Average
#3677 of 9,533 schools in CA
Top 39% in state
Black Diamond Middle
Middle School · Antioch Unified
4730 Sterling Hill Dr., Antioch, CA 94531
Enrollment
343
Student-Teacher
19.1:1
Score
6.8
Grades
7th – 8th
Enrollment
343
Student-Teacher
19.1:1
Score
6.8
Grades
7th – 8th
Updated
2022-23
Updated 2022-23
How this school compares
In Antioch
#3 of 27
public schools
California middle schools
#525 of 1,349
In district
#3 of 25
Antioch Unified
Academic growth
9.2 / 10
Exceptional
About Black Diamond Middle
Black Diamond Middle is a regular public middle school located in Antioch, California. Serving students from seventh to eighth grade, the school has an enrollment of 343 students and employs 18 full-time equivalent teachers. With a student-to-teacher ratio of 19.1:1, Black Diamond Middle provides personalized attention to its students.
The school's MySchoolScout rating is 4.5 out of 10, reflecting room for improvement in academic performance, where the state ranking stands at 6146 out of 9566 schools in California (36th percentile) and an academic score of 2.3/10. In terms of proficiency rates, only 21% of students are proficient or above in English Language Arts/Reading, while a mere 12% meet the standards for mathematics. Despite these challenges, Black Diamond Middle is focused on supporting student development and growth.
The school is situated in a large suburban area, offering a community environment that encourages engagement with local resources and activities.
What Parents Should Know
While current test scores at Black Diamond Middle are below average, the school shows strong growth metrics — meaning students are making above-average progress year over year. This upward trajectory can be a positive indicator for families who value a school's ability to help students improve, even if absolute scores haven't caught up yet.
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 8 test records from CA state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
Source: EdFacts (NCES) and state assessment data. Growth score: 9.2/10.
How Black Diamond Middle Compares
See how Black Diamond Middle performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has improved from 8% (2019) to 13.06% (2024). Reading/ELA proficiency has improved from 18% (2019) to 22.16% (2024).
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. Dozier-Libbey Medical High (rated 8.2/10, 1.5 miles away), which scores notably higher. Another option is HERITAGE BAPTIST ACADEMY (rated 7.2/10, 1.3 miles away), which scores slightly higher. Additionally, CORNERSTONE CHRISTIAN SCHOOL (rated 7.1/10, 2.6 miles away), with a very similar rating. 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 | 6.2 |
| Jack London Elementary Antioch | 0.5 mi | 4.5 |
| Deer Valley High Antioch | 0.6 mi | 5.0 |
| New Light Education Antioch | 0.6 mi | — |
| Successful Independent Study High School Antioch | 0.7 mi | — |
| Diablo Vista Elementary Antioch | 0.8 mi | 6.3 |
| SIERRA SCHOOLS AT ANTIOCH- DIABLO VISTA Antioch | 0.9 mi | — |
| Carmen Dragon Elementary Antioch | 0.8 mi | 6.8 |
| HILLTOP CHRISTIAN SCHOOL Antioch | 0.8 mi | 6.2 |
| Grant Elementary Antioch | 1.1 mi | 6.3 |
| HERITAGE BAPTIST ACADEMY Antioch | 1.3 mi | 7.2 |
| Heritage Baptist Academy Antioch | 1.3 mi | — |
| Dozier-Libbey Medical High Antioch | 1.5 mi | 8.2 |
| Lone Tree Elementary Antioch | 1.3 mi | 4.5 |
| Muir (John) Elementary Antioch | 1.6 mi | 6.0 |
| GOLDEN HILLS CHRISTIAN SCHOOL Brentwood | 1.7 mi | 6.1 |
| Dallas Ranch Middle Antioch | 1.7 mi | 5.4 |
| Pioneer Elementary Brentwood | 2.0 mi | 5.5 |
| 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
Community Profile
The community surrounding Black Diamond Middle has a median household income of $123,428. It is an area where 32% of adults hold a bachelor's degree or higher. The median home value in the area is $660,200, with a median rent of $3,063/month. The local poverty rate of 7.2% is relatively low. The average commute in the area is 47 minutes, which is above the national average. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Bret Harte Middle Oakland, CA | 6.8 |
| Charles D. Jones Middle Baldwin Park, CA | 6.8 |
| Marina del Rey Middle Los Angeles, CA | 6.8 |
| PUC Nueva Esperanza Charter Academy Burbank, CA | 6.8 |
| Palermo Palermo, CA | 6.8 |
| Rio Linda Preparatory Academy Rio Linda, CA | 6.8 |
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 is ranked #3677 out of 9,533 schools in CA.
What is Black Diamond Middle's MySchoolScout rating?
Black Diamond Middle has a composite rating of 6.8 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Black Diamond Middle?
Based on the most recent state assessment data, Black Diamond Middle has 11.8% math proficiency and 21.1% reading/ELA proficiency.
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.
Explore More Schools
Neighborhood Context
- City Safety
- High (3,815/100K)
FBI UCR 2024. City-level (Antioch). Data >1 year old.
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
- Phone
- (925) 779-7460
- Data Year
- 2023–2024
Resources & Links
District
Antioch Unified- District Enrollment
- 15,034
- Schools in District
- 25
- Per-Pupil Spending
- $17,933
- District Rank
- #3 of 25
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
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