How does Mary Casey Black Elementary compare to other elementary schools in Brentwood?

Mary Casey Black Elementary has a SchoolScope composite score of 43.7/100, placing it at the 50th percentile statewide. 20% of students exceed standard, with a total of 1,136 students tested across grades and subjects.

What percentage of students exceed standards at Mary Casey Black Elementary?

19.9% of students at Mary Casey Black Elementary exceed the state standard on CAASPP assessments, while 44.4% meet or exceed it. The gap between these two numbers reveals whether the school pushes students beyond basic proficiency.

Is Mary Casey Black Elementary improving or declining?

Mary Casey Black Elementary's proficiency rate decreases by 16.5 percentage points from grade 3 to grade 5, suggesting the school is not sustaining early academic gains.

What is the chronic absenteeism rate at Mary Casey Black Elementary?

12.3% of students at Mary Casey Black Elementary are chronically absent (missing 10% or more of school days). This metric reflects school culture and family engagement, and is weighted at 15% in our composite score.

Mary Casey Black Elementary

Brentwood Union Brentwood Contra Costa County 94513

Composite Score

out of 100

State Percentile

of elementary schools

State Rank

1,136 students tested

School overview

Enrollment

703 students

Student-Teacher Ratio

26:1

Free/Reduced Lunch

27%

Teachers

27 full-time

Student demographics

Hispanic 40.7%

White 23.6%

Asian 9.1%

Black 6.3%

Other 20.3%

Performance breakdown

Performance breakdown for Mary Casey Black Elementary
Category	Percentage
Exceeded Standard	19.9%
Met Standard	24.4%
Below Standard	55.6%

Exceeded

19.9%

Met

24.4%

Below

55.6%

What other rankings don't show you

Most rating sites report "44% proficient" for Mary Casey Black Elementary and stop there. Here's what that number hides:

19.9% of students exceeded standard while 24.4% merely met it. That exceeded rate is near the state average of 21.0%. That's 2.9 points below the Brentwood Union district average of 22.8%. Compared to the 9 nearby schools within ~3 miles, this exceeded rate is 2.9 points higher (vs 17.0% average). The gap between "met" and "exceeded" is the difference between a school that clears the bar and one that raises it.

Proficiency drops by 16.5 percentage points from grade 3 to grade 5 — a signal that the school may not be sustaining early gains.

Chronic absenteeism is 12.3%, better than the state average of 18.7%.