- Enrollment
- 659
- Students per teacher
- 15.3:1
- Resource Index
- 20/100
Middle school (grades 6-8) · Phoenix, AZ
Isaac Middle School
Federal NCES profile for Isaac Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 19/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 040396000315
👥 S:T ratio 41
🌟 Gifted program 30
🎓 Counselors 5
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Isaac Middle School earns 19/100 on the Resource Investment Index, with class sizes near the Arizona median. It is also less racially and ethnically mixed than most Arizona schools.
- #19 of 24
- middle schools in Phoenix · Resource Index
- 19
- Resource Index · Lower
- 14.8:1
- students per teacher
- 78.9%
- free-lunch eligible
Isaac Middle School has class sizes near the Arizona median. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Isaac Middle School ranks #19 of 24 middle schools in Phoenix, AZ.
School address
District: Isaac Elementary District (4259) · Arizona
NCES ID 040396000315 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-59 students YoY
Isaac Middle School shrank from 546 students in 2022-23 to 487 in 2023-24 (-10.8%).
Teacher FTE lost 32.0 → 30.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-59 students YoY 040396000315 · Phoenix, AZ Middle · SMALL · TRAD
474 enr · 14.8:1 · 78.9% lunch · RII 19
Nearest enrollment peer: Pueblo Del Sol Middle School (659 students)
Isaac Middle School shrank from 546 students in 2022-23 to 487 in 2023-24 (-10.8%). Teacher FTE lost 32.0 → 30.0 across the same CCD years. Read with this school → · District book → · Arizona schools → · Find another →
Isaac Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Pueblo Del Sol
Pueblo Del Sol Middle School
659 students
- Morris K. Udal
Morris K. Udall Escuela De Bellas Artes
553 students
- Alta E Butler
Alta E Butler School
541 students
- J B Sutton Ele
J B Sutton Elementary School
522 students
- This school
Isaac Middle School
474 students
- Mitchell Eleme
Mitchell Elementary School
414 students
What this shows Isaac Middle School reports 474 students on the CCD universe file.
How Isaac Middle School compares
Isaac Middle School is a shrinking campus on CCD: ratios and free-lunch share vs Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.8:1 | ▼ 13% | 17:1 | 15.7:1 |
| Free-lunch eligible | 78.9% | ▲ 63% | 48.3% | 51.7% |
| Enrollment | 474 | top 42% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.8:1
Leaner classes than 49% of US schools, a middle-of-the-pack class size.
474
Bigger than 58% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
78.9%
free-lunch eligible
- 63% above the Arizona average of 48.3%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
14.8:1
students per teacher
- 13% below state mean
Top 34% in Arizona - lower ratio than 66% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
80.6%
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
$15,074
per pupil, district-wide
- above Arizona avg of $13,502
Somewhat 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.
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.
Student-body diversity index 9.4/100
Simpson diversity index - at 9.4, Isaac Middle School is less mixed than the Arizona school average of 47.2.
Programs
District finance for Isaac Elementary District (4259) reports $15,074 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Isaac Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Pueblo Del Sol Middle School | Larger | Similar economic need | Similar S:T ratio |
| Morris K. Udall Escuela De Bellas Artes | Similar size | Similar economic need | Higher S:T ratio |
| Alta E Butler School | Similar size | Similar economic need | Similar S:T ratio |
| J B Sutton Elementary School | Similar size | Similar economic need | Similar S:T ratio |
| Mitchell Elementary School | Similar size | Lower economic need | Higher S:T ratio |
Comparisons are relative to Isaac Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 553
- Students per teacher
- 18.4:1
- Resource Index
- 14/100
- Enrollment
- 541
- Students per teacher
- 15.9:1
- Resource Index
- 17/100
- Enrollment
- 522
- Students per teacher
- 15.8:1
- Resource Index
- 17/100
- Enrollment
- 414
- Students per teacher
- 16.6:1
- Resource Index
- 16/100
Similar middle schools in Phoenix
3 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~474 students)
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. CCD year-over-year: 546 (2022-23) → 487 (2023-24), down 59.
What is the student-teacher ratio at Isaac Middle School?
The student-teacher ratio at Isaac Middle School is 14.8:1, which is 13% lower than the Arizona average of 17:1 and 6% 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 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% of enrollment, in Phoenix, AZ.
What is the Resource Investment Index for Isaac Middle School?
Isaac Middle School has a Resource Investment Index of 19/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Isaac Middle School rank among middle schools in Phoenix?
By Resource Investment Index, Isaac Middle School ranks #19 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.
What other schools are in Isaac Elementary District (4259)?
Besides Isaac Middle School, Isaac Elementary District (4259) also operates Pueblo Del Sol Middle School (659 students), Morris K. Udall Escuela De Bellas Artes (553 students), and Alta E Butler School (541 students). See the Isaac Elementary District (4259) district page for the complete list.