Needs Improvement
#8748 of 9,539 schools in CA
Black Diamond Middle
Middle School · Antioch Unified
4730 Sterling Hill Dr., Antioch, CA 94531
Enrollment
343
Student-Teacher
19.1:1
Score
3.8
Grades
7th – 8th
Enrollment
343
Student-Teacher
19.1:1
Score
3.8
Grades
7th – 8th
Data vintage
2022-23
Data vintage2022-23
How this school compares
California schools
#8,748 of 9,539
In Antioch
#17 of 27
public schools
In district
#15 of 25
Antioch Unified
School environment
7.2 / 10
Very Good
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Black Diamond Middle
Middle School in Antioch · grades 7th – 8th. Start here, then compare fit against nearby and district options.
Thomas Gaines Virtual Academy
0.0 mi away. Use as a geographic alternative in the same move search.
Jack London Elementary
0.5 mi away. Use as a geographic alternative in the same move search.
About Black Diamond Middle
Black Diamond Middle is a public middle school in Antioch, CA, part of Antioch Unified. Black Diamond Middle serves approximately 343 students, and covers grades 7th-8th, and has a 19.1:1 student-teacher ratio. Black Diamond Middle has a current MySchoolScout rating of 3.8 out of 10 and ranks #8,748 of 9,539 schools in CA.
Structured state assessment records for Black Diamond Middle show 22% math proficiency (multi-year average, 2009-2024) and 31% reading/ELA proficiency (multi-year average, 2009-2024).
- This school 3.8 · Needs Improvement
- District avg 3.8
- CA avg 6.5
What Parents Should Know
41% of students at Black Diamond Middle were chronically absent in the 2022-23 school year, above the national average. Chronic absenteeism means missing 15 or more school days, and at high rates it drags on classroom pacing for everyone. Ask what the school does to help families get kids to class consistently.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Black Diamond Middle — Students at Black Diamond Middle score 18% proficient, which is below what's typical for similar communities (expected: 34%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
72%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 30 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 2.2/10.
How Black Diamond Middle Compares
See how Black Diamond Middle performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Programs & Offerings
Data as of 2021-22 · Source: CRDC via Urban Institute · Learn more
Location
4730 Sterling Hill Dr., Antioch, CA 94531
Nearby Alternatives
Families considering Black Diamond Middle may also want to explore other middle schools in the area. Thomas Gaines Virtual Academy (rated 8.1/10), which scores notably higher. Another option is Dozier-Libbey Medical High (rated 7.5/10, 1.5 miles away), which scores notably higher. Additionally, HERITAGE BAPTIST ACADEMY (rated 7.2/10, 1.3 miles away), which scores notably higher. For more schools in Antioch, see our Antioch schools guide .
Nearby Schools
20 within 2.6 mi| School | Distance | Rating |
|---|---|---|
| Thomas Gaines Virtual Academy Antioch | 0.0 mi | 8.1 |
| Jack London Elementary Antioch | 0.5 mi | 3.7 |
| Deer Valley High Antioch | 0.6 mi | 5.9 |
| New Light Education Antioch | 0.6 mi | — |
| Successful Independent Study High School Antioch | 0.7 mi | — |
| Diablo Vista Elementary Antioch | 0.8 mi | 4.2 |
| SIERRA SCHOOLS AT ANTIOCH- DIABLO VISTA Antioch | 0.9 mi | — |
| Carmen Dragon Elementary Antioch | 0.8 mi | 3.7 |
| HILLTOP CHRISTIAN SCHOOL Antioch | 0.8 mi | 6.2 |
| Grant Elementary Antioch | 1.1 mi | 3.2 |
| HERITAGE BAPTIST ACADEMY Antioch | 1.3 mi | 7.2 |
| Heritage Baptist Academy Antioch | 1.3 mi | — |
| Dozier-Libbey Medical High Antioch | 1.5 mi | 7.5 |
| Lone Tree Elementary Antioch | 1.3 mi | 2.9 |
| Muir (John) Elementary Antioch | 1.6 mi | 3.1 |
| GOLDEN HILLS CHRISTIAN SCHOOL Brentwood | 1.7 mi | 6.1 |
| Dallas Ranch Middle Antioch | 1.7 mi | 3.5 |
| Pioneer Elementary Brentwood | 2.0 mi | 5.8 |
| Cornerstone Christian School Antioch | 2.5 mi | — |
| CORNERSTONE CHRISTIAN SCHOOL Antioch | 2.6 mi | 7.1 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94531 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$123,428
Median Home Value
$660,200
Median Rent
$3,063/mo
Population
44,746
College Educated
31.6%
Homeownership
72.3%
Avg Commute
46.5 min
Poverty Rate
7.2%
Median Age
38.9
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| ACE Inspire Academy San Jose, CA | 3.7 |
| Cherry Avenue Middle Tulare, CA | 3.7 |
| McKinleyville Middle Mckinleyville, CA | 3.7 |
| Williams Upper Elementary Williams, CA | 3.7 |
| ACE Esperanza Middle San Jose, CA | 3.9 |
| Mare Island Technology Academy Vallejo, CA | 3.9 |
Frequently Asked Questions
Common questions about Black Diamond Middle
What grades does Black Diamond Middle serve?
Black Diamond Middle serves students in grades 7th through 8th.
How many students attend Black Diamond Middle?
Black Diamond Middle has an enrollment of approximately 343 students.
What is the student-teacher ratio at Black Diamond Middle?
The student-teacher ratio at Black Diamond Middle is 19.1:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Black Diamond Middle rank in CA?
Black Diamond Middle ranks #8,748 of 9,539 schools in CA.
What is Black Diamond Middle's MySchoolScout rating?
Black Diamond Middle has a current MySchoolScout rating of 3.8 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.
What are the test scores at Black Diamond Middle?
Based on loaded state assessment records, Black Diamond Middle has 22% math proficiency (multi-year average, 2009-2024) and 31% reading/ELA proficiency (multi-year average, 2009-2024).
Is Black Diamond Middle a charter school?
No, Black Diamond Middle is not a charter school. It is a traditional public school operated by the local school district.
Is Black Diamond Middle a Title I school?
No, Black Diamond Middle is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Black Diamond Middle?
72.0% of students at Black Diamond Middle qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Neighborhood Context
Powered by 
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 7th – 8th
- Enrollment
- 343
- Student-Teacher Ratio
- 19.1:1
- Teachers (FTE)
- 18
- Free/Reduced Lunch
- 72.0%
- Type
- regular
- Setting
- Large Suburb
- County
- Contra Costa County
- Chronic Absenteeism (SY 2022-23)
- 40.8%
- Phone
- (925) 779-7460
Resources & Links
District
Antioch Unified- District Enrollment
- 15,034
- Schools in District
- 25
- Per-Pupil Spending
- $17,933
- District Rank
- #15 of 25
How we rate schools
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