Enrollment
526
Colorado · 2024-25 NCES data
Other / mixed grade configuration · Edgewater, CO
Lumberg Elementary School
Federal NCES profile for Lumberg Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 13/100.
2024-25 NCES dataOther / mixed grade configurationNCES 080480000752
👥 S:T ratio 0
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 21
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Lumberg Elementary School earns 13/100 on the Resource Investment Index, with class sizes larger than 95% of Colorado schools.
- #3 of 3
- schools in Edgewater · Resource Index
- 13
- Resource Index · Lower
- 26.3:1
- large classes for Colorado
- 79.2%
- free-lunch eligible
Lumberg Elementary School has class sizes larger than 95% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Lumberg Elementary School ranks #3 of 3 schools in Edgewater, CO.
School address
District: Jefferson County School District No. R-1 · Colorado
NCES ID 080480000752 Verify on NCES CCD record →
Teachers (FTE)
20.0
Federal CCD staff survey
Students per teacher
26.3:1
vs 16.6:1 Colorado avg
+58% vs state
Free-lunch eligible
79.2%
vs 38.5% Colorado avg
+106% vs state
Student-teacher ratio in context
How Lumberg Elementary School compares with Colorado and U.S. medians
What stands out at Lumberg Elementary School
Lumberg Elementary School is a high-poverty, mid-sized combined-grade school in Edgewater, Colorado, enrolling 526 students.
Class loads run heavy: 26.3:1 is larger than about 95% of Colorado schools and 58% above the 16.6:1 state mean, so each teacher carries more students than is typical.
Economic need is high: 79.2% of students qualify for free meals, 106% above the Colorado average, a Title I-weighted population that federal funding formulas prioritise.
Enrollment of 526 puts it in the larger third of Colorado schools by headcount.
Its Resource Investment Index trails 99% of the 1,922 Colorado schools with a score on record, one of the lower results on this measure.
Among 144 similarly sized, similarly resourced-need Colorado schools statewide, it ranks #144, in the lower tier once campus size and economic need are matched.
Its student body is predominantly Hispanic or Latino (83% of enrollment) (diversity index 31/100).
Counselor access is stretched at roughly 526 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Chronic absenteeism is elevated: 31.6% of students missed 10% or more of school days (2021-22 Civil Rights Data 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 Lumberg 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 Lumberg Elementary School compares
Lumberg 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 | 26.3:1 | ▲ 58% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 79.2% | ▲ 106% | 38.5% | 51.7% |
| Enrollment | 526 | top 26% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
26.3:1
Leaner classes than 4% of US schools, heavier class loads than most.
526
Bigger than 65% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
79.2%
free-lunch eligible
- 106% above the Colorado average of 38.5%
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
26.3:1
students per teacher
- 58% above state mean
Top 95% in Colorado - lower ratio than 5% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
31.6%
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
$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
Counselors1.0 FTE
Per 526 students, the combined health-and-guidance staffing load for this school.
Discipline context
12
in-school suspensions + 27 out-of-school
Suspension rate: 2.3 per 100 students. Combined in-school and out-of-school rate: 7.4 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
Hispanic or Latino 82.5%
White 8.6%
African American 4.0%
Two or More 2.7%
Asian 1.0%
American Indian / Alaska Native 1.0%
Native Hawaiian / Pacific Islander 0.4%
Largest group: Hispanic or Latino at 82.5% of enrollment.
Student-body diversity index 30.9/100
Simpson diversity index - at 30.9, Lumberg Elementary School is less mixed than the Colorado school average of 47.1.
Programs
Funding & spending
District-wide per-pupil expenditure for Jefferson County School District No. R-1, which includes Lumberg 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 Lumberg Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arvada West High School | Larger | Lower economic need | Lower S:T ratio |
| Ralston Valley Senior High School | Larger | Lower economic need | Lower S:T ratio |
| Chatfield High School | Larger | Lower economic need | Lower S:T ratio |
| Lakewood High School | Larger | Lower economic need | Lower S:T ratio |
| Columbine High School | Larger | Lower economic need | Lower S:T ratio |
Comparisons are relative to Lumberg 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 (~526 students)
Next steps
Verify locally before acting on Lumberg Elementary School's federal record.
- Compare Lumberg 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 Lumberg Elementary School
How many students attend Lumberg Elementary School?
Lumberg Elementary School has 526 students enrolled. It is a public school in Edgewater, CO.
What is the student-teacher ratio at Lumberg Elementary School?
The student-teacher ratio at Lumberg Elementary School is 26.3:1, which is 58% higher than the Colorado average of 16.6:1 and 68% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Lumberg Elementary School?
79.2% of students at Lumberg Elementary School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Lumberg Elementary School?
The largest demographic group at Lumberg Elementary School is Hispanic or Latino at 82.5% of enrollment, in Edgewater, CO.
What is the Resource Investment Index for Lumberg Elementary School?
Lumberg Elementary School has a Resource Investment Index of 13/100 (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).
How does Lumberg Elementary School rank among schools in Edgewater?
By Resource Investment Index, Lumberg Elementary School ranks #3 of 3 schools in Edgewater, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Edgewater on the city page.
Is Lumberg Elementary School a good school?
Lumberg Elementary School earns 13/100 on the Resource Investment Index, with class sizes larger than 95% 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 Lumberg 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.