Elementary school (grades K-5) · Encinitas, CA
Jcs - Mountain Oaks
Federal NCES profile for Jcs - Mountain Oaks, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 30/100.
The verdict
Jcs - Mountain Oaks earns 30/100 on the Resource Investment Index, with class sizes larger than 93% of California schools.
- #3 of 6
- elementary schools in Encinitas · Resource Index
- 30
- Resource Index · Lower
- 28.3:1
- large classes for California
- 13.9%
- free-lunch eligible
Jcs - Mountain Oaks has class sizes larger than 93% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Jcs - Mountain Oaks ranks #3 of 6 elementary schools in Encinitas, CA.
School address
NCES ID 060192914231 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+19 students YoY
Jcs - Mountain Oaks grew from 237 students in 2022-23 to 256 in 2023-24 (+8.0%).
Teacher FTE added 9.6 → 12.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Growing CCD campus
+19 students YoY 060192914231 · Encinitas, CA Elementary · SMALL · CHARTER
255 enr · 28.3:1 · 13.9% lunch · RII 30
Nearest enrollment peer: Boulder Community School/Integrated Studies (255 students)
Jcs - Mountain Oaks grew from 237 students in 2022-23 to 256 in 2023-24 (+8.0%). Teacher FTE added 9.6 → 12.6 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
How Jcs - Mountain Oaks compares
Jcs - Mountain Oaks is a growing campus on CCD: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 28.3:1 | ▲ 32% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 13.9% | ▼ 75% | 55.5% | 51.7% |
| Enrollment | 255 | top 79% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Equity indicators methodology
Student demographics
Largest group: White at 64.7% of enrollment.
Simpson diversity index - at 54.2, Jcs - Mountain Oaks is more mixed than the California school average of 46.0.
Programs
District finance for Jcs - Mountain Oaks District reports $13,097 per pupil (NCES F-33) - open the district page for the full revenue mix.
Similar elementary schools in Encinitas
5 comparable elementary schools (grades K-5) serving the same city.
Nationwide elementary 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 (~255 students)
Similar student-teacher ratio (~28.3:1)
Frequently asked questions about Jcs - Mountain Oaks
How many students attend Jcs - Mountain Oaks?
Jcs - Mountain Oaks has 255 students enrolled. It is an elementary school in Encinitas, CA. CCD year-over-year: 237 (2022-23) → 256 (2023-24), up 19.
What is the student-teacher ratio at Jcs - Mountain Oaks?
The student-teacher ratio at Jcs - Mountain Oaks is 28.3:1, which is 32% higher than the California average of 21.5:1 and 80% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Jcs - Mountain Oaks?
13.9% of students at Jcs - Mountain Oaks are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Jcs - Mountain Oaks?
The largest demographic group at Jcs - Mountain Oaks is White at 64.7% of enrollment, in Encinitas, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.2/100.
What is the Resource Investment Index for Jcs - Mountain Oaks?
Jcs - Mountain Oaks has a Resource Investment Index of 30/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Jcs - Mountain Oaks rank among elementary schools in Encinitas?
By Resource Investment Index, Jcs - Mountain Oaks ranks #3 of 6 elementary schools in Encinitas, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Encinitas on the city page.
What other schools are in Jcs - Mountain Oaks District?
None; Jcs - Mountain Oaks District is a single-school charter district, and Jcs - Mountain Oaks is its only campus.