JCS - Mountain Oaks | Encinitas, CA (For STEM)

About JCS - Mountain Oaks

JCS – Mountain Oaks is located at 539 Encinitas Blvd., Encinitas, CA 92024, serving students from kindergarten through eighth grade. The school currently enrolls 256 learners and maintains a student–teacher ratio of 20:1. The student population is roughly 52 % female and 48 % male. According to state assessment data, 67 % of students are proficient in math, and 82 % meet or exceed reading standards. Mountain Oaks is part of a charter network and blends classroom lessons with independent projects, giving students room to work at their own pace. Teachers place strong emphasis on building personal relationships with students, which helps keep classes small, lessons engaging, and learning more interactive. The school also encourages group projects and hands-on activities to reinforce key concepts in both math and reading. Nearby homes typically sell for about $1,646,800, showing the current residential market around the school. Within the region, JCS – Mountain Oaks stands out among elementary schools and is considered one of the best elementary schools in California for its steady academic results, flexible teaching methods, and supportive learning environment for a wide range of students.

Academic Performance

Subject Proficiency

Mathematics 67%

Reading 82%

State average proficiency is 67% in Math and 82% in Reading.

13

Full-time Teachers

20 : 1

Student-Teacher Ratio

256

Total Students

$58409

Avg. Teacher Salary

Student Demographics

White 67.58%

Asian 8.2%

Hispanic 8.98%

Black 1.56%

Two+ Races 13.67%

Native Am. 0%

White

67.58%

Asian

8.2%

Hispanic

8.98%

Black

1.56%

Two+ Races

13.67%

Native Am.

0%

Gender Distribution

Total Students: 256

52.34%

134 Female

47.66%

122 Male

Student Population

256 Students

With a student-teacher ratio of 20 : 1

Minority Enrollment

25%

Percentage of minority students

Students per Counselor

1280 : 1

Student to counselor ratio

JCS - Mountain Oaks Contact Information

Address

539 Encinitas Blvd., Encinitas, CA, 92024

View on Map

Phone

(760) 632-4989

Call Now

Website

http://mountainoaks.jcs-inc.org

Recent News & Updates

New Playground Name

We are so excited to announce the name of our new playground! Following a school-wide and Robinson community vote we narrowed a large list of names down to four. Since our students will be using the playground on a daily basis, we gave them the final vote! 476.....

School Timings

Regular School Hours

All Grades: 7:45 AM - 2:00 PM

Early Dismissal Days

Dismissal Time: 12:15 PM

Note: Doors open at 7:30 AM for student arrival. Please refer to the school calendar for specific early dismissal dates.

After School Activities

Information coming soon

School Session Dates

September to June

School session starts in September 1st week and ends in June 3rd week. For exact dates, please contact the school.

Remarkable Alumni

Being Updated

Map

Latest News

JCS – Mountain Oaks was listed in the 2026 U.S. News & World Report ranking of public middle schools in San Diego County, placing at number 94 among the region’s middle schools. This local ranking considered state test results in math and reading/language arts as part of its evaluation of academic performance. Parents in Encinitas have taken note of the ranking as a point of community pride, and it was highlighted in recent coverage of county school standings.

FAQ

Q1. What types of programs does JCS – Mountain Oaks offer?

Ans. The school offers both an in-school Academy program and a Home Study program, giving families options for different learning styles and schedules.

Q2. Does JCS – Mountain Oaks have a playground?

Ans. The school includes an indoor space dedicated to play and physical education rather than a traditional outdoor playground.

Q3. Are meals provided at JCS – Mountain Oaks?

Ans. Yes, students receive free breakfast and lunch through the school’s nutrition program.

Q4. How is physical education handled at JCS – Mountain Oaks?

Ans. Students in grades K-5 complete a monthly PE activity log, while older students log more minutes of physical activity at home.

Q5. When can families apply for enrollment at JCS – Mountain Oaks?

Ans. Enrollment for the next school year begins in the spring, and if there are more applicants than available spaces, the school uses a lottery system.

Games & Extracurricular Activities

Sports

Soccer Club Grades 1-3 | Mon/Wed 3:30-4:30pm
Basketball Grades 2-4 | Tue/Thu 3:30-4:45pm
Track & Field Grades 3-5 | Fri 3:30-5:00pm

Arts

Art Club Grades K-2 | Mon 3:00-4:00pm
Drama Club Grades 3-5 | Wed 3:30-5:00pm
Choir Grades 2-5 | Thu 3:15-4:15pm

Clubs

Chess Club Grades 2-5 | Fri 3:15-4:15pm
Garden Club All Grades | Tue 3:15-4:00pm
Robotics Club Grades 3-5 | Thu 3:30-5:00pm

Note: Schedules may change during school holidays. Please contact School for exact Schedule.

Summer Suggested Reading

Horn Book Selections

Vocabulary.com +3 Horn Book +3 What to Read to Your Kids +3

ML

Maggie Lou, Firefox

by Arnolda Dufour Bowes

PS

The Puppets of Spelhorst

by Kate DiCamillo

MLV

The Mona Lisa Vanishes

by Nicholas Day

Vocabulary.com Top Picks

Penguin Random House +10 Vocabulary.com +10 Wikipedia +10

F

Frindle

by Andrew Clements

WR

The Wild Robot

by Peter Brown

JGP

James and the Giant Peach

by Roald Dahl

Penguin Random House Features

Horn Book +2 Penguin Random House +2 The Guardian +2

SLB

The Secret Language of Birds

by Lynne Kelly

S

The Swifts: A Dictionary of Scoundrels

by Beth Lincoln

Free Robotics and Stem In-person Workshop in Your Neighbourhood for 7-14 Years Tech Enthusiasts.

Local kids are transforming ideas into real-world.

See the projects happening right in your neighborhood

What Parents Say