average of 49%).
The student-teacher ratio of 14:1 is higher than the New York state level of 11:1.
Minority enrollment is 43% of the student body (majority Hispanic), which is lower than the New York state average of 61% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 2,472 students
- Student-Teacher Ratio: 14:1
- Minority Enrollment: 43%
- Graduation Rate: 93% (Top 30% in NY)
- Overall Testing Rank: Top 20%
- Math Proficiency: 83% (Top 10%)
- Reading Proficiency: 59% (Top 30%)
- Science Proficiency: 96% (Top 5%)
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Arlington High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Overall Rank
Math Proficiency
Science Proficiency
School Overview
Arlington High School's student population of 2,472 students has declined by 8% over five school years.
The teacher population of 172 teachers has declined by 11% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
2,472 students
Total Classroom Teachers
172 teachers
Year Founded
1924
Colors
Maroon, Gold
School Rankings
Arlington High School ranks within the top 20% of all 4,346 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Arlington High School is 0.61, which is less than the diversity score at state average of 0.73. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#744 out of 4346 schools
(Top 20%)
(Top 20%)
Math Test Scores (% Proficient)
83%
52%
Reading/Language Arts Test Scores (% Proficient)
59%
49%
Science Test Scores (% Proficient)
96%
78%
Student-Teacher Ratio
14:1
11:1
American Indian
n/a
1%
Asian
4%
10%
Hispanic
24%
31%
Black
10%
15%
White
57%
39%
Hawaiian
n/a
n/a
Two or more races
5%
4%
All Ethnic Groups
Graduation Rate
93%
87%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
28%
55%
Eligible for Reduced Lunch
3%
2%
School Statewide Testing
School District Name
Arlington Central School District
Source: National Center for Education Statistics (NCES), NY Dept. of Education
School Notes
- School Mascot: Admiral Al
Frequently Asked Questions
What is Arlington High School's ranking?
Arlington High School is ranked #744 out of 4,346 schools, which ranks it among the top 20% of public schools in New York.
What schools are Arlington High School often compared to?
Arlington High Schoolis often viewed alongside schools like John Jay Senior High School, Millbrook High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
83% of students have achieved math proficiency (compared to the 52% NY state average), while 59% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Arlington High School?
The graduation rate of Arlington High School is 93%, which is higher than the New York state average of 87%.
How many students attend Arlington High School?
2,472 students attend Arlington High School.
What is the racial composition of the student body?
57% of Arlington High School students are White, 24% of students are Hispanic, 10% of students are Black, 5% of students are Two or more races, and 4% of students are Asian.
What is the student-teacher ratio of Arlington High School?
Arlington High School has a student ration of 14:1, which is higher than the New York state average of 11:1.
What grades does Arlington High School offer ?
Arlington High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Arlington High School part of?
Arlington High School is part of Arlington Central School District.
School Reviews
2 10/10/2025
Not very happy with the LARGE SIZE of school and that it has about 3,200 students in it with grades from 9-12. Seems VERY OVERWHELMING for students coming from a middle school.Not satisfied at all!!!!!!
5 10/10/2025
Loved everything about this school
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