Enrollment
432
Colorado · 2024-25 NCES data
Other / mixed grade configuration · Arvada, CO
Warder Elementary School
Federal NCES profile for Warder Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 45/100.
2024-25 NCES dataOther / mixed grade configurationNCES 080480000796
👥 S:T ratio 14
🌟 Gifted program 70
📋 Attendance 52
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Warder Elementary School earns 45/100 on the Resource Investment Index, with class sizes larger than 91% of Colorado schools.
- #5 of 15
- schools in Arvada · Resource Index
- 45
- Resource Index · Typical
- 21.6:1
- large classes for Colorado
- 20.4%
- free-lunch eligible
Warder Elementary School has class sizes larger than 91% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Warder Elementary School ranks #5 of 15 schools in Arvada, CO.
School address
District: Jefferson County School District No. R-1 · Colorado
NCES ID 080480000796 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
21.6:1
vs 16.6:1 Colorado avg
+30% vs state
Free-lunch eligible
20.4%
vs 38.5% Colorado avg
-47% vs state
Student-teacher ratio in context
How Warder Elementary School compares with Colorado and U.S. medians
What stands out at Warder Elementary School
Warder Elementary School is a mid-sized combined-grade school in Arvada, Colorado, enrolling 432 students.
Class loads run heavy: 21.6:1 is larger than about 91% of Colorado schools and 30% above the 16.6:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 20.4% of students eligible for free meals.
With 432 students, its enrollment sits close to the Colorado median campus size.
Its Resource Investment Index sits near the middle of the pack among 1,922 scored Colorado schools.
Against 401 statewide peers matched on enrollment and economic need, it ranks mid-pack at #184.
Its student body is led by White (72%) and Hispanic or Latino (22%) (diversity index 43/100).
Attendance runs somewhat below the norm, with 19.2% of students chronically absent per the 2021-22 civil-rights collection.
Jefferson County School District No. R-1 also operates Arvada West High School (1,923 students) and Ralston Valley Senior High School (1,875 students) alongside Warder Elementary 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
How Warder Elementary School compares
Warder Elementary School on the metrics families compare, against Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 21.6:1 | ▲ 30% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 20.4% | ▼ 47% | 38.5% | 51.7% |
| Enrollment | 432 | top 38% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
21.6:1
Leaner classes than 11% of US schools, heavier class loads than most.
432
Bigger than 52% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
20.4%
free-lunch eligible
- 47% below the Colorado average of 38.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
21.6:1
students per teacher
- 30% above state mean
Top 91% in Colorado - lower ratio than 9% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
19.2%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$13,124
per pupil, district-wide
- below Colorado avg of $16,273
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
4
in-school suspensions + 3 out-of-school
Suspension rate: 0.9 per 100 students. Combined in-school and out-of-school rate: 1.6 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 71.8%
Hispanic or Latino 22.0%
Two or More 5.3%
Asian 0.5%
African American 0.2%
American Indian / Alaska Native 0.2%
Largest group: White at 71.8% of enrollment.
Student-body diversity index 43.3/100
Simpson diversity index - at 43.3, Warder Elementary School is less mixed than the Colorado school average of 47.1.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Jefferson County School District No. R-1, which includes Warder Elementary School.
$13,124
Per student
-19%
vs Colorado
Avg $16,273
-21%
vs U.S.
Avg $16,593
Revenue mix
Local 55.3%
State 36.9%
Federal 7.8%
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 Warder Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arvada West High School | Larger | Similar economic need | Similar S:T ratio |
| Ralston Valley Senior High School | Larger | Lower economic need | Similar S:T ratio |
| Chatfield High School | Larger | Similar economic need | Lower S:T ratio |
| Lakewood High School | Larger | Higher economic need | Lower S:T ratio |
| Columbine High School | Larger | Similar economic need | Lower S:T ratio |
Comparisons are relative to Warder Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,923
- Students per teacher
- 21.4:1
- Resource Index
- 32/100
- Enrollment
- 1,875
- Students per teacher
- 21.6:1
- Resource Index
- 35/100
- Enrollment
- 1,808
- Students per teacher
- 20.1:1
- Resource Index
- 34/100
- Enrollment
- 1,735
- Students per teacher
- 17.4:1
- Resource Index
- 52/100
- Enrollment
- 1,710
- Students per teacher
- 19.9:1
- Resource Index
- 31/100
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of Colorado, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~432 students)
Next steps
Verify locally before acting on Warder Elementary School's federal record.
- Compare Warder Elementary School against another school. Compare schools
- Jefferson County School District No. R-1'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 Warder Elementary School
How many students attend Warder Elementary School?
Warder Elementary School has 432 students enrolled. It is a public school in Arvada, CO.
What is the student-teacher ratio at Warder Elementary School?
The student-teacher ratio at Warder Elementary School is 21.6:1, which is 30% higher than the Colorado average of 16.6:1 and 38% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Warder Elementary School?
20.4% of students at Warder Elementary School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Warder Elementary School?
The largest demographic group at Warder Elementary School is White at 71.8% of enrollment, in Arvada, CO.
What is the Resource Investment Index for Warder Elementary School?
Warder Elementary School has a Resource Investment Index of 45/100 (typical 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).
How does Warder Elementary School rank among schools in Arvada?
By Resource Investment Index, Warder Elementary School ranks #5 of 15 schools in Arvada, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Arvada on the city page.
Is Warder Elementary School a good school?
Warder Elementary School earns 45/100 on the Resource Investment Index, with class sizes larger than 91% of Colorado 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 Jefferson County School District No. R-1?
Besides Warder Elementary School, Jefferson County School District No. R-1 also operates Arvada West High School (1,923 students), Ralston Valley Senior High School (1,875 students), and Chatfield High School (1,808 students). See the Jefferson County School District No. R-1 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.