- Enrollment
- 17
- Students per teacher
- 4.3:1
- Resource Index
- 70/100
Other / mixed grade configuration · San Andreas, CA
Mountain Oaks
Federal NCES profile for Mountain Oaks, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 44/100.
2024-25 NCES dataOther / mixed grade configurationNCES 069100308686Charter school
👥 S:T ratio 0
📋 Attendance 88
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mountain Oaks earns 44/100 on the Resource Investment Index, with class sizes larger than 99% of California schools.
- #2 of 5
- schools in San Andreas · Resource Index
- 44
- Resource Index · Typical
- 53.1:1
- large classes for California
- 48.5%
- free-lunch eligible
Mountain Oaks has class sizes larger than 99% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mountain Oaks ranks #2 of 5 schools in San Andreas, CA.
School address
District: Calaveras County Office of Education · California
NCES ID 069100308686 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-4 students YoY
Mountain Oaks held near 398 students from 2022-23 to 2023-24 (-4 headcount).
Teacher FTE lost 8.4 → 7.9 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-4 students YoY 069100308686 · San Andreas, CA Other · SMALL · CHARTER
425 enr · 53.1:1 · 48.5% lunch · RII 44
Nearest enrollment peer: Calaveras River Academy (17 students)
Mountain Oaks held near 398 students from 2022-23 to 2023-24 (-4 headcount). Teacher FTE lost 8.4 → 7.9 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Mountain Oaks in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- This school
Mountain Oaks
425 students
- Calaveras Rive 17
Calaveras River Academy
17 students
- Calaveras Coun 13
Calaveras County Special Education (Selpa)
13 students
- Oakendell Comm 8
Oakendell Community
8 students
What this shows Mountain Oaks reports 425 students on the CCD universe file.
How Mountain Oaks compares
Mountain Oaks held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 53.1:1 | ▲ 147% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 48.5% | ▼ 13% | 55.5% | 51.7% |
| Enrollment | 425 | top 57% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
53.1:1
Leaner classes than 0% of US schools, heavier class loads than most.
425
Bigger than 51% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
48.5%
free-lunch eligible
- 13% below the California average of 55.5%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
53.1:1
students per teacher
- 147% 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
4.9%
chronically absent (missed 10%+ of school days)
Below 5%, comfortably under the pre-pandemic national baseline for chronic absenteeism.
Funding equity
$45,512
per pupil, district-wide
- above California avg of $18,665
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Student demographics
White 69.9%
Hispanic or Latino 20.0%
Two or More 7.1%
American Indian / Alaska Native 2.1%
Asian 0.7%
African American 0.2%
Largest group: White at 69.9% of enrollment.
Student-body diversity index 46.6/100
Simpson diversity index - at 46.6, Mountain Oaks is about as mixed as the California school average of 46.0.
District finance for Calaveras County Office of Education reports $45,512 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mountain Oaks Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Calaveras River Academy | Smaller | Higher economic need | Lower S:T ratio |
| Calaveras County Special Education (Selpa) | Smaller | Lower economic need | Lower S:T ratio |
| Oakendell Community | Smaller | Higher economic need | Lower S:T ratio |
Comparisons are relative to Mountain Oaks's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 13
- Students per teacher
- 13:1
- Resource Index
- 26/100
- Enrollment
- 8
- Students per teacher
- 8:1
- Resource Index
- 35/100
Similar other schools in San Andreas
4 comparable other schools (grades Mixed) serving the same city.
Calaveras High
Standard public school
703 students 19:1 students per teacher
Calaveras Unified Alternative-Sierra Hills Education Center
Alternative education program
127 students 31.8:1 students per teacher
Calaveras River Academy
Alternative education program
17 students 4.3:1 students per teacher
Oakendell Community
Alternative education program
8 students 8:1 students per teacher
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~425 students)
Frequently asked questions about Mountain Oaks
How many students attend Mountain Oaks?
Mountain Oaks has 425 students enrolled. It is a public school in San Andreas, CA. CCD year-over-year: 402 (2022-23) → 398 (2023-24), nearly flat (-4).
What is the student-teacher ratio at Mountain Oaks?
The student-teacher ratio at Mountain Oaks is 53.1:1, which is 147% higher than the California average of 21.5:1 and 238% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mountain Oaks?
48.5% of students at Mountain Oaks are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Mountain Oaks?
The largest demographic group at Mountain Oaks is White at 69.9% of enrollment, in San Andreas, CA.
What is the Resource Investment Index for Mountain Oaks?
Mountain Oaks has a Resource Investment Index of 44/100 (typical reported resources relative to schools nationally) based on 2 factors: student-teacher ratio, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology). Limited indicators were available, so the index reflects partial data.
How does Mountain Oaks rank among schools in San Andreas?
By Resource Investment Index, Mountain Oaks ranks #2 of 5 schools in San Andreas, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in San Andreas on the city page.
What other schools are in Calaveras County Office of Education?
Besides Mountain Oaks, Calaveras County Office of Education also operates Calaveras River Academy (17 students), Calaveras County Special Education (Selpa) (13 students), and Oakendell Community (8 students). See the Calaveras County Office of Education district page for the complete list.