Enrollment
474
Arizona · 2024-25 NCES data
2024-25 NCES data Middle school (grades 6-8) NCES 040396000315
Isaac Middle School — Phoenix, AZ
Federal NCES profile for Isaac Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 17/100.
👥 Class size 32
🌟 Gifted program 30
🎓 Counselors 5
📋 Attendance 0
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Isaac Elementary District (4259) · Arizona
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
17.1:1
vs 17.7:1 Arizona avg
-3% vs state
Free-lunch eligible
78.9%
vs 48.3% Arizona avg
+63% vs state
Student-teacher ratio in context
How Isaac Middle School compares with Arizona and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Isaac Middle School reports 474 enrolled students to the National Center for Education Statistics (NCES) alongside 32.0 full-time-equivalent teachers, producing a 17.1:1 student-teacher ratio. That figure sits 3% below the Arizona state mean of 17.7:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 8% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 78.9% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 63% above the Arizona average and 52% above the national baseline. Counselor coverage works out to roughly 474 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 80.6% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Isaac Elementary District (4259) spends $15,054 per pupil district-wide, below the Arizona average of $15,070 and below the national average of $19,490. Revenue comes 28.1% from local sources (property taxes), 52.7% from the state, and 19.2% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 17/100 (F), calculated from 4 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Isaac Middle School compares
Cross-validating school-level NCES values against Arizona state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 17.1:1 | ▼ 3% | 17.7:1 | 15.9:1 |
| Free-lunch eligible | 78.9% | ▲ 63% | 48.3% | 51.8% |
| Enrollment | 474 | top 58% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
78.9%
free-lunch eligible
— 63% 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
17.1:1
students per teacher
— 3% below state mean
Top 48% in Arizona — lower ratio than 52% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
80.6%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$15,054
per pupil, district-wide
— below Arizona avg of $15,070
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 474 students — the combined health-and-guidance staffing load for this school.
Discipline context
59
in-school suspensions + 114 out-of-school
Suspension rate: 12.4 per 100 students. Combined in-school and out-of-school rate: 36.5 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 474 Top 58% in Arizona — larger than 42% of 2,186 state schools
Teachers (FTE) 32.0
Students per teacher 17.1:1 -3% vs state
Free-lunch eligible 78.9% +63% vs state
NCES ID 040396000315
Student demographics
Hispanic or Latino 95.1%
African American 3.2%
White 0.8%
Asian 0.4%
American Indian / Alaska Native 0.2%
Two or More 0.2%
Largest group: Hispanic or Latino at 95.1% of enrollment.
Programs & staff
Counselors (FTE) 1.0
Students per counselor 474:1
Discipline & special education
Chronically absent 80.6%
In-school suspensions 59
Out-of-school suspensions 114
Funding & spending
District-wide per-pupil expenditure for Isaac Elementary District (4259), which includes Isaac Middle School.
$15,054
Per student
0%
vs Arizona
Avg $15,070
-23%
vs U.S.
Avg $19,490
Revenue mix
Local 28.1%
State 52.7%
Federal 19.2%
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.
Other Schools in This District
- Enrollment
- 659
- Students per teacher
- 17.3:1
- Enrollment
- 553
- Students per teacher
- 18.9:1
- Enrollment
- 541
- Students per teacher
- 16.2:1
- Enrollment
- 522
- Students per teacher
- 16.5:1
- Enrollment
- 414
- Students per teacher
- 15.4:1
Similar middle schools in Phoenix
6 comparable middle schools (grades 6-8) serving the same city.
Mountain Trail Middle School
Standard public school
835 students 20:1 students per teacher
Palo Verde Middle School
Standard public school
797 students 16.4:1 students per teacher
Ingleside Middle School
Standard public school
789 students 18.1:1 students per teacher
Mountain Sky Middle School
Standard public school
672 students 17.8:1 students per teacher
Estrella Middle School
Standard public school
650 students 19.8:1 students per teacher
Greenway Middle School
Standard public school
646 students 16.8:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Isaac Middle School
How many students attend Isaac Middle School?
Isaac Middle School has 474 students enrolled. It is a middle school in PHOENIX, AZ.
What is the student-teacher ratio at Isaac Middle School?
The student-teacher ratio at Isaac Middle School is 17.1:1, which is 3% lower than the Arizona average of 17.7:1 and 8% higher than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Isaac Middle School?
78.9% of students at Isaac Middle School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Isaac Middle School?
The largest demographic group at Isaac Middle School is Hispanic or Latino at 95.1%. The school serves a diverse student body in PHOENIX, AZ.
What is the Resource Investment Index for Isaac Middle School?
Isaac Middle School has a Resource Investment Index of 17/100 (F) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.