Enrollment
2,511
California · 2024-25 NCES data
Other / mixed grade configuration · Placerville, CA
Sky Mountain Charter
Federal NCES profile for Sky Mountain Charter, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 42/100.
2024-25 NCES dataOther / mixed grade configurationNCES 060174311860Charter school
👥 S:T ratio 0
🌟 Gifted program 30
📋 Attendance 97
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Sky Mountain Charter earns 42/100 on the Resource Investment Index, with class sizes larger than 92% of California schools. It is also one of the largest schools in California.
- #1 of 3
- schools in Placerville · Resource Index
- 42
- Resource Index · Typical
- 27.9:1
- large classes for California
- 30.9%
- free-lunch eligible
Sky Mountain Charter has class sizes larger than 92% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Sky Mountain Charter ranks #1 of 3 schools in Placerville, CA.
School address
District: Sky Mountain Charter District · California
NCES ID 060174311860 Verify on NCES CCD record →
Teachers (FTE)
90.0
Federal CCD staff survey
Students per teacher
27.9:1
vs 21.5:1 California avg
+30% vs state
Free-lunch eligible
30.9%
vs 55.5% California avg
-44% vs state
Student-teacher ratio in context
How Sky Mountain Charter compares with California and U.S. medians
What stands out at Sky Mountain Charter
Sky Mountain Charter is a large charter combined-grade school in Placerville, California, enrolling 2,511 students.
Class loads run heavy: 27.9:1 is larger than about 92% of California schools and 30% 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 30.9% of students eligible for free meals.
By headcount it is one of the larger campuses in California, bigger than 99% of state schools at 2,511 students.
Its Resource Investment Index lands in the upper third of 9,998 scored California schools.
Against 227 statewide peers matched on enrollment and economic need, it ranks in the upper tier at #28.
Its student body is led by Hispanic or Latino (41%) and White (31%), more mixed than most schools in the state (diversity index 70/100).
Attendance holds up well here: only 1.4% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Sky Mountain Charter District spends $10,391 per pupil, 37% below the California average, a leaner-resourced district than most.
Among Placerville's public schools, it stands alongside Charter Community School Home Study Academy (290 students): Sky Mountain Charter is larger than that campus by headcount and runs heavier classes (27.9:1 vs 10:1).
Sky Mountain Charter District is a single-school charter district, so Sky Mountain Charter operates independently rather than alongside district-mates. At 2,511 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 Sky Mountain Charter compares
Sky 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 | 27.9:1 | ▲ 30% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 30.9% | ▼ 44% | 55.5% | 51.7% |
| Enrollment | 2,511 | top 1% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
27.9:1
Leaner classes than 3% of US schools, heavier class loads than most.
2,511
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Economic need
30.9%
free-lunch eligible
- 44% 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
27.9:1
students per teacher
- 30% above state mean
Top 92% in California - lower ratio than 8% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
1.4%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$10,391
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
Student-support staffing from the Civil Rights Data Collection.
Discipline context
0
in-school suspensions + 1 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 41.3%
White 31.0%
Two or More 17.8%
Asian 6.1%
African American 3.5%
Native Hawaiian / Pacific Islander 0.2%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 41.3% of enrollment.
Student-body diversity index 69.7/100
Simpson diversity index - at 69.7, Sky Mountain Charter is more mixed than the California school average of 46.0.
Programs
AP courses offered 16
Funding & spending
District-wide per-pupil expenditure for Sky Mountain Charter District, which includes Sky Mountain Charter.
$10,391
Per student
-37%
vs California
Avg $16,509
-37%
vs U.S.
Avg $16,593
Revenue mix
Local 13.9%
State 81.9%
Federal 4.2%
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 Placerville
2 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 (~2,511 students)
Similar student-teacher ratio (~27.9:1)
Next steps
Verify locally before acting on Sky Mountain Charter's federal record.
- Compare Sky Mountain Charter against another school. Compare schools
- Sky 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 Sky Mountain Charter
How many students attend Sky Mountain Charter?
Sky Mountain Charter has 2,511 students enrolled. It is a public school in Placerville, CA.
What is the student-teacher ratio at Sky Mountain Charter?
The student-teacher ratio at Sky Mountain Charter is 27.9:1, which is 30% higher than the California average of 21.5:1 and 78% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Sky Mountain Charter?
30.9% of students at Sky Mountain Charter are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Sky Mountain Charter?
The largest demographic group at Sky Mountain Charter is Hispanic or Latino at 41.3% of enrollment, in Placerville, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 69.7/100.
What is the Resource Investment Index for Sky Mountain Charter?
Sky Mountain Charter has a Resource Investment Index of 42/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, AP course offerings, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Sky Mountain Charter rank among schools in Placerville?
By Resource Investment Index, Sky Mountain Charter ranks #1 of 3 schools in Placerville, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Placerville on the city page.
Is Sky Mountain Charter a good school?
Sky Mountain Charter earns 42/100 on the Resource Investment Index, with class sizes larger than 92% 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 Sky Mountain Charter District?
None; Sky Mountain Charter District is a single-school charter district, and Sky Mountain Charter is its only campus.
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.