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Average

#4318 of 9,533 schools in CA

Top 45% in state

Jcs - Mountain Oaks

Elementary School · JCS - Mountain Oaks District

539 Encinitas Blvd., Encinitas, CA 92024

Charter

Enrollment

256

Student-Teacher

21.3:1

Score

6.5

Grades

Kindergarten – 8th

Updated 2022-23

How this school compares

In Encinitas

#13 of 16

public schools

California elementary schools

#2,713 of 5,817

Equity

8.9 / 10

Exceptional

About Jcs - Mountain Oaks

JCS - Mountain Oaks serves 256 students from kindergarten through eighth grade as a charter elementary school in Encinitas, California. With 12 full-time equivalent teachers, the school maintains a 21.3:1 student-teacher ratio while delivering strong academic results that place it among the top performers in the state. The school earns an impressive 8.3 out of 10 rating and ranks #700 out of 9,566 California schools, placing it in the 93rd percentile statewide.

Students demonstrate solid academic achievement with 69% reaching proficiency or above in English Language Arts and 64% meeting or exceeding standards in mathematics. These results reflect the school's commitment to providing quality education in its charter school environment. JCS - Mountain Oaks draws families from a well-educated community where 65% of residents hold bachelor's degrees or higher and the median household income reaches $141,329.

The surrounding 92024 zip code area maintains a low poverty rate of 5.4% and features a median home value of $1,299,800, indicating a stable, affluent neighborhood that values educational investment. Located on Encinitas Boulevard in this charming small city setting, the school benefits from being part of San Diego County's coastal community, where families prioritize academic excellence and community engagement.

What Parents Should Know

The student-teacher ratio at Jcs - Mountain Oaks is 21.3:1, which is higher than the national average. This may mean larger class sizes, so parents should ask about classroom support, teaching assistants, and how the school differentiates instruction for students who need extra help.

Jcs - Mountain Oaks is a charter school — a publicly funded school that operates with more autonomy than traditional district schools. Charter schools often have distinct educational models or specialties. Parents should understand the school's specific mission, enrollment process, and how its approach differs from nearby district options.

Score Breakdown

Full Profile · 3/3 metrics
Student Progress5.6Average50%
Year-over-year improvement in student test scores.
View breakdown
Years of Data3
Annual Change-1.22 pts/yr
Data Period2019–2024
TrendDeclining
Academics8.6Excellent30%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency64.6%
Reading/ELA Proficiency69.3%
Math vs. State Avg+18.9 pts
Reading vs. State Avg+26.5 pts
Overall Proficiency67%
Expected (poverty-adj.)62%
vs. Expected+4.6 pts
Adjusted Percentile78th
College ReadinessNot Available

Data not available for this school

Resources & Environment5.4Average20%
Student-teacher ratio, per-pupil spending, and attendance.
View breakdown
Student-Teacher Ratio21.3:1
Per-Pupil Spending$12,395

Jcs - Mountain Oaks — Students at Jcs - Mountain Oaks score 67% proficient, which is above what's typical for similar communities (expected: 62%).

How we calculate scores →

Equity & Diversity

Shown separately, not included in overall score

Free/Reduced Lunch

23%

Students qualifying for federal meal assistance

Test Scores CA CAASPP (2023-24)

Math Proficiency 65.6%
School
State
36.8%
ELA Proficiency 71.3%
School
State
45.8%

Based on 18 test records from CA state assessments. About our data

Proficiency Trend

↓ Declining

Average proficiency (% at or above grade level) across Math & ELA over time.

2019
Math
70%
ELA
75%
2021*
Math
69%
ELA
82%
2024
Math
64.4%
ELA
69.2%

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Source: EdFacts (NCES) and state assessment data. Growth score: 5.6/10.

How Jcs - Mountain Oaks Compares

See how Jcs - Mountain Oaks performs across key quality dimensions compared to state benchmarks.

Overall Score
6.5/10
55th percentile in CA
Academic
8.6/10
8.6/10
Growth
5.6/10
Above average
Environment
5.4/10
Above average

Funding & Resources

Free/Reduced Lunch
Students eligible for subsidized meals
23%
Teaching Staff
21:1 student-teacher ratio
12 teachers

Location

539 Encinitas Blvd., Encinitas, CA 92024

Nearby Alternatives

Families considering Jcs - Mountain Oaks may also want to explore other elementary schools in the area. Cardiff Elementary (rated 8.3/10, 1.4 miles away, in nearby Cardiff-By-The-Sea), which scores notably higher. Another option is Flora Vista Elementary (rated 7.6/10, 1.7 miles away), which scores notably higher. Additionally, Ada W. Harris Elementary (rated 7.5/10, 1.0 miles away, in nearby Cardiff-By-The-Sea), which scores slightly higher. For more schools in Encinitas, see our Encinitas schools guide .

Nearby Schools

20 within 2.3 mi
School Distance Rating
Sunset High (Continuation) Encinitas 0.1 mi 7.6
PACIFIC ACADEMY Encinitas 0.2 mi 7.6
San Dieguito HS Academy Encinitas 0.6 mi 7.4
Ocean Knoll Elementary Encinitas 0.6 mi 5.4
Seeds of Hope Academy Encinitas 0.7 mi
Oak Crest Middle Encinitas 0.8 mi 6.7
Ada W. Harris Elementary Cardiff-By-The-Sea 1.0 mi 7.5
JCS - Cedar Cove Julian 0.9 mi 7.3
Norton High School Encinitas 1.0 mi
Lingua Natal Encinitas 1.3 mi
Paul Ecke-Central Elementary Encinitas 1.3 mi 6.2
Cardiff Elementary Cardiff-By-The-Sea 1.4 mi 8.3
MONTESSORI SCHOOL OF ENCINITAS Encinitas 1.3 mi
Village Gate Children's Academy Cardiff 1.5 mi
VILLAGE GATE CHILDREN'S ACADEMY Cardiff-by-the-Sea 1.5 mi 6.2
Flora Vista Elementary Encinitas 1.7 mi 7.6
GRAUER SCHOOL THE Encinitas 1.8 mi 6.3
Grauer School, The Encinitas 1.8 mi
Capri Elementary Encinitas 2.1 mi 7.5
Encinitas Country Day School Encinitas 2.3 mi

Neighborhood Census ACS (2019-2023)

Census data for ZIP 92024 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$149,080

Median Home Value

$1,409,700

Median Rent

$2,643/mo

Population

50,030

College Educated

66.8%

Homeownership

67.7%

Avg Commute

24.3 min

Poverty Rate

5.8%

Median Age

44.3

Community Profile

The community surrounding Jcs - Mountain Oaks has a median household income of $149,080. It is a well-educated community where 67% of adults hold a bachelor's degree or higher. The median home value in the area is $1,409,700, with a median rent of $2,643/month. The local poverty rate of 5.8% is relatively low. The average commute for residents is 24 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
BASIS INDEPENDENT FREMONT UPPER SCHOOL Fremont, CA 6.5
Bella Vista Elementary Bella Vista, CA 6.5
Buckeye Elementary Shingle Springs, CA 6.5
CALVARY CHAPEL ACADEMY Yorba Linda, CA 6.5
CALVARY CHAPEL RIALTO CHRISTIAN SCHOOL Rialto, CA 6.5
CHRIST THE KING CATHOLIC SCHOOL Pleasant Hill, CA 6.5

Frequently Asked Questions

Common questions about Jcs - Mountain Oaks

What grades does Jcs - Mountain Oaks serve?

Jcs - Mountain Oaks serves students in grades Kindergarten through 8th.

How many students attend Jcs - Mountain Oaks?

Jcs - Mountain Oaks has an enrollment of approximately 256 students.

What is the student-teacher ratio at Jcs - Mountain Oaks?

The student-teacher ratio at Jcs - Mountain Oaks is 21.3:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Jcs - Mountain Oaks rank in CA?

Jcs - Mountain Oaks is ranked #4318 out of 9,533 schools in CA.

What is Jcs - Mountain Oaks's MySchoolScout rating?

Jcs - Mountain Oaks has a composite rating of 6.5 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

What are the test scores at Jcs - Mountain Oaks?

Based on the most recent state assessment data, Jcs - Mountain Oaks has 65.6% math proficiency and 71.3% reading/ELA proficiency.

Is Jcs - Mountain Oaks a charter school?

Yes, Jcs - Mountain Oaks is a charter school. Charter schools are publicly funded but independently operated, often with more flexibility in curriculum and teaching methods.

Is Jcs - Mountain Oaks a Title I school?

No, Jcs - Mountain Oaks is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Jcs - Mountain Oaks?

23.0% of students at Jcs - Mountain Oaks qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

11 schools nearby View map →

Neighborhood Context

City Safety
Elevated (1,166/100K)

FBI UCR 2024. City-level (Encinitas). Data >1 year old.

Quick Facts NCES CCD (SY 2022-23)

Grades
Kindergarten – 8th
Enrollment
256
Student-Teacher Ratio
21.3:1
Teachers (FTE)
12
Free/Reduced Lunch
23.0%
Type
regular
Setting
Small City
County
San Diego County
Data Year
2023–2024

District

JCS - Mountain Oaks District
District Enrollment
256
Schools in District
1
Per-Pupil Spending
$13,097
District Rank
#1 of 1

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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