Enrollment
418
Arizona · 2024-25 NCES data
Middle school (grades 6-8) · Phoenix, AZ
Osborn Middle School
Federal NCES profile for Osborn Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 040567000461
👥 S:T ratio 48
🌟 Gifted program 70
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Osborn Middle School earns 39/100 on the Resource Investment Index, with class sizes smaller than 79% of Arizona schools.
- #4 of 24
- middle schools in Phoenix · Resource Index
- 39
- Resource Index · Typical
- 13.1:1
- small classes for Arizona
- 75.0%
- free-lunch eligible
Osborn Middle School has class sizes smaller than 79% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Osborn Middle School ranks #4 of 24 middle schools in Phoenix, AZ.
School address
District: Osborn Elementary District (4262) · Arizona
NCES ID 040567000461 Verify on NCES CCD record →
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
13.1:1
vs 17:1 Arizona avg
-23% vs state
Free-lunch eligible
75.0%
vs 48.3% Arizona avg
+55% vs state
Student-teacher ratio in context
How Osborn Middle School compares with Arizona and U.S. medians
What stands out at Osborn Middle School
Osborn Middle School is a high-poverty, mid-sized middle school in Phoenix, Arizona, enrolling 418 students.
Class sizes run a bit leaner than typical: 13.1:1 puts it in the smaller third of Arizona schools by student-teacher ratio.
Economic need runs somewhat above the state's typical profile, with 75.0% of students eligible for free meals.
With 418 students, its enrollment sits close to the Arizona median campus size.
Its Resource Investment Index lands in the upper third of 2,064 scored Arizona schools.
Against 274 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #56.
Its student body is led by Hispanic or Latino (64%) and African American (13%) (diversity index 55/100).
Chronic absenteeism is elevated: 72.5% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 22.8% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 127 in- and out-of-school suspensions were reported for 418 students in the 2021-22 Civil Rights Data Collection.
Among Phoenix's middle schools, it stands alongside Sonoran Trails Middle School (615 students): Osborn Middle School is smaller than that campus by headcount and runs leaner classes (13.1:1 vs 17.6:1).
Osborn Elementary District (4262) also operates Encanto School (603 students) and Longview Elementary School (483 students) alongside Osborn Middle 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 Osborn Middle School compares
Osborn Middle School on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.1:1 | ▼ 23% | 17:1 | 15.7:1 |
| Free-lunch eligible | 75.0% | ▲ 55% | 48.3% | 51.7% |
| Enrollment | 418 | top 49% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.1:1
Leaner classes than 66% of US schools, among the more generously staffed nationally.
418
Bigger than 50% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
75.0%
free-lunch eligible
- 55% above the Arizona average of 48.3%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
13.1:1
students per teacher
- 23% below state mean
Top 21% in Arizona - lower ratio than 79% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
72.5%
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
$12,098
per pupil, district-wide
- below Arizona avg of $13,145
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
42
in-school suspensions + 85 out-of-school
Suspension rate: 10.0 per 100 students. Combined in-school and out-of-school rate: 30.4 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
Hispanic or Latino 64.1%
African American 12.9%
White 11.5%
American Indian / Alaska Native 6.5%
Asian 2.6%
Two or More 2.2%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 64.1% of enrollment.
Student-body diversity index 55.4/100
Simpson diversity index - at 55.4, Osborn Middle School is more mixed than the Arizona school average of 47.2.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Osborn Elementary District (4262), which includes Osborn Middle School.
$12,098
Per student
-8%
vs Arizona
Avg $13,145
-27%
vs U.S.
Avg $16,593
Revenue mix
Local 50.7%
State 26.4%
Federal 22.8%
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 Osborn Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Encanto School | Larger | Lower economic need | Higher S:T ratio |
| Longview Elementary School | Similar size | Similar economic need | Higher S:T ratio |
| Solano School | Similar size | Similar economic need | Higher S:T ratio |
| Clarendon School | Similar size | Similar economic need | Higher S:T ratio |
| Montecito Community School | Smaller | Similar economic need | Higher S:T ratio |
Comparisons are relative to Osborn Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 603
- Students per teacher
- 17.7:1
- Resource Index
- 20/100
- Enrollment
- 483
- Students per teacher
- 17.9:1
- Resource Index
- 19/100
- Enrollment
- 466
- Students per teacher
- 20.3:1
- Resource Index
- 16/100
- Enrollment
- 420
- Students per teacher
- 15.6:1
- Resource Index
- 23/100
- Enrollment
- 128
- Students per teacher
- 18.3:1
- Resource Index
- 50/100
Similar middle schools in Phoenix
3 comparable middle schools (grades 6-8) serving the same city.
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Arizona, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~418 students)
Similar student-teacher ratio (~13.1:1)
Next steps
Verify locally before acting on Osborn Middle School's federal record.
- Compare Osborn Middle School against another school. Compare schools
- Osborn Elementary District (4262)'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 Osborn Middle School
How many students attend Osborn Middle School?
Osborn Middle School has 418 students enrolled. It is a middle school in Phoenix, AZ.
What is the student-teacher ratio at Osborn Middle School?
The student-teacher ratio at Osborn Middle School is 13.1:1, which is 23% lower than the Arizona average of 17:1 and 17% 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 Osborn Middle School?
75.0% of students at Osborn Middle School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Osborn Middle School?
The largest demographic group at Osborn Middle School is Hispanic or Latino at 64.1% of enrollment, in Phoenix, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 55.4/100.
What is the Resource Investment Index for Osborn Middle School?
Osborn Middle School has a Resource Investment Index of 39/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Osborn Middle School rank among middle schools in Phoenix?
By Resource Investment Index, Osborn Middle School ranks #4 of 24 middle schools in Phoenix, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Phoenix on the city page.
Is Osborn Middle School a good school?
Osborn Middle School earns 39/100 on the Resource Investment Index, with class sizes smaller than 79% of Arizona 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 Osborn Elementary District (4262)?
Besides Osborn Middle School, Osborn Elementary District (4262) also operates Encanto School (603 students), Longview Elementary School (483 students), and Solano School (466 students). See the Osborn Elementary District (4262) 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.