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JCS - Mountain Oaks

Q: Is JCS - Mountain Oaks a good school?

JCS - Mountain Oaks ranks 861 st of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public, Charter Grades K-8

861^st

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 85% of California elementary schools

Summary

JCS - Mountain Oaks is a highly regarded K-8 public school in Encinitas, California, serving 255 students with a strong record of academic performance and an exceptionally engaged school community.

The school's most remarkable feature is its near-perfect attendance; with a chronic absenteeism rate of just 2.2%, it far outperforms the state average and all nearby schools like Ocean Knoll Elementary (11.2%) and Park Dale Lane Elementary (10.4%). This culture of consistent attendance is a huge advantage for student learning. Academically, the school delivers solid and steady results across all grade levels, with particularly strong performance in middle school, avoiding the "achievement dip" some students face when switching schools.

What makes JCS - Mountain Oaks stand out is its effectiveness in supporting its students. While some neighboring schools like El Camino Creek Elementary have higher overall test scores, JCS achieves its strong outcomes while serving a more economically diverse population and operating with significantly lower per-student spending than most schools in the Encinitas Union Elementary district. This combination of high engagement, consistent academic results, and cost-effective operation makes it a compelling choice for families.

255

Students ?

16.2

Student/teacher ratio ?

$14,431

Per pupil spending ?

25.9%

Free/discounted lunch ?

539 Encinitas Blvd.
Encinitas, CA 92024-3748

(760) 632-4989

District: JCS - Mountain Oaks District

Racial breakdown:

White:

64.7%

Hispanic:

12.9%

Two or more races:

12.5%

See top rated California elementary schools

Compare JCS - Mountain Oaks to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 89th percentile in 2019 → 85th in 2025

Strengths

✓Test scores above the California average (70% vs 41% meeting standards)

✓Ranks in the top 15% of California elementary schools

Worth a look

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2024-2025) ?

This school70%

California avg41%

Elementary school

861^st of 5,857

California public elementary schools ?

Top 15%▼ down 4 pts since 2019

From top 11% (2019) to top 15% (2025)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

131^st of 2,761

California public middle schools ?

Top 5%▲ up 3 pts since 2019

See the entire ranking list of California Middle Schools →

★★★★★

SchoolDigger rating ?

101^st of 1,543JCS - Mountain Oaks District among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Elementary school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	86.3	861 of 5857	85.3%	★★★★☆
2024	82.6	1050 of 5869	82.1%	★★★★☆
2023	92.4	547 of 5859	90.7%	★★★★★
2022	93.8	458 of 5883	92.2%	★★★★★
2021	96.2	65 of 1417	95.4%	★★★★★
2019	90.4	616 of 5789	89.4%	★★★★☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.4	915 of 5597	83.7%	★★★★☆
2024	80.2	1092 of 5612	80.5%	★★★★☆
2023	89.5	655 of 5609	88.3%	★★★★☆
2022	91.7	532 of 5635	90.6%	★★★★★
2021	93.8	89 of 1267	93.0%	★★★★★
2019	83.3	904 of 5492	83.5%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2024	81.2	781 of 5517	85.8%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	82.8	957 of 5628	83.0%	★★★★☆
2024	80.0	1076 of 5643	80.9%	★★★★☆
2023	92.3	476 of 5638	91.6%	★★★★★
2022	92.6	470 of 5663	91.7%	★★★★★
2021	96.5	51 of 1272	96.0%	★★★★★
2019	92.1	439 of 5510	92.0%	★★★★★

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	65.7	918 of 2598	64.7%	★★★☆☆
2024	58.9	1164 of 2651	56.1%	★★★☆☆
2023	76.6	563 of 2661	78.8%	★★★★☆
2022	76.5	574 of 2726	78.9%	★★★★☆
2019	70.5	804 of 2834	71.6%	★★★★☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	95.6	131 of 2761	95.3%	★★★★★
2024	93.4	200 of 2783	92.8%	★★★★★
2023	95.7	126 of 2781	95.5%	★★★★★
2022	94.7	149 of 2740	94.6%	★★★★★
2021	96.3	36 of 894	96.0%	★★★★★
2019	92.7	204 of 2715	92.5%	★★★★★

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	94.6	132 of 2533	94.8%	★★★★★
2024	90.0	246 of 2551	90.4%	★★★★★
2023	91.9	202 of 2531	92.0%	★★★★★
2022	97.2	61 of 2509	97.6%	★★★★★
2021	93.9	40 of 738	94.6%	★★★★★
2019	91.3	189 of 2380	92.1%	★★★★★

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	96.6	89 of 2534	96.5%	★★★★★
2024	96.3	96 of 2552	96.2%	★★★★★
2023	96.2	95 of 2538	96.3%	★★★★★
2022	94.6	139 of 2527	94.5%	★★★★★
2021	96.8	34 of 763	95.5%	★★★★★
2019	89.1	261 of 2407	89.2%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.3	179 of 1520	88.2%	★★★★☆
2024	81.4	208 of 1537	86.5%	★★★★☆
2023	83.6	177 of 1543	88.5%	★★★★☆
2022	84.4	156 of 1555	90.0%	★★★★★
2019	78.7	284 of 1602	82.3%	★★★★☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

Elementary school

Low Socio Economic Status (2024)86th percentile+4 vs school

Female (2025)84th percentile~ school

Male (2025)83rd percentile~ school

White (2025)65th percentile-21 vs school

Middle school

Male (2025)96th percentile~ school

Female (2025)95th percentile~ school

White (2025)88th percentile-7 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy73%+24 vs state

Mathematics70%+33 vs state

Science57%+24 vs state

★

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Schools Near JCS - Mountain Oaks

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)							Smarter Balanced Assessments Mathematics (2025)							Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	Smarter Balanced Assessments English Language Arts/Literacy 6th Grade	Smarter Balanced Assessments English Language Arts/Literacy 7th Grade	Smarter Balanced Assessments English Language Arts/Literacy 8th Grade	Smarter Balanced Assessments English Language Arts/Literacy All Grades	Smarter Balanced Assessments Mathematics 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
JCS - Mountain Oaks	Public, Charter	K-8	539 Encinitas Blvd.	Encinitas	92024	San Diego County	JCS - Mountain Oaks District	Yes	(n/a)	No	(n/a)	(760) 632-4989	255	16	16.2	25.9%	165 (64.7%)	2 (0.8%)	33 (12.9%)	22 (8.6%)	1 (0.4%)	0 (0.0%)	32 (12.5%)	86.3	861^st of 5857 public elementary schools	85.3%		82.6	1050^th of 5869 public elementary schools	82.1%	189	58.6	54.6	56.9	45.8	70.4	79.3	74.4	84.9	77.3	73.0	54.2	59.3	65.5	79.1	87.5	63.6	70.1	$14,431	$424	$14,007
Ocean Knoll Elementary	Public	K-6	910 Melba Rd.	Encinitas	92024	San Diego County	Encinitas Union Elementary	No	(n/a)	No	(n/a)	(760) 944-4351	479	19	25.2	37.0%	235 (49.1%)	1 (0.2%)	187 (39.0%)	13 (2.7%)	0 (0.0%)	0 (0.0%)	43 (9.0%)	76.7	1300^th of 5857 public elementary schools	77.8%		80.7	1127^th of 5869 public elementary schools	80.8%	173	44.3		44.3	64.1	58.1	63.3	58.4			60.9	62.5	57.5	50.6	48.1			54.3	$17,210	$714	$16,496
Ada W. Harris Elementary	Public	3-6	1508 Windsor Rd.	Cardiff by the Sea	92007	San Diego County	Cardiff Elementary	No	(n/a)	No	(n/a)	(760) 632-5894	382	17	22.4	11.0%	244 (63.9%)	2 (0.5%)	55 (14.4%)	11 (2.9%)	1 (0.3%)	0 (0.0%)	69 (18.1%)	91.6	570^th of 5857 public elementary schools	90.3%		90.8	645^th of 5869 public elementary schools	89.0%	75	55.3		55.3	70.1	79.5	75.3	84.0			77.5	75.9	67.0	54.1	77.7			68.8	$18,117	$675	$17,442
Paul Ecke-Central Elementary	Public	K-6	185 Union St.	Encinitas	92024	San Diego County	Encinitas Union Elementary	No	(n/a)	No	(n/a)	(760) 944-4323	569	25	22.7	27.1%	326 (57.3%)	0 (0.0%)	170 (29.9%)	5 (0.9%)	0 (0.0%)	1 (0.2%)	67 (11.8%)	84.3	946^th of 5857 public elementary schools	83.8%		79.6	1172^nd of 5869 public elementary schools	80.0%	226	55.8		55.8	67.1	63.2	64.9	62.7			64.4	67.1	59.8	59.7	58.7			61.3	$17,175	$899	$16,276
Cardiff Elementary	Public	K-2	1888 Montgomery Ave.	Cardiff by the Sea	92007	San Diego County	Cardiff Elementary	No	(n/a)	No	(n/a)	(760) 632-5892	259	12	21.5	11.2%	173 (66.8%)	0 (0.0%)	35 (13.5%)	5 (1.9%)	0 (0.0%)	1 (0.4%)	44 (17.0%)								(n/a)																		$21,068	$949	$20,119
Flora Vista Elementary	Public	K-6	1690 Wandering Rd.	Encinitas	92024	San Diego County	Encinitas Union Elementary	No	(n/a)	No	(n/a)	(760) 944-4329	377	15	25.1	13.3%	253 (67.1%)	0 (0.0%)	53 (14.1%)	11 (2.9%)	0 (0.0%)	0 (0.0%)	60 (15.9%)	88.1	769^th of 5857 public elementary schools	86.9%		92.1	566^th of 5869 public elementary schools	90.4%	203	61.4		61.4	53.7	74.2	77.1	71.0			70.6	51.2	79.0	60.0	66.1			65.1	$19,343	$853	$18,490
Capri Elementary	Public	K-6	941 Capri Rd.	Encinitas	92024	San Diego County	Encinitas Union Elementary	No	(n/a)	No	(n/a)	(760) 944-4360	613	25	24.5	26.1%	338 (55.1%)	1 (0.2%)	194 (31.6%)	18 (2.9%)	0 (0.0%)	0 (0.0%)	62 (10.1%)	86	878^th of 5857 public elementary schools	85.0%		89.5	726^th of 5869 public elementary schools	87.6%	152	47.0		47.0	60.0	67.1	73.8	64.5			66.4	66.3	69.4	61.9	65.6			65.8	$17,186	$675	$16,511
Park Dale Lane Elementary	Public	K-6	2050 Park Dale Ln.	Encinitas	92024	San Diego County	Encinitas Union Elementary	No	(n/a)	No	(n/a)	(760) 944-4344	424	20	21.2	24.5%	270 (63.7%)	1 (0.2%)	97 (22.9%)	7 (1.7%)	1 (0.2%)	0 (0.0%)	48 (11.3%)	79.7	1166^th of 5857 public elementary schools	80.1%		84	993^rd of 5869 public elementary schools	83.1%	173	59.7		59.7	54.2	62.3	64.5	72.2			62.7	52.8	63.9	50.0	55.6			55.4	$17,634	$469	$17,165
El Camino Creek Elementary	Public	K-6	7885 Paseo Aliso	Carlsbad	92009	San Diego County	Encinitas Union Elementary	No	(n/a)	No	(n/a)	(760) 943-2051	409	16	25.5	5.1%	306 (74.8%)	1 (0.2%)	38 (9.3%)	15 (3.7%)	3 (0.7%)	0 (0.0%)	46 (11.2%)	98.2	58^th of 5857 public elementary schools	99.0%		96.6	203^rd of 5869 public elementary schools	96.5%	145	72.2		72.2	89.3	85.3	85.7	89.3			87.4	91.1	96.7	76.7	80.0			85.2	$16,908	$611	$16,297
Olivenhain Pioneer Elementary	Public	K-6	8000 Calle Acervo	Carlsbad	92009	San Diego County	Encinitas Union Elementary	No	(n/a)	No	(n/a)	(760) 943-2000	520	22	23.6	6.5%	386 (74.2%)	6 (1.2%)	52 (10.0%)	19 (3.7%)	0 (0.0%)	0 (0.0%)	57 (11.0%)	95.4	299^th of 5857 public elementary schools	94.9%		95.3	322^nd of 5869 public elementary schools	94.5%	23	62.4		62.4	78.5	83.6	83.5	74.4			79.9	80.0	77.9	70.2	76.8			75.9	$16,718	$652	$16,066

Frequently Asked Questions about JCS - Mountain Oaks

What district is JCS - Mountain Oaks in?

JCS - Mountain Oaks District

What is the racial makeup of JCS - Mountain Oaks?

Students at JCS - Mountain Oaks are 65% White, 13% Hispanic, 13% Two or more races, 9% Asian.

How many students attend JCS - Mountain Oaks?

In the 2024-25 school year, 255 students attended JCS - Mountain Oaks.

Is JCS - Mountain Oaks a good school?

JCS - Mountain Oaks ranks 861^st of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

Rate JCS - Mountain Oaks!

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Schools in Encinitas, CA

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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the California Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.