Enrollment
425
California · 2024-25 NCES data
2024-25 NCES data Other / mixed grade configuration NCES 069100308686 Charter school
Mountain Oaks — San Andreas, CA
Federal NCES profile for Mountain Oaks, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 39/100.
👥 Class size 0
🌟 Gifted program 30
📋 Attendance 88
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Calaveras County Office of Education · California
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
8.0
Federal CCD staff survey
Students per teacher
50.3:1
vs 21.6:1 California avg
+133% vs state
Free-lunch eligible
48.5%
vs 55.5% California avg
-13% vs state
Student-teacher ratio in context
How Mountain Oaks compares with California and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Mountain Oaks reports 425 enrolled students to the National Center for Education Statistics (NCES) alongside 8.0 full-time-equivalent teachers, producing a 50.3:1 student-teacher ratio. That figure sits 133% above the California state mean of 21.6:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 216% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 48.5% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 13% below the California average and 6% below the national baseline. Chronic absenteeism — missing 10% or more of school days — stands at 4.9% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Calaveras County Office of Education spends $43,504 per pupil district-wide, above the California average of $18,039 and above the national average of $19,490. Revenue comes 26.8% from local sources (property taxes), 61.9% from the state, and 11.3% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 39/100 (F), calculated from 3 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Mountain Oaks compares
Cross-validating school-level NCES values against California state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 50.3:1 | ▲ 133% | 21.6:1 | 15.9:1 |
| Free-lunch eligible | 48.5% | ▼ 13% | 55.5% | 51.8% |
| Enrollment | 425 | top 43% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
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
50.3:1
students per teacher
— 133% above state mean
Top 100% in California — lower ratio than 0% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
4.9%
chronically absent (missed 10%+ of school days)
Below 10% — strong attendance relative to the post-pandemic national landscape.
Funding equity
$43,504
per pupil, district-wide
— above California avg of $18,039
Above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Overview
Enrollment 425 Top 43% in California — larger than 57% of 10,006 state schools
Teachers (FTE) 8.0
Students per teacher 50.3:1 +133% vs state
Free-lunch eligible 48.5% -13% vs state
NCES ID 069100308686
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.
Programs & staff
Discipline & special education
Chronically absent 4.9%
Funding & spending
District-wide per-pupil expenditure for Calaveras County Office of Education, which includes Mountain Oaks.
$43,504
Per student
+141%
vs California
Avg $18,039
+123%
vs U.S.
Avg $19,490
Revenue mix
Local 26.8%
State 61.9%
Federal 11.3%
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.
Other Schools in This District
- Enrollment
- 17
- Students per teacher
- 5:1
- Enrollment
- 13
- Students per teacher
- 14:1
- Enrollment
- 8
- Students per teacher
- 13:1
Similar other schools in San Andreas
4 comparable other schools (grades Mixed) serving the same city.
Calaveras High
Standard public school
703 students 20.2:1 students per teacher
Calaveras Unified Alternative-Sierra Hills Education Center
Alternative education program
127 students 27.8:1 students per teacher
Calaveras River Academy
Alternative education program
17 students 5:1 students per teacher
Oakendell Community
Alternative education program
8 students 13:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Mountain Oaks
How many students attend Mountain Oaks?
Mountain Oaks has 425 students enrolled. It is a other school in San Andreas, CA.
What is the student-teacher ratio at Mountain Oaks?
The student-teacher ratio at Mountain Oaks is 50.3:1, which is 133% higher than the California average of 21.6:1 and 216% higher than the national average of 15.9:1.
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%. The school serves a diverse student body in San Andreas, CA.
What is the Resource Investment Index for Mountain Oaks?
Mountain Oaks has a Resource Investment Index of 39/100 (F) based on 3 factors: student-teacher ratio, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.