Enrollment
694
Arizona · 2024-25 NCES data
Other / mixed grade configuration · Chandler, AZ
Federal NCES profile for Robert and Danell Tarwater Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 31/100.
The verdict
Robert and Danell Tarwater Elementary earns 31/100 on the Resource Investment Index, with class sizes near the Arizona median. It is also more racially and ethnically mixed than most Arizona schools.
Robert and Danell Tarwater Elementary has class sizes near the Arizona median. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Robert and Danell Tarwater Elementary ranks #8 of 44 schools in Chandler, AZ.
NCES ID 040187001676 Verify on NCES CCD record →
Enrollment
694
Arizona · 2024-25 NCES data
Teachers (FTE)
43.0
Federal CCD staff survey
Students per teacher
16.1:1
vs 17:1 Arizona avg
-5% vs state
Free-lunch eligible
13.0%
vs 48.3% Arizona avg
-73% vs state
How Robert and Danell Tarwater Elementary compares with Arizona and U.S. medians
At or below state median
16.1:1 - 0.9 below the Arizona state median of 17:1, indicating smaller average class loads than typical schools in the state.
Robert and Danell Tarwater Elementary is a lower-poverty, mid-sized combined-grade school in Chandler, Arizona, enrolling 694 students.
At 16.1:1, its student-teacher ratio sits close to the Arizona median, within a few percentage points of the 17:1 state norm, neither notably crowded nor notably small.
Comparatively few students face economic hardship here, 13.0% free-meal eligibility runs 73% below the Arizona average.
Enrollment of 694 puts it in the larger third of Arizona schools by headcount.
Its Resource Investment Index sits near the middle of the pack among 2,064 scored Arizona schools.
Against 230 statewide peers matched on enrollment and economic need, it ranks mid-pack at #131.
Its student body is led by White (46%) and Hispanic or Latino (23%), more mixed than most schools in the state (diversity index 71/100).
Counselor availability sits well past the ASCA benchmark, roughly 347 students sharing each counselor, though short of the most stretched campuses.
Chronic absenteeism is elevated: 28.8% 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.
Among Chandler's public schools, it stands alongside Primavera - Online (6,378 students): Robert and Danell Tarwater Elementary is smaller than that campus by headcount.
Chandler Unified District #80 (4242) also operates Hamilton High School (3,444 students) and Chandler High School (3,179 students) alongside Robert and Danell Tarwater Elementary.
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
Robert and Danell Tarwater Elementary on the metrics families compare, against Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.1:1 | ▼ 5% | 17:1 | 15.7:1 |
| Free-lunch eligible | 13.0% | ▼ 73% | 48.3% | 51.7% |
| Enrollment | 694 | top 21% | - | - |
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: White at 45.7% of enrollment.
Simpson diversity index - at 70.6, Robert and Danell Tarwater Elementary is more mixed than the Arizona school average of 47.2.
District-wide per-pupil expenditure for Chandler Unified District #80 (4242), which includes Robert and Danell Tarwater Elementary.
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 | Similar economic need | Higher S:T ratio |
| Chandler High School | Larger | Higher economic need | Similar S:T ratio |
| Basha High School | Larger | Similar economic need | Higher S:T ratio |
| Dr. Camille Casteel High School | Larger | Similar economic need | Higher S:T ratio |
| Perry High School | Larger | Similar economic need | Similar S:T ratio |
Comparisons are relative to Robert and Danell Tarwater Elementary's own figures; each column derives from NCES Common Core of Data.
1 comparable other schools (grades Mixed) serving the same city.
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 Robert and Danell Tarwater Elementary'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.
Robert and Danell Tarwater Elementary has 694 students enrolled. It is a public school in Chandler, AZ.
The student-teacher ratio at Robert and Danell Tarwater Elementary is 16.1:1, which is 5% lower than the Arizona average of 17:1 and 3% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
13.0% of students at Robert and Danell Tarwater Elementary are eligible for free lunch, compared to the Arizona average of 48.3%.
The largest demographic group at Robert and Danell Tarwater Elementary is White at 45.7% of enrollment, in Chandler, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.6/100.
Robert and Danell Tarwater Elementary has a Resource Investment Index of 31/100 (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, Robert and Danell Tarwater Elementary ranks #8 of 44 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 schools in Chandler on the city page.
Robert and Danell Tarwater Elementary earns 31/100 on the Resource Investment Index, with class sizes near the Arizona median. It is also more racially and ethnically mixed than most 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.
Besides Robert and Danell Tarwater Elementary, 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, “Robert and Danell Tarwater Elementary, 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/robert-and-danell-tarwater-elementary-az
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