Enrollment
1,431
Colorado · 2024-25 NCES data
High school (grades 9-12) · Louisville, CO
Federal NCES profile for Monarch High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
The verdict
Monarch High School earns 49/100 on the Resource Investment Index, with class sizes larger than 83% of Colorado schools. It is also one of the largest schools in Colorado.
Monarch High School has class sizes larger than 83% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Monarch High School ranks #6 of 6 public schools in Louisville, CO.
NCES ID 080249001632 Verify on NCES CCD record →
Enrollment
1,431
Colorado · 2024-25 NCES data
Teachers (FTE)
73.0
Federal CCD staff survey
Students per teacher
19.6:1
vs 16.6:1 Colorado avg
+18% vs state
Free-lunch eligible
19.9%
vs 38.5% Colorado avg
-48% vs state
How Monarch High School compares with Colorado and U.S. medians
Slightly above state median
19.6:1 - 3.0 above the Colorado state median of 16.6:1, indicating larger average class loads than typical schools in the state.
Monarch High School is a lower-poverty, large high school in Louisville, Colorado, enrolling 1,431 students.
Class loads run somewhat heavier than typical: 19.6:1 puts it in the larger third of Colorado schools by student-teacher ratio.
Economic need runs somewhat below the state's typical profile, with 19.9% of students eligible for free meals.
By headcount it is one of the larger campuses in Colorado, bigger than 96% of state schools at 1,431 students.
Its Resource Investment Index sits near the middle of the pack among 1,922 scored Colorado schools.
Against 104 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #38.
Its student body is led by White (77%) and Hispanic or Latino (11%) (diversity index 39/100).
On the academic-pipeline side it reports 17 Advanced Placement courses.
Counselor availability sits well past the ASCA benchmark, roughly 358 students sharing each counselor, though short of the most stretched campuses.
Attendance runs somewhat below the norm, with 24.2% of students chronically absent per the 2021-22 civil-rights collection.
Boulder Valley School District No. Re2 also operates Boulder High School (1,939 students) and Fairview High School (1,863 students) alongside Monarch 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
Monarch High 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 | 19.6:1 | ▲ 18% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 19.9% | ▼ 48% | 38.5% | 51.7% |
| Enrollment | 1,431 | top 4% | - | - |
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 77.0% of enrollment.
Simpson diversity index - at 38.8, Monarch High School is less mixed than the Colorado school average of 47.1.
District-wide per-pupil expenditure for Boulder Valley School District No. Re2, which includes Monarch 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 |
|---|---|---|---|
| Boulder High School | Larger | Similar economic need | Similar S:T ratio |
| Fairview High School | Larger | Similar economic need | Higher S:T ratio |
| Broomfield High School | Similar size | Similar economic need | Higher S:T ratio |
| Centaurus High School | Similar size | Similar economic need | Similar S:T ratio |
| Peak to Peak Charter School | Similar size | Lower economic need | Similar S:T ratio |
Comparisons are relative to Monarch 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 Colorado, not just this city - a different peer set than the local comparisons above.
Next steps
Verify locally before acting on Monarch 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.
Monarch High School has 1,431 students enrolled. It is a high school in Louisville, CO.
The student-teacher ratio at Monarch High School is 19.6:1, which is 18% higher than the Colorado average of 16.6:1 and 25% higher than the national average of 15.7:1.
19.9% of students at Monarch High School are eligible for free lunch, compared to the Colorado average of 38.5%.
The largest demographic group at Monarch High School is White at 77.0% of enrollment, in Louisville, CO.
Monarch High School has a Resource Investment Index of 49/100 (higher reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Monarch High School ranks #6 of 6 public schools in Louisville, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Louisville on the city page.
Monarch High School earns 49/100 on the Resource Investment Index, with class sizes larger than 83% of Colorado schools. It is also one of the largest schools in Colorado. 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 Monarch High School, Boulder Valley School District No. Re2 also operates Boulder High School (1,939 students), Fairview High School (1,863 students), and Broomfield High School (1,693 students). See the Boulder Valley School District No. Re2 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, “Monarch High School, Louisville CO.” 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/monarch-high-school-co
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