- Enrollment
- 1,223
- Students per teacher
- 24:1
- Resource Index
- 30/100
Elementary school (grades K-5) · Brentwood, CA
Mary Casey Black Elementary
Federal NCES profile for Mary Casey Black Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
2024-25 NCES dataElementary school (grades K-5)NCES 060591013420
👥 S:T ratio 0
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 17
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mary Casey Black Elementary earns 22/100 on the Resource Investment Index, with class sizes larger than 81% of California schools. It is also more racially and ethnically mixed than most California schools.
- #8 of 9
- elementary schools in Brentwood · Resource Index
- 22
- Resource Index · Lower
- 25.2:1
- large classes for California
- 31.0%
- free-lunch eligible
Mary Casey Black Elementary has class sizes larger than 81% of California schools. Computed live against every California school reporting to NCES.
By Resource Investment Index, Mary Casey Black Elementary ranks #8 of 9 elementary schools in Brentwood, CA.
School address
District: Brentwood Union Elementary · California
NCES ID 060591013420 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+2 students YoY
Mary Casey Black Elementary held near 703 students from 2022-23 to 2023-24 (+2 headcount).
Teacher FTE lost 27.5 → 27.2 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+2 students YoY 060591013420 · Brentwood, CA Elementary · MID · TRAD
680 enr · 25.2:1 · 31.0% lunch · RII 22
Nearest enrollment peer: William B. Bristow Middle (1,223 students)
Mary Casey Black Elementary held near 703 students from 2022-23 to 2023-24 (+2 headcount). Teacher FTE lost 27.5 → 27.2 across the same CCD years. Read with this school → · District book → · California schools → · Find another →
Mary Casey Black Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- William B. Bri
William B. Bristow Middle
1,223 students
- Adams (J. Doug
Adams (J. Douglas) Middle
1,197 students
- Edna Hill Midd
Edna Hill Middle
1,047 students
- R. Paul Krey E
R. Paul Krey Elementary
885 students
- Pioneer Elemen
Pioneer Elementary
859 students
- This school
Mary Casey Black Elementary
680 students
What this shows Mary Casey Black Elementary reports 680 students on the CCD universe file.
How Mary Casey Black Elementary compares
Mary Casey Black Elementary held steady on CCD headcount: ratios and free-lunch share vs California and U.S. means.
| Metric | This school | vs California | California avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 25.2:1 | ▲ 17% | 21.5:1 | 15.7:1 |
| Free-lunch eligible | 31.0% | ▼ 44% | 55.5% | 51.7% |
| Enrollment | 680 | top 25% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
25.2:1
Leaner classes than 5% of US schools, heavier class loads than most.
680
Bigger than 79% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
31.0%
free-lunch eligible
- 44% below the California average of 55.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
25.2:1
students per teacher
- 17% above state mean
Top 81% in California - lower ratio than 19% of state schools
Well above 20:1, one of the more stretched staffing loads nationally relative to enrollment.
Engagement
33.2%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$14,714
per pupil, district-wide
- below California avg of $18,665
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 680 students, the combined health-and-guidance staffing load for this school.
Discipline context
14
in-school suspensions + 13 out-of-school
Suspension rate: 2.1 per 100 students. Combined in-school and out-of-school rate: 4.0 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 44.6%
White 23.1%
Asian 15.0%
Two or More 12.1%
African American 4.9%
Native Hawaiian / Pacific Islander 0.3%
American Indian / Alaska Native 0.1%
Largest group: Hispanic or Latino at 44.6% of enrollment.
Student-body diversity index 70.8/100
Simpson diversity index - at 70.8, Mary Casey Black Elementary is more mixed than the California school average of 46.0.
Programs
Gifted & talented Yes
District finance for Brentwood Union Elementary reports $14,714 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mary Casey Black Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| William B. Bristow Middle | Larger | Lower economic need | Similar S:T ratio |
| Adams (J. Douglas) Middle | Larger | Lower economic need | Similar S:T ratio |
| Edna Hill Middle | Larger | Similar economic need | Lower S:T ratio |
| R. Paul Krey Elementary | Larger | Lower economic need | Higher S:T ratio |
| Pioneer Elementary | Larger | Lower economic need | Similar S:T ratio |
Comparisons are relative to Mary Casey Black Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,197
- Students per teacher
- 26:1
- Resource Index
- 30/100
- Enrollment
- 1,047
- Students per teacher
- 22.8:1
- Resource Index
- 28/100
- Enrollment
- 885
- Students per teacher
- 27.7:1
- Resource Index
- 28/100
- Enrollment
- 859
- Students per teacher
- 24.5:1
- Resource Index
- 26/100
Similar elementary schools in Brentwood
6 comparable elementary schools (grades K-5) serving the same city.
R. Paul Krey Elementary
Standard public school
885 students 27.7:1 students per teacher
Pioneer Elementary
Standard public school
859 students 24.5:1 students per teacher
Brentwood Elementary
Standard public school
811 students 26.2:1 students per teacher
Garin Elementary
Standard public school
785 students 27.1:1 students per teacher
Loma Vista Elementary
Standard public school
749 students 31.2:1 students per teacher
Ron Nunn Elementary
Standard public school
702 students 28.1:1 students per teacher
Nationwide elementary schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~680 students)
Similar student-teacher ratio (~25.2:1)
Frequently asked questions about Mary Casey Black Elementary
How many students attend Mary Casey Black Elementary?
Mary Casey Black Elementary has 680 students enrolled. It is an elementary school in Brentwood, CA. CCD year-over-year: 701 (2022-23) → 703 (2023-24), nearly flat (+2).
What is the student-teacher ratio at Mary Casey Black Elementary?
The student-teacher ratio at Mary Casey Black Elementary is 25.2:1, which is 17% higher than the California average of 21.5:1 and 61% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mary Casey Black Elementary?
31.0% of students at Mary Casey Black Elementary are eligible for free lunch, compared to the California average of 55.5%.
What is the racial and ethnic makeup of Mary Casey Black Elementary?
The largest demographic group at Mary Casey Black Elementary is Hispanic or Latino at 44.6% of enrollment, in Brentwood, CA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 70.8/100.
What is the Resource Investment Index for Mary Casey Black Elementary?
Mary Casey Black Elementary has a Resource Investment Index of 22/100 (lower reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mary Casey Black Elementary rank among elementary schools in Brentwood?
By Resource Investment Index, Mary Casey Black Elementary ranks #8 of 9 elementary schools in Brentwood, CA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Brentwood on the city page.
What other schools are in Brentwood Union Elementary?
Besides Mary Casey Black Elementary, Brentwood Union Elementary also operates William B. Bristow Middle (1,223 students), Adams (J. Douglas) Middle (1,197 students), and Edna Hill Middle (1,047 students). See the Brentwood Union Elementary district page for the complete list.