Millbrook High School is a part of the Millbrook Central School System. It is located in Millbrook, Dutchess County, New York. The address of the school is 70 Church Street, Millbrook, NY. Built between 2005 and 2006, and opening in September 2006, it is the newest school in the Millbrook Central School District.
Serving 252 students in grades 9-12, Millbrook High School ranks in the top 50% of all schools in New York for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 40-49% (which is lower than the New York state average of 52%). The percentage of students achieving proficiency in reading/language arts is ≥80% (which is higher than the New York state average of 49%).
The student-teacher ratio of 9:1 is lower than the New York state level of 11:1.
Minority enrollment is 31% 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: 252 students
- Student-Teacher Ratio: 9:1
- Minority Enrollment: 31%
- Graduation Rate: ≥95% (Top 10% in NY)
- Overall Testing Rank: Top 50%
- Math Proficiency: 40-49% (Btm 50%)
- Reading Proficiency: ≥80% (Top 10%)
- Science Proficiency: ≥95% (Top 5%)
- Source: National Center for Education Statistics (NCES), NY Dept. of Education
Top Rankings
Millbrook High School ranks among the top 20% of public schools in New York for:
Category
Attribute
Reading/Language Arts Proficiency
Science Proficiency
Graduation Rate
Community Size
School Overview
Millbrook High School's student population of 252 students has declined by 14% over five school years.
The teacher population of 27 teachers has declined by 10% over five school years.
Grades Offered
Grades 9-12
(Supplemental Virtual)
(Supplemental Virtual)
Total Students
252 students
Total Classroom Teachers
27 teachers
Year Founded
2006
School Calendar
School Rankings
Millbrook High School ranks within the top 50% of all 4,346 schools in New York (based off of combined math and reading proficiency testing data).
The diversity score of Millbrook High School is 0.47, 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
#1482 out of 4346 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
40-49%
52%
Reading/Language Arts Test Scores (% Proficient)
≥80%
49%
Science Test Scores (% Proficient)
≥95%
78%
Student-Teacher Ratio
9:1
11:1
American Indian
n/a
1%
Asian
2%
10%
Hispanic
23%
31%
Black
3%
15%
White
69%
39%
Hawaiian
n/a
n/a
Two or more races
3%
4%
All Ethnic Groups
Graduation Rate
≥95%
87%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
26%
55%
Eligible for Reduced Lunch
2%
2%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), NY Dept. of Education
School Notes
- School Mascot: The Millbrook Blazer
Frequently Asked Questions
What is Millbrook High School's ranking?
Millbrook High School is ranked #1482 out of 4,346 schools, which ranks it among the top 50% of public schools in New York.
What schools are Millbrook High School often compared to?
Millbrook High Schoolis often viewed alongside schools like Arlington High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
40-49% of students have achieved math proficiency (compared to the 52% NY state average), while ≥80% of students have achieved reading proficiency (compared to the 49% NY state average).
What is the graduation rate of Millbrook High School?
The graduation rate of Millbrook High School is 95%, which is higher than the New York state average of 87%.
How many students attend Millbrook High School?
252 students attend Millbrook High School.
What is the racial composition of the student body?
69% of Millbrook High School students are White, 23% of students are Hispanic, 3% of students are Black, 3% of students are Two or more races, and 2% of students are Asian.
What is the student-teacher ratio of Millbrook High School?
Millbrook High School has a student ration of 9:1, which is lower than the New York state average of 11:1.
What grades does Millbrook High School offer ?
Millbrook High School offers enrollment in grades 9-12 (Supplemental Virtual).
What school district is Millbrook High School part of?
Millbrook High School is part of Millbrook Central School District.
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