Enrollment
252
New York · 2024-25 NCES data
High school (grades 9-12) · Millbrook, NY
Millbrook High School
Federal NCES profile for Millbrook High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 361938005859
👥 S:T ratio 63
📚 AP courses 35
🌟 Gifted program 30
🎓 Counselors 75
📋 Attendance 12
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Millbrook High School earns 43/100 on the Resource Investment Index, with class sizes smaller than 79% of New York schools.
- #3 of 4
- public schools in Millbrook · Resource Index
- 43
- Resource Index · Typical
- 9.3:1
- small classes for New York
- 31.7%
- free-lunch eligible
Millbrook High School has class sizes smaller than 79% of New York schools. Computed live against every New York school reporting to NCES.
By Resource Investment Index, Millbrook High School ranks #3 of 4 public schools in Millbrook, NY.
School address
District: Millbrook Central School District · New York
NCES ID 361938005859 Verify on NCES CCD record →
Teachers (FTE)
27.0
Federal CCD staff survey
Students per teacher
9.3:1
vs 11.8:1 New York avg
-21% vs state
Free-lunch eligible
31.7%
vs 56.2% New York avg
-44% vs state
Student-teacher ratio in context
How Millbrook High School compares with New York and U.S. medians
What stands out at Millbrook High School
Millbrook High School is a mid-sized high school in Millbrook, New York, enrolling 252 students.
Class sizes run a bit leaner than typical: 9.3:1 puts it in the smaller third of New York schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 31.7% of students eligible for free meals.
Enrollment of 252 puts it in the smaller third of New York schools by headcount.
Its Resource Investment Index lands in the upper third of 4,801 scored New York schools.
Against 443 statewide peers matched on enrollment and economic need, it ranks mid-pack at #197.
Its student body is led by White (69%) and Hispanic or Latino (23%) (diversity index 47/100).
On the academic-pipeline side it reports 7 Advanced Placement courses.
Counselor coverage is strong, about 126 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 35.3% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Millbrook Central School District also operates Millbrook Middle School (168 students) and Elm Drive Elementary School (167 students) alongside Millbrook High School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Millbrook High School compares
Millbrook High School on the metrics families compare, against New York and U.S. means.
| Metric | This school | vs New York | New York avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 9.3:1 | ▼ 21% | 11.8:1 | 15.7:1 |
| Free-lunch eligible | 31.7% | ▼ 44% | 56.2% | 51.7% |
| Enrollment | 252 | top 84% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
9.3:1
Leaner classes than 92% of US schools, among the more generously staffed nationally.
252
Bigger than 26% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
31.7%
free-lunch eligible
- 44% below the New York average of 56.2%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
9.3:1
students per teacher
- 21% below state mean
Top 21% in New York - lower ratio than 79% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
35.3%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$30,091
per pupil, district-wide
- above New York avg of $26,410
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors2.0 FTE
Per 126 students, the combined health-and-guidance staffing load for this school.
Discipline context
27
in-school suspensions + 8 out-of-school
Suspension rate: 10.7 per 100 students. Combined in-school and out-of-school rate: 13.9 per 100 students. Reported via the Civil Rights Data Collection.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 68.7%
Hispanic or Latino 23.0%
Two or More 3.6%
African American 3.2%
Asian 1.6%
Largest group: White at 68.7% of enrollment.
Student-body diversity index 47.3/100
Simpson diversity index - at 47.3, Millbrook High School is about as mixed as the New York school average of 45.5.
Programs
AP courses offered 7
Funding & spending
District-wide per-pupil expenditure for Millbrook Central School District, which includes Millbrook High School.
$30,091
Per student
+14%
vs New York
Avg $26,410
+81%
vs U.S.
Avg $16,593
Revenue mix
Local 73.3%
State 21.2%
Federal 5.5%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Millbrook High School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Millbrook Middle School | Smaller | Similar economic need | Lower S:T ratio |
| Elm Drive Elementary School | Smaller | Lower economic need | Higher S:T ratio |
| Alden Place Elementary School | Smaller | Similar economic need | Similar S:T ratio |
Comparisons are relative to Millbrook High School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 168
- Students per teacher
- 7:1
- Resource Index
- 48/100
- Enrollment
- 167
- Students per teacher
- 11.9:1
- Resource Index
- 31/100
- Enrollment
- 157
- Students per teacher
- 8.7:1
- Resource Index
- 54/100
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of New York, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~252 students)
Next steps
Verify locally before acting on Millbrook High School's federal record.
- Compare Millbrook High School against another school. Compare schools
- Millbrook Central School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Millbrook High School
How many students attend Millbrook High School?
Millbrook High School has 252 students enrolled. It is a high school in Millbrook, NY.
What is the student-teacher ratio at Millbrook High School?
The student-teacher ratio at Millbrook High School is 9.3:1, which is 21% lower than the New York average of 11.8:1 and 41% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Millbrook High School?
31.7% of students at Millbrook High School are eligible for free lunch, compared to the New York average of 56.2%.
What is the racial and ethnic makeup of Millbrook High School?
The largest demographic group at Millbrook High School is White at 68.7% of enrollment, in Millbrook, NY.
What is the Resource Investment Index for Millbrook High School?
Millbrook High School has a Resource Investment Index of 43/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Millbrook High School rank among public schools in Millbrook?
By Resource Investment Index, Millbrook High School ranks #3 of 4 public schools in Millbrook, NY. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Millbrook on the city page.
Is Millbrook High School a good school?
Millbrook High School earns 43/100 on the Resource Investment Index, with class sizes smaller than 79% of New York schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Millbrook Central School District?
Besides Millbrook High School, Millbrook Central School District also operates Millbrook Middle School (168 students), Elm Drive Elementary School (167 students), and Alden Place Elementary School (157 students). See the Millbrook Central School District district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.