Enrollment
278
Michigan · 2024-25 NCES data
High school (grades 9-12) · Ypsilanti, MI
Arbor Preparatory High School
Federal NCES profile for Arbor Preparatory High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 28/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 260098908273Charter school
👥 S:T ratio 34
📚 AP courses 45
🌟 Gifted program 30
🎓 Counselors 31
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Arbor Preparatory High School earns 28/100 on the Resource Investment Index, with class sizes near the Michigan median. It is also more racially and ethnically mixed than most Michigan schools.
- #5 of 5
- high schools in Ypsilanti · Resource Index
- 28
- Resource Index · Lower
- 16.4:1
- students per teacher
- 49.6%
- free-lunch eligible
Arbor Preparatory High School has class sizes near the Michigan median. Computed live against every Michigan school reporting to NCES.
By Resource Investment Index, Arbor Preparatory High School ranks #5 of 5 high schools in Ypsilanti, MI.
School address
District: Arbor Preparatory High School · Michigan
NCES ID 260098908273 Verify on NCES CCD record →
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
16.4:1
vs 17.5:1 Michigan avg
-6% vs state
Free-lunch eligible
49.6%
vs 54.3% Michigan avg
-9% vs state
Student-teacher ratio in context
How Arbor Preparatory High School compares with Michigan and U.S. medians
What stands out at Arbor Preparatory High School
Arbor Preparatory High School is a mid-sized charter high school in Ypsilanti, Michigan, enrolling 278 students.
At 16.4:1, its student-teacher ratio sits close to the Michigan median, within a few percentage points of the 17.5:1 state norm, neither notably crowded nor notably small.
Its free-meal eligibility rate of 49.6% lands close to the Michigan typical range, neither a high- nor low-need campus by this measure.
With 278 students, its enrollment sits close to the Michigan median campus size.
Its Resource Investment Index lands in the lower third of 3,375 scored Michigan schools.
Against 565 statewide peers matched on enrollment and economic need, it ranks mid-pack at #380.
Its student body is led by African American (50%) and White (20%), more mixed than most schools in the state (diversity index 67/100).
On the academic-pipeline side it reports 9 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 348 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 62.9% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Arbor Preparatory High School spends $16,857 per pupil, 25% above the Michigan average, a better-resourced district than most.
Discipline events run high: 74 in- and out-of-school suspensions were reported for 278 students in the 2021-22 Civil Rights Data Collection.
Among Ypsilanti's high schools, it stands alongside Actech High School (459 students): Arbor Preparatory High School is smaller than that campus by headcount and runs leaner classes (16.4:1 vs 17.7:1).
Arbor Preparatory High School is a single-school charter district, so Arbor Preparatory High School operates independently rather than alongside district-mates.
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 Arbor Preparatory High School compares
Arbor Preparatory High School on the metrics families compare, against Michigan and U.S. means.
| Metric | This school | vs Michigan | Michigan avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.4:1 | ▼ 6% | 17.5:1 | 15.7:1 |
| Free-lunch eligible | 49.6% | ▼ 9% | 54.3% | 51.7% |
| Enrollment | 278 | top 63% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.4:1
Leaner classes than 35% of US schools, a middle-of-the-pack class size.
278
Bigger than 29% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
49.6%
free-lunch eligible
- 9% below the Michigan average of 54.3%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
16.4:1
students per teacher
- 6% below state mean
Top 46% in Michigan - lower ratio than 54% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
62.9%
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
$16,857
per pupil, district-wide
- above Michigan avg of $13,507
Close to the U.S. public-school average per-pupil spend.
Support staff
Counselors0.8 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 74 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 26.6 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
African American 50.4%
White 19.8%
Hispanic or Latino 15.1%
Two or More 11.5%
Asian 1.8%
American Indian / Alaska Native 1.4%
Largest group: African American at 50.4% of enrollment.
Student-body diversity index 67.0/100
Simpson diversity index - at 67.0, Arbor Preparatory High School is more mixed than the Michigan school average of 36.2.
Programs
AP courses offered 9
Funding & spending
District-wide per-pupil expenditure for Arbor Preparatory High School, which includes Arbor Preparatory High School.
$16,857
Per student
+25%
vs Michigan
Avg $13,507
+2%
vs U.S.
Avg $16,593
Revenue mix
Local 30.6%
State 57.7%
Federal 11.6%
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.
Similar high schools in Ypsilanti
4 comparable high schools (grades 9-12) serving the same city.
Actech High School
Standard public school
459 students 17.7:1 students per teacher
Washtenaw Alliance for Virtual Education
Alternative education program
386 students 27.6:1 students per teacher
Ypsilanti Stemm Middle College
Standard public school
108 students 6.8:1 students per teacher
Wsc Academy Ypsilanti Campus
Alternative education program
34 students 34:1 students per teacher
Similar high schools statewide
Matched by enrollment size and by staffing ratio across all of Michigan, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~278 students)
Next steps
Verify locally before acting on Arbor Preparatory High School's federal record.
- Compare Arbor Preparatory High School against another school. Compare schools
- Arbor Preparatory High School'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 Arbor Preparatory High School
How many students attend Arbor Preparatory High School?
Arbor Preparatory High School has 278 students enrolled. It is a high school in Ypsilanti, MI.
What is the student-teacher ratio at Arbor Preparatory High School?
The student-teacher ratio at Arbor Preparatory High School is 16.4:1, which is 6% lower than the Michigan average of 17.5:1 and 4% higher 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 Arbor Preparatory High School?
49.6% of students at Arbor Preparatory High School are eligible for free lunch, compared to the Michigan average of 54.3%.
What is the racial and ethnic makeup of Arbor Preparatory High School?
The largest demographic group at Arbor Preparatory High School is African American at 50.4% of enrollment, in Ypsilanti, MI. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.0/100.
What is the Resource Investment Index for Arbor Preparatory High School?
Arbor Preparatory High School has a Resource Investment Index of 28/100 (lower 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 Arbor Preparatory High School rank among high schools in Ypsilanti?
By Resource Investment Index, Arbor Preparatory High School ranks #5 of 5 high schools in Ypsilanti, MI. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Ypsilanti on the city page.
Is Arbor Preparatory High School a good school?
Arbor Preparatory High School earns 28/100 on the Resource Investment Index, with class sizes near the Michigan median. It is also more racially and ethnically mixed than most Michigan 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 Arbor Preparatory High School?
None; Arbor Preparatory High School is a single-school charter district, and Arbor Preparatory High School is its only campus.
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.