Enrollment
725
Colorado · 2024-25 NCES data
Other / mixed grade configuration · Longmont, CO
Flagstaff Charter Academy
Federal NCES profile for Flagstaff Charter Academy, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 54/100.
2024-25 NCES dataOther / mixed grade configurationNCES 080537001890Charter school
👥 S:T ratio 52
🌟 Gifted program 70
🎓 Counselors 38
📋 Attendance 56
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Flagstaff Charter Academy earns 54/100 on the Resource Investment Index, with class sizes smaller than 83% of Colorado schools.
- #2 of 19
- schools in Longmont · Resource Index
- 54
- Resource Index · Higher
- 12.1:1
- small classes for Colorado
- 11.9%
- free-lunch eligible
Flagstaff Charter Academy has class sizes smaller than 83% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Flagstaff Charter Academy ranks #2 of 19 schools in Longmont, CO.
School address
District: St. Vrain Valley School District No. Re1j · Colorado
NCES ID 080537001890 Verify on NCES CCD record →
Teachers (FTE)
60.0
Federal CCD staff survey
Students per teacher
12.1:1
vs 16.6:1 Colorado avg
-27% vs state
Free-lunch eligible
11.9%
vs 38.5% Colorado avg
-69% vs state
Student-teacher ratio in context
How Flagstaff Charter Academy compares with Colorado and U.S. medians
What stands out at Flagstaff Charter Academy
Flagstaff Charter Academy is a lower-poverty, large charter combined-grade school in Longmont, Colorado, enrolling 725 students.
Class sizes run a bit leaner than typical: 12.1:1 puts it in the smaller third of Colorado schools by student-teacher ratio.
Comparatively few students face economic hardship here, 11.9% free-meal eligibility runs 69% below the Colorado average.
Enrollment of 725 puts it in the larger third of Colorado schools by headcount.
Its Resource Investment Index lands in the upper third of 1,922 scored Colorado schools.
Among 269 similarly sized, similarly resourced-need Colorado schools statewide, it ranks #23, a top-tier result once campus size and economic need are matched.
Its student body is led by White (66%) and Hispanic or Latino (17%) (diversity index 53/100).
Counselor coverage runs a bit thin, about 309 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
17.5% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding St. Vrain Valley School District No. Re1j spends $12,559 per pupil, 23% below the Colorado average, a leaner-resourced district than most.
St. Vrain Valley School District No. Re1j also operates Erie High School (1,727 students) and Niwot High School (1,509 students) alongside Flagstaff Charter Academy.
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 Flagstaff Charter Academy compares
Flagstaff Charter Academy on the metrics families compare, against Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 12.1:1 | ▼ 27% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 11.9% | ▼ 69% | 38.5% | 51.7% |
| Enrollment | 725 | top 14% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
12.1:1
Leaner classes than 75% of US schools, among the more generously staffed nationally.
725
Bigger than 82% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
11.9%
free-lunch eligible
- 69% below the Colorado average of 38.5%
Below the 40% Title I threshold, among the lower-need profiles in the state; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
12.1:1
students per teacher
- 27% below state mean
Top 17% in Colorado - lower ratio than 83% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
17.5%
chronically absent (missed 10%+ of school days)
In the 15-20% range, nearing the "high" absenteeism threshold.
Funding equity
$12,559
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
Counselors2.3 FTE
Per 309 students, the combined health-and-guidance staffing load for this school.
Discipline context
5
in-school suspensions + 11 out-of-school
Suspension rate: 0.7 per 100 students. Combined in-school and out-of-school rate: 2.2 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 65.7%
Hispanic or Latino 17.0%
Asian 8.7%
Two or More 7.9%
African American 0.7%
American Indian / Alaska Native 0.1%
Largest group: White at 65.7% of enrollment.
Student-body diversity index 52.6/100
Simpson diversity index - at 52.6, Flagstaff Charter Academy is more mixed than the Colorado school average of 47.1.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for St. Vrain Valley School District No. Re1j, which includes Flagstaff Charter Academy.
$12,559
Per student
-23%
vs Colorado
Avg $16,273
-24%
vs U.S.
Avg $16,593
Revenue mix
Local 54.1%
State 36.7%
Federal 9.3%
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 Flagstaff Charter Academy Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Erie High School | Larger | Similar economic need | Higher S:T ratio |
| Niwot High School | Larger | Similar economic need | Higher S:T ratio |
| Frederick Senior High School | Larger | Higher economic need | Higher S:T ratio |
| Longmont High School | Larger | Higher economic need | Higher S:T ratio |
| Soaring Heights Pk-8 | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Flagstaff Charter Academy's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,727
- Students per teacher
- 23.3:1
- Resource Index
- 37/100
- Enrollment
- 1,509
- Students per teacher
- 26.9:1
- Resource Index
- 32/100
- Enrollment
- 1,491
- Students per teacher
- 25.3:1
- Resource Index
- 32/100
- Enrollment
- 1,268
- Students per teacher
- 20.1:1
- Resource Index
- 37/100
- Enrollment
- 1,211
- Students per teacher
- 17.3:1
- Resource Index
- 46/100
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 (~725 students)
Next steps
Verify locally before acting on Flagstaff Charter Academy's federal record.
- Compare Flagstaff Charter Academy against another school. Compare schools
- St. Vrain Valley School District No. Re1j'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 Flagstaff Charter Academy
How many students attend Flagstaff Charter Academy?
Flagstaff Charter Academy has 725 students enrolled. It is a public school in Longmont, CO.
What is the student-teacher ratio at Flagstaff Charter Academy?
The student-teacher ratio at Flagstaff Charter Academy is 12.1:1, which is 27% lower than the Colorado average of 16.6:1 and 23% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Flagstaff Charter Academy?
11.9% of students at Flagstaff Charter Academy are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Flagstaff Charter Academy?
The largest demographic group at Flagstaff Charter Academy is White at 65.7% of enrollment, in Longmont, CO. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 52.6/100.
What is the Resource Investment Index for Flagstaff Charter Academy?
Flagstaff Charter Academy has a Resource Investment Index of 54/100 (higher 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 Flagstaff Charter Academy rank among schools in Longmont?
By Resource Investment Index, Flagstaff Charter Academy ranks #2 of 19 schools in Longmont, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Longmont on the city page.
Is Flagstaff Charter Academy a good school?
Flagstaff Charter Academy earns 54/100 on the Resource Investment Index, with class sizes smaller than 83% 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 St. Vrain Valley School District No. Re1j?
Besides Flagstaff Charter Academy, St. Vrain Valley School District No. Re1j also operates Erie High School (1,727 students), Niwot High School (1,509 students), and Frederick Senior High School (1,491 students). See the St. Vrain Valley School District No. Re1j 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.