Enrollment
4,393
California · 2024-25 NCES data
Other / mixed grade configuration · Lucerne Valley, CA
Granite Mountain Charter
Federal NCES profile for Granite Mountain Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 32/100.
2024-25 NCES dataOther / mixed grade configurationNCES 060251614425Charter school
👥 S:T ratio 0
🌟 Gifted program 30
🎓 Counselors 0
📋 Attendance 99
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Granite Mountain Charter earns 32/100 on the Resource Investment Index, with class sizes larger than 99% of California schools. It is also one of the largest schools in California.
- #2 of 6
- public schools in Lucerne Valley · Resource Index
- 32
- Resource Index · Typical
- 38.5:1
- large classes for California
- 36.6%
- free-lunch eligible
Granite Mountain Charter has class sizes larger than 99% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Granite Mountain Charter ranks #2 of 6 public schools in Lucerne Valley, CA.
School address
District: Granite Mountain Charter District · California
NCES ID 060251614425 Verify on NCES CCD record →
Teachers (FTE)
114.0
Federal CCD staff survey
Students per teacher
38.5:1
vs 21.5:1 California avg
+79% vs state
Free-lunch eligible
36.6%
vs 55.5% California avg
-34% vs state
Student-teacher ratio in context
How Granite Mountain Charter compares with California and U.S. medians
What stands out at Granite Mountain Charter
Granite Mountain Charter is a large charter combined-grade school in Lucerne Valley, California, enrolling 4,393 students.
Class loads run heavy: 38.5:1 is larger than about 99% of California schools and 79% above the 21.5:1 state mean, so each teacher carries more students than is typical.
Economic need runs somewhat below the state's typical profile, with 36.6% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 99% of state schools at 4,393 students.
Its Resource Investment Index sits near the middle of the pack among 9,998 scored California schools.
Against 49 statewide peers matched on enrollment and economic need, it ranks mid-pack at #21.
Its student body is led by Hispanic or Latino (48%) and White (35%) (diversity index 64/100).
Counselor access is stretched at roughly 4393 students per counselor, well above the ASCA-recommended 250:1 ceiling.
Attendance holds up well here: only 0.3% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Granite Mountain Charter District spends $11,605 per pupil, 30% below the California average, a leaner-resourced district than most.
Among Lucerne Valley's public schools, it stands alongside Virtual Preparatory Academy at Lucerne (505 students): Granite Mountain Charter is larger than that campus by headcount and runs heavier classes (38.5:1 vs 18:1).
Granite Mountain Charter District is a single-school charter district, so Granite Mountain Charter operates independently rather than alongside district-mates. At 4,393 students, it is also among the largest single-school districts in California, well beyond the enrollment of a typical standalone charter.
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 Granite Mountain Charter compares
Granite Mountain Charter on the metrics families compare, against California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 38.5:1 | ▲ 79% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 36.6% | ▼ 34% | 55.5% | 51.7% |
| Enrollment | 4,393 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
38.5:1
Leaner classes than 1% of US schools, heavier class loads than most.
4,393
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
36.6%
free-lunch eligible
- 34% below the California average of 55.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
38.5:1
students per teacher
- 79% above state mean
Top 99% in California - lower ratio than 1% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
0.3%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$11,605
per pupil, district-wide
- below California avg of $16,509
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 4393 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 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 48.3%
White 34.8%
Two or More 8.5%
Asian 4.4%
African American 3.4%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.3%
Largest group: Hispanic or Latino at 48.3% of enrollment.
Student-body diversity index 63.5/100
Simpson diversity index - at 63.5, Granite Mountain Charter is more mixed than the California school average of 46.0.
Programs
AP courses offered 7
Funding & spending
District-wide per-pupil expenditure for Granite Mountain Charter District, which includes Granite Mountain Charter.
$11,605
Per student
-30%
vs California
Avg $16,509
-30%
vs U.S.
Avg $16,593
Revenue mix
Local 8.7%
State 86.5%
Federal 4.8%
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.
Similar other schools in Lucerne Valley
1 comparable other schools (grades Mixed) serving the same city.
Similar other schools statewide
Matched by enrollment size and by staffing ratio across all of California, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~4,393 students)
Similar student-teacher ratio (~38.5:1)
Next steps
Verify locally before acting on Granite Mountain Charter's federal record.
- Compare Granite Mountain Charter against another school. Compare schools
- Granite Mountain Charter District'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 Granite Mountain Charter
How many students attend Granite Mountain Charter?
Granite Mountain Charter has 4,393 students enrolled. It is a public school in Lucerne Valley, CA.
What is the student-teacher ratio at Granite Mountain Charter?
The student-teacher ratio at Granite Mountain Charter is 38.5:1, which is 79% higher than the California average of 21.5:1 and 145% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Granite Mountain Charter?
36.6% of students at Granite Mountain Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Granite Mountain Charter?
The largest demographic group at Granite Mountain Charter is Hispanic or Latino at 48.3% of enrollment, in Lucerne Valley, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.5/100.
What is the Resource Investment Index for Granite Mountain Charter?
Granite Mountain Charter has a Resource Investment Index of 32/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Granite Mountain Charter rank among public schools in Lucerne Valley?
By Resource Investment Index, Granite Mountain Charter ranks #2 of 6 public schools in Lucerne Valley, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Lucerne Valley on the city page.
Is Granite Mountain Charter a good school?
Granite Mountain Charter earns 32/100 on the Resource Investment Index, with class sizes larger than 99% of California schools. It is also one of the largest schools in California. 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 Granite Mountain Charter District?
None; Granite Mountain Charter District is a single-school charter district, and Granite Mountain Charter is its only campus.
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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.