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Middle Schools in Antioch Unified

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At a glance

DistrictAntioch Unified1339^th of 1,530 California districtsFull district overview →

Schools

2,873

Students

Top rankedDallas Ranch Middle2277^th of 2,740 California middle schools

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Biggest riser

Dallas Ranch Middle up 95 spots statewide this year

Compare California districts →See the top-ranked California schools →

Summary:

Antioch Unified has four middle schools serving grades 6–8. In 2025–2026, the schools’ average proficiency was 21% in English language arts (ELA), 10% in math, and 15% in science, compared with state results of 49%, 38%, and 36%. Every school fell below the state in all three subjects, and even the area’s strongest school result in each subject remained below the state comparison.

Dallas Ranch Middle led ELA at 31% and math at 14%, while Park Middle led science at 23%. Antioch Middle had the lowest results in every subject: 12% in ELA, 6% in math, and 10% in science. Black Diamond Middle was second in ELA at 20%, but third in math and science. The spread between the highest and lowest school results was 19 points in ELA, 8 in math, and 12 in science, so results vary meaningfully by school.

Recent progress is mixed: from 2024–2025 to 2025–2026, the four-school average fell 1 point in ELA, rose 1 point in math, and rose 4 points in science. SchoolDigger’s 2025–2026 statewide rankings place Dallas Ranch in the 17th percentile, Park in the 10th, Black Diamond in the 5th, and Antioch in the 2nd. Context also differs: Dallas Ranch has the highest student-teacher ratio at 23.8, yet leads ELA and math; Park has the largest enrollment, 1,055, and leads science. All four schools report free/reduced lunch eligibility for 2024–2025: 78% at Dallas Ranch, 89% at Park, 94% at Antioch, and 81% at Black Diamond; these are school context figures, not explanations for results.

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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 Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				CAST Science (2026)		Smarter Balanced Assessments English Language Arts/Literacy (2026)				Smarter Balanced Assessments Mathematics (2026)				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/reduced lunch (2024-25)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	CAST Science 8th Grade	CAST Science All Grades	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 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
Antioch Middle	Public	6-8	1500 D St.	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7400	665	31	21.5	93.5%	33 (5.0%)	125 (18.8%)	433 (65.1%)	35 (5.3%)	4 (0.6%)	11 (1.7%)	24 (3.6%)	6.8	2682^nd of 2740 public middle schools	2.1%		8.7	2654^th of 2761 public middle schools	3.9%	28	10.3	10.3	8.3	12.9	13.5	11.6	6.1	9.2	3.5	6.2	$20,957	$1,859	$19,098
Park Middle	Public	6-8	1 Spartan Way	Antioch	94509	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7420	1,055	48	22.2	89.3%	107 (10.1%)	218 (20.7%)	609 (57.7%)	61 (5.8%)	5 (0.5%)	11 (1.0%)	44 (4.2%)	13.9	2469^th of 2740 public middle schools	9.9%		13.6	2493^rd of 2761 public middle schools	9.7%	24	22.8	22.8	18.2	20.1	21.3	19.9	16.6	11.5	9.0	12.4	$20,251	$2,059	$18,192
Black Diamond Middle	Public	6-8	4730 Sterling Hill Dr.	Antioch	94531	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7460	358	17	21.2	81.0%	30 (8.4%)	117 (32.7%)	150 (41.9%)	32 (8.9%)	2 (0.6%)	4 (1.1%)	23 (6.4%)	10.1	2592^nd of 2740 public middle schools	5.4%		11.9	2552^nd of 2761 public middle schools	7.6%	40	11.1	11.1		22.3	20.3	21.3		9.7	7.3	8.5	$23,100	$2,134	$20,966
Dallas Ranch Middle	Public	6-8	1401 Mount Hamilton Dr.	Antioch	94531	Contra Costa County	Antioch Unified	No	(n/a)	No	(n/a)	(925) 779-7485	795	33	23.8	78.2%	44 (5.5%)	233 (29.3%)	328 (41.3%)	133 (16.7%)	3 (0.4%)	10 (1.3%)	42 (5.3%)	18.7	2277^th of 2740 public middle schools	16.9%		16.6	2372^nd of 2761 public middle schools	14.1%	95	17.4	17.4	28.8	29.0	34.9	30.9	12.8	13.0	16.5	14.1	$21,149	$1,742	$19,407

Districts nearby

District	Distance	# of Schools	Statewide Rank
Brentwood Union	2.47 mi	12	436^th
Rocketship Delta Prep District	2.65 mi	1	995^th
Oakley Union Elementary	2.74 mi	9	1121^st
Antioch Charter Academy District	3.02 mi	1	895^th
Liberty Union High	3.06 mi	5	821^st

See the top CA California districts

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.