Enrollment
256
Arizona · 2024-25 NCES data
Other / mixed grade configuration · Duncan, AZ
Duncan Elementary
Federal NCES profile for Duncan Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 17/100.
2024-25 NCES dataOther / mixed grade configurationNCES 040260000195
👥 S:T ratio 21
🌟 Gifted program 30
📋 Attendance 1
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Duncan Elementary earns 17/100 on the Resource Investment Index, with class sizes larger than 74% of Arizona schools.
- 17
- Resource Index · Lower
- 19.7:1
- large classes for Arizona
- 41.8%
- free-lunch eligible
- 256
- students enrolled
Duncan Elementary has class sizes larger than 74% of Arizona schools. Computed live against every Arizona school reporting to NCES.
School address
District: Duncan Unified District (4228) · Arizona
NCES ID 040260000195 Verify on NCES CCD record →
Teachers (FTE)
13.0
Federal CCD staff survey
Students per teacher
19.7:1
vs 17:1 Arizona avg
+16% vs state
Free-lunch eligible
41.8%
vs 48.3% Arizona avg
-13% vs state
Student-teacher ratio in context
How Duncan Elementary compares with Arizona and U.S. medians
What stands out at Duncan Elementary
Duncan Elementary is a mid-sized combined-grade school in Duncan, Arizona, enrolling 256 students.
Class loads run somewhat heavier than typical: 19.7:1 puts it in the larger third of Arizona schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 41.8% of students eligible for free meals.
Enrollment of 256 puts it in the smaller third of Arizona schools by headcount.
Its Resource Investment Index lands in the lower third of 2,064 scored Arizona schools.
Among 122 similarly sized, similarly resourced-need Arizona schools statewide, it ranks #108, in the lower tier once campus size and economic need are matched.
Its student body is led by White (70%) and Hispanic or Latino (25%) (diversity index 44/100).
Chronic absenteeism is elevated: 39.8% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 22.2% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Its district, Duncan Unified District (4228), also runs Duncan High School (113 students).
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 Duncan Elementary compares
Duncan 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 | 19.7:1 | ▲ 16% | 17:1 | 15.7:1 |
| Free-lunch eligible | 41.8% | ▼ 13% | 48.3% | 51.7% |
| Enrollment | 256 | top 66% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
19.7:1
Leaner classes than 17% of US schools, heavier class loads than most.
256
Bigger than 26% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
41.8%
free-lunch eligible
- 13% below the Arizona average of 48.3%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
19.7:1
students per teacher
- 16% above state mean
Top 74% in Arizona - lower ratio than 26% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
39.8%
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
$11,608
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
0
in-school suspensions + 7 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 2.7 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
White 70.3%
Hispanic or Latino 25.0%
Two or More 3.1%
American Indian / Alaska Native 1.2%
African American 0.4%
Largest group: White at 70.3% of enrollment.
Student-body diversity index 44.2/100
Simpson diversity index - at 44.2, Duncan Elementary is less mixed than the Arizona school average of 47.2.
Programs
Funding & spending
District-wide per-pupil expenditure for Duncan Unified District (4228), which includes Duncan Elementary.
$11,608
Per student
-12%
vs Arizona
Avg $13,145
-30%
vs U.S.
Avg $16,593
Revenue mix
Local 66.1%
State 11.8%
Federal 22.2%
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.
How Duncan Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Duncan High School | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Duncan Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 113
- Students per teacher
- 16.1:1
- Resource Index
- 29/100
Similar other 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 (~256 students)
Similar student-teacher ratio (~19.7:1)
Next steps
Verify locally before acting on Duncan Elementary's federal record.
- Compare Duncan Elementary against another school. Compare schools
- Duncan Unified District (4228)'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 Duncan Elementary
How many students attend Duncan Elementary?
Duncan Elementary has 256 students enrolled. It is a public school in Duncan, AZ.
What is the student-teacher ratio at Duncan Elementary?
The student-teacher ratio at Duncan Elementary is 19.7:1, which is 16% higher than the Arizona average of 17:1 and 25% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Duncan Elementary?
41.8% of students at Duncan Elementary are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Duncan Elementary?
The largest demographic group at Duncan Elementary is White at 70.3% of enrollment, in Duncan, AZ.
What is the Resource Investment Index for Duncan Elementary?
Duncan Elementary has a Resource Investment Index of 17/100 (lower 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).
Is Duncan Elementary a good school?
Duncan Elementary earns 17/100 on the Resource Investment Index, with class sizes larger than 74% 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 Duncan Unified District (4228)?
Besides Duncan Elementary, Duncan Unified District (4228) also operates Duncan High School (113 students). See the Duncan Unified District (4228) 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.