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Mt. Diablo Elementary

Q: Is Mt. Diablo Elementary a good school?

Mt. Diablo Elementary ranks 815 th of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades K-5

815^th

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 86% of California elementary schools

Summary

Mt. Diablo Elementary is a large, highly-rated K-5 public school serving 739 students in Clayton, CA, within the Mt. Diablo Unified district, consistently ranking in the top 15% of all California elementary schools.

The school stands out for its strong and steady academic performance, with student test scores significantly above both district and state averages in English, Math, and Science. A key strength is its exceptional effectiveness with specific student groups, such as those from low-income backgrounds, where it ranks in the 91st percentile statewide. The school also maintains an excellent attendance record, with chronic absenteeism less than half the average of nearby schools like El Monte Elementary or Mountain View Elementary. Remarkably, it achieves these results with a higher student-to-teacher ratio than many peers and has maintained its high performance even as the number of students qualifying for free lunch has increased.

While Valle Verde Elementary is a nearby school that performs at a similarly high level, Mt. Diablo notably outperforms most other schools in the area, such as Westwood Elementary and Woodside Elementary. Parents may want to note that while the school excels overall, there is a noticeable drop in 5th-grade math and science scores compared to lower grades, which may be an area to inquire about. Overall, Mt. Diablo Elementary is a consistently high-achieving school with a strong track record of student success.

739

Students ?

30.0

Student/teacher ratio ?

$231

Per pupil spending ?

21%

Free/discounted lunch ?

5880 Mt. Zion Dr.
Clayton, CA 94517-1114

(925) 672-4840

District: Mt. Diablo Unified

Students who attend Mt. Diablo Elementary usually attend:

Middle:	Diablo View Middle
High:	College Park High
	Concord High
	Mt. Diablo High
	Northgate High
	More...
	Ygnacio Valley High

Racial breakdown:

White:

52.1%

Two or more races:

17.6%

Hispanic:

17.3%

See top rated California elementary schools

Compare Mt. Diablo Elementary to nearby elementary schools!

At a glance

▬ Ranking trend: Holding steady — 88th percentile in 2015 → 86th in 2025

Strengths

✓Test scores above the California average (66% vs 41% meeting standards)

✓Ranks in the top 14% of California elementary schools

✓Among the top-ranked schools in Mt. Diablo Unified

Worth a look

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

!Large classes — about 30 students per teacher

Students meeting standards (2024-2025) ?

This school66%

District avg42%

California avg41%

815^th of 5,857

California public elementary schools ?

Top 14%▼ down 2 pts since 2015

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

4^th of 30Elementary Schools in the Mt. Diablo Unified

759^th of 1,543Mt. Diablo Unified 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)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	87.2	815 of 5857	86.1%	★★★★☆
2024	89.1	739 of 5869	87.4%	★★★★☆
2023	86.2	907 of 5859	84.5%	★★★★☆
2022	86.6	874 of 5883	85.1%	★★★★☆
2021	85.9	194 of 1417	86.3%	★★★★☆
2019	81.3	1106 of 5789	80.9%	★★★★☆
2018	86.7	813 of 5662	85.6%	★★★★☆
2017	88.2	750 of 5692	86.8%	★★★★☆
2016	88.8	689 of 5614	87.7%	★★★★☆
2015	89.3	649 of 5611	88.4%	★★★★☆
2013	91.1	394 of 5530	92.9%	★★★★★
2012	90.7	383 of 5390	92.9%	★★★★★
2011	81.5	920 of 5377	82.9%	★★★★☆
2010	86.3	665 of 5314	87.5%	★★★★☆
2009	88.5	557 of 5193	89.3%	★★★★☆
2008	87.5	632 of 5113	87.6%	★★★★☆
2007	88.3	599 of 5113	88.3%	★★★★☆
2006	91.8	392 of 4818	91.9%	★★★★★
2005	92.8	345 of 4822	92.8%	★★★★★
2004	90.8	469 of 4809	90.2%	★★★★★

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2025	75.4	284 of 1203	76.4%	★★★★☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	73.6	380 of 2227	82.9%	★★★★☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	87.8	702 of 5597	87.5%	★★★★☆
2024	90.1	615 of 5612	89.0%	★★★★☆
2023	81.8	1025 of 5609	81.7%	★★★★☆
2022	86.8	783 of 5635	86.1%	★★★★☆
2021	86.1	177 of 1267	86.0%	★★★★☆
2019	80.3	1060 of 5492	80.7%	★★★★☆
2018	83.2	899 of 5413	83.4%	★★★★☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	97.3	78 of 5107	98.5%	★★★★★
2024	71.7	1117 of 5107	78.1%	★★★★☆
2023	82.2	641 of 5087	87.4%	★★★★☆
2022	76.7	873 of 5084	82.8%	★★★★☆
2019	76.5	859 of 4963	82.7%	★★★★☆
2018	84.9	499 of 4830	89.7%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	87.0	489 of 5460	91.0%	★★★★★
2024	85.4	611 of 5517	88.9%	★★★★☆
2022	84.6	559 of 5264	89.4%	★★★★☆
2021	78.7	151 of 1110	86.4%	★★★★☆
2019	67.5	1311 of 5173	74.7%	★★★★☆
2018	69.9	1191 of 5084	76.6%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	83.7	899 of 5628	84.0%	★★★★☆
2024	84.8	884 of 5643	84.3%	★★★★☆
2023	87.6	741 of 5638	86.9%	★★★★☆
2022	83.0	963 of 5663	83.0%	★★★★☆
2021	82.7	218 of 1272	82.9%	★★★★☆
2019	80.1	1070 of 5510	80.6%	★★★★☆
2018	87.5	718 of 5431	86.8%	★★★★☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2025	43.2	470 of 718	34.5%	★★☆☆☆
2024	50.0	400 of 670	40.3%	★★☆☆☆
2023	53.1	361 of 669	46.0%	★★☆☆☆
2022	59.5	282 of 610	53.8%	★★★☆☆
2019	35.9	326 of 445	26.7%	★☆☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2025	44.1	1282 of 2847	55.0%	★★★☆☆
2024	93.6	134 of 2635	94.9%	★★★★★

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	64.4	967 of 2598	62.8%	★★★☆☆
2024	74.8	638 of 2651	75.9%	★★★★☆
2023	66.1	925 of 2661	65.2%	★★★☆☆
2022	67.7	889 of 2726	67.4%	★★★☆☆
2019	59.5	1228 of 2834	56.7%	★★★☆☆
2018	64.9	1007 of 2737	63.2%	★★★☆☆

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)

Hispanic (2025)98th percentile+12 vs school

Low Socio Economic Status (2025)91st percentile+5 vs school

Female (2025)87th percentile~ school

Male (2025)84th percentile~ school

Disabled (2022)83rd percentile~ school

Asian (2025)76th percentile-10 vs school

White (2025)63rd percentile-23 vs school

Special Education (2025)55th percentile-31 vs school

Multi-racial (2025)35th percentile-52 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy71%+22 vs state

Mathematics68%+31 vs state

Science47%+14 vs state

5.0

1 rating · 1 written review

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What people are saying

by a parent
Wednesday, February 13, 2019

The teachers are the real stars here. Their focus and observation w.r.t my child has been great. I firmly believe they are doing their best. Rest of-course is parents and society responsibility to bring up a well rounded individual. Close Quote

Schools Near Mt. Diablo Elementary

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Immunizations 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)							% Completely Immunized (2022)	% Polio (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	Per Pupil Expenditures (2025)
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	% Completely Immunized KG	% Polio KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Mt. Diablo Elementary	Public	K-5	5880 Mt. Zion Dr.	Clayton	94517	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 672-4840	739	25	30.0	21.0%	385 (52.1%)	7 (0.9%)	128 (17.3%)	85 (11.5%)	0 (0.0%)	4 (0.5%)	130 (17.6%)	87.2	815^th of 5857 public elementary schools	86.1%		89.1	739^th of 5869 public elementary schools	87.4%	76	46.9		46.9	65.5	79.5	69.0				71.3	73.5	78.8	52.2				68.1						$231	$36	$195
Highlands Elementary	Public	K-5	1326 Pennsylvania Blvd.	Concord	94521	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 672-5252	512	19	26.9	32.4%	167 (32.6%)	8 (1.6%)	147 (28.7%)	89 (17.4%)	0 (0.0%)	1 (0.2%)	100 (19.5%)	57.4	2199^th of 5857 public elementary schools	62.5%		63.3	1916^th of 5869 public elementary schools	67.4%	283	42.7		42.7	44.2	36.1	54.9				45.0	47.7	42.5	50.0				46.8	95.5					$311	$134	$177
Ayers Elementary	Public	K-5	5120 Myrtle Dr.	Concord	94521	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 682-7686	394	16	24.6	40.4%	147 (37.3%)	13 (3.3%)	120 (30.5%)	58 (14.7%)	0 (0.0%)	2 (0.5%)	53 (13.5%)	54	2363^rd of 5857 public elementary schools	59.7%		55.4	2263^rd of 5869 public elementary schools	61.4%	100	33.8		33.8	51.6	53.7	48.5				51.1	48.4	37.0	30.9				38.7						$708	$314	$394
Silverwood Elementary	Public	K-5	1649 Claycord Ave.	Concord	94521	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 687-1150	530	21	25.2	53.2%	131 (24.7%)	14 (2.6%)	188 (35.5%)	115 (21.7%)	0 (0.0%)	5 (0.9%)	77 (14.5%)	64.4	1865^th of 5857 public elementary schools	68.2%		50.2	2542^nd of 5869 public elementary schools	56.7%	677	40.0		40.0	59.0	47.4	48.9				51.8	56.0	51.3	42.1				49.4	97.1					$301	$00	$301
Mountain View Elementary	Public	K-5	1705 Thornwood Dr.	Concord	94521	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 689-6450	267	11	24.2	56.2%	75 (28.1%)	8 (3.0%)	113 (42.3%)	28 (10.5%)	1 (0.4%)	4 (1.5%)	38 (14.2%)	28.8	4066^th of 5857 public elementary schools	30.6%		46.7	2754^th of 5869 public elementary schools	53.1%	1312	23.7		23.7	10.4	40.0	42.1				29.8	17.0	28.9	36.8				26.9						$722	$242	$480
Westwood Elementary	Public	K-5	1748 West St.	Concord	94521	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 685-4202	224	11	20.3	72.3%	67 (29.9%)	1 (0.4%)	103 (46.0%)	30 (13.4%)	1 (0.4%)	1 (0.4%)	21 (9.4%)	36.4	3449^th of 5857 public elementary schools	41.1%		47.6	2695^th of 5869 public elementary schools	54.1%	754	26.7		26.7	47.5	37.5	36.7				40.7	33.3	32.7	20.0				29.8						$360	$30	$330
Valle Verde Elementary	Public	K-5	3275 Peachwillow Ln.	Walnut Creek	94598	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 939-5700	485	16	30.3	15.9%	227 (46.8%)	3 (0.6%)	53 (10.9%)	100 (20.6%)	0 (0.0%)	2 (0.4%)	100 (20.6%)	93.9	404^th of 5857 public elementary schools	93.1%		89	747^th of 5869 public elementary schools	87.3%	343	68.9		68.9	68.5	70.1	78.7				72.0	79.2	84.1	75.4				80.1	96.5					$150	$150	$00
Woodside Elementary	Public	K-5	761 San Simeon Dr.	Concord	94518	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 689-7671	289	11	25.6	60.6%	85 (29.4%)	7 (2.4%)	116 (40.1%)	36 (12.5%)	0 (0.0%)	3 (1.0%)	42 (14.5%)	40.1	3213^th of 5857 public elementary schools	45.1%		46.9	2744^th of 5869 public elementary schools	53.2%	469	36.1		36.1	36.2	38.9	40.0				38.1	27.7	39.4	36.1				33.6	96.5					$602	$00	$602
Eagle Peak Montessori	Public, Charter	1-8	800 Hutchinson Rd.	Walnut Creek	94598	Contra Costa County	Mt. Diablo Unified	Yes	(n/a)	No	(n/a)	(925) 946-0994	301	10	30.1	7.6%	102 (33.9%)	3 (1.0%)	66 (21.9%)	59 (19.6%)	1 (0.3%)	0 (0.0%)	70 (23.3%)	58.7	2135^th of 5857 public elementary schools	63.5%		74.1	1409^th of 5869 public elementary schools	76.0%	726	55.6	75.9	64.6	48.7	50.0	69.4	64.3	79.4	93.1	65.1	48.7	26.9	22.2	39.3	52.9	48.3	38.5						$08	$08	$00
El Monte Elementary	Public	K-5	1400 Dina Dr.	Concord	94518	Contra Costa County	Mt. Diablo Unified	No	(n/a)	No	(n/a)	(925) 685-3113	418	18	23.2	64.6%	81 (19.4%)	13 (3.1%)	198 (47.4%)	55 (13.2%)	2 (0.5%)	4 (1.0%)	65 (15.6%)	36.2	3461^st of 5857 public elementary schools	40.9%		25.7	4304^th of 5869 public elementary schools	26.7%	843	25.5		25.5	29.3	39.4	40.0				36.3	31.2	33.3	39.2				34.2	97.5	97.5	97.5	97.5	97.5	$265	$00	$265

Frequently Asked Questions about Mt. Diablo Elementary

What is the racial makeup of Mt. Diablo Elementary?

Students at Mt. Diablo Elementary are 52% White, 18% Two or more races, 17% Hispanic, 12% Asian.

How many students attend Mt. Diablo Elementary?

In the 2024-25 school year, 739 students attended Mt. Diablo Elementary.

Is Mt. Diablo Elementary a good school?

Mt. Diablo Elementary ranks 815^th of 5857 California elementary schools. SchoolDigger rates this school 4 stars out of 5.

What district is Mt. Diablo Elementary in?

Mt. Diablo Unified

What schools do graduates of Mt. Diablo Elementary attend?

Students who attend Mt. Diablo Elementary usually go on to attend:

Middle : Diablo View Middle
High : College Park High
High : Concord High
High : Mt. Diablo High
High : Northgate High
High : Ygnacio Valley High

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Latest California data All new data »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

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.