Enrollment
772
Arizona · 2024-25 NCES data
Middle school (grades 6-8) · Chandler, AZ
Federal NCES profile for John M Andersen Jr High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 26/100.
The verdict
John M Andersen Jr High School earns 26/100 on the Resource Investment Index, with class sizes near the Arizona median.
John M Andersen Jr High School has class sizes near the Arizona median. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, John M Andersen Jr High School ranks #3 of 5 middle schools in Chandler, AZ.
NCES ID 040187001400 Verify on NCES CCD record →
Enrollment
772
Arizona · 2024-25 NCES data
Teachers (FTE)
41.0
Federal CCD staff survey
Students per teacher
18.8:1
vs 17:1 Arizona avg
+11% vs state
Free-lunch eligible
48.9%
vs 48.3% Arizona avg
+1% vs state
How John M Andersen Jr High School compares with Arizona and U.S. medians
Slightly above state median
18.8:1 - 1.8 above the Arizona state median of 17:1, indicating larger average class loads than typical schools in the state.
John M Andersen Jr High School is a mid-sized middle school in Chandler, Arizona, enrolling 772 students.
Class loads run somewhat heavier than typical: 18.8:1 puts it in the larger third of Arizona schools by student-teacher ratio.
Its free-meal eligibility rate of 48.9% lands close to the Arizona typical range, neither a high- nor low-need campus by this measure.
Enrollment of 772 puts it in the larger third of Arizona schools by headcount.
Its Resource Investment Index lands in the lower third of 2,064 scored Arizona schools.
Against 279 statewide peers matched on enrollment and economic need, it ranks mid-pack at #153.
Its student body is led by Hispanic or Latino (59%) and White (19%) (diversity index 61/100).
Counselor coverage runs a bit thin, about 257 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 60.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
The surrounding Chandler Unified District #80 (4242) spends $9,696 per pupil, 26% below the Arizona average, a leaner-resourced district than most.
Chandler Unified District #80 (4242) also operates Hamilton High School (3,444 students) and Chandler High School (3,179 students) alongside John M Andersen Jr 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
John M Andersen Jr High 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 | 18.8:1 | ▲ 11% | 17:1 | 15.7:1 |
| Free-lunch eligible | 48.9% | ▲ 1% | 48.3% | 51.7% |
| Enrollment | 772 | top 17% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: Hispanic or Latino at 58.7% of enrollment.
Simpson diversity index - at 60.6, John M Andersen Jr High School is more mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Chandler Unified District #80 (4242), which includes John M Andersen Jr High School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Hamilton High School | Larger | Lower economic need | Similar S:T ratio |
| Chandler High School | Larger | Lower economic need | Lower S:T ratio |
| Basha High School | Larger | Lower economic need | Higher S:T ratio |
| Dr. Camille Casteel High School | Larger | Lower economic need | Similar S:T ratio |
| Perry High School | Larger | Lower economic need | Lower S:T ratio |
Comparisons are relative to John M Andersen Jr High School's own figures; each column derives from NCES Common Core of Data.
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.
Next steps
Verify locally before acting on John M Andersen Jr High School's federal record.
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.
John M Andersen Jr High School has 772 students enrolled. It is a middle school in Chandler, AZ.
The student-teacher ratio at John M Andersen Jr High School is 18.8:1, which is 11% higher than the Arizona average of 17:1 and 20% higher than the national average of 15.7:1.
48.9% of students at John M Andersen Jr High School are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at John M Andersen Jr High School is Hispanic or Latino at 58.7% of enrollment, in Chandler, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 60.6/100.
John M Andersen Jr High School has a Resource Investment Index of 26/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, John M Andersen Jr High School ranks #3 of 5 middle schools in Chandler, 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 Chandler on the city page.
John M Andersen Jr High School earns 26/100 on the Resource Investment Index, with class sizes near the Arizona median. 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.
Besides John M Andersen Jr High School, Chandler Unified District #80 (4242) also operates Hamilton High School (3,444 students), Chandler High School (3,179 students), and Basha High School (2,826 students). See the Chandler Unified District #80 (4242) district page for the complete list.
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.
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PlainSchools, “John M Andersen Jr High School, Chandler AZ.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/john-m-andersen-jr-high-school-az
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