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Mary Casey Black Elementary

Q: Is Mary Casey Black Elementary a good school?

Mary Casey Black Elementary ranks 2512 th of 5857 California elementary schools. SchoolDigger rates this school 3 stars out of 5.

Public Grades K-5

2512^th

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 57% of California elementary schools

Summary

Mary Casey Black Elementary is a K-5 public school serving about 680 students in the Brentwood Union school district, which is a highly regarded district ranking in the top 30% statewide.

The school is on a positive trajectory, having recently improved its statewide ranking from the 42nd to the 57th percentile, and it excels in getting students to school regularly with a chronic absenteeism rate that is better than both the district and state averages. However, it is important for parents to know that Mary Casey Black Elementary currently ranks lowest in academic performance among the elementary schools within its own district, such as Loma Vista Elementary and Ron Nunn Elementary. Its performance has been volatile from year to year, and test scores show a pattern of declining proficiency in both English and Math as students move from 3rd to 5th grade.

Despite internal district comparisons, the school performs better than many elementary schools in neighboring districts like Oakley Union Elementary. The school spends more per student than some local peers and has shown notable effectiveness with specific student programs. Its dramatic improvement in student attendance is a significant strength, suggesting a strong, supportive school environment that is helping students show up ready to learn.

680

Students ?

25.1

Student/teacher ratio ?

$12,829

Per pupil spending ?

47.1%

Free/discounted lunch ?

480 Farmington Dr.
Brentwood, CA 94513-5548

(925) 513-6430

District: Brentwood Union

Students who attend Mary Casey Black Elementary usually attend:

Middle:	Edna Hill Middle
High:	Liberty High

Racial breakdown:

Hispanic:

44.6%

White:

23.1%

Asian:

15.0%

See top rated California elementary schools

Compare Mary Casey Black Elementary to nearby elementary schools!

At a glance

▲ Ranking trend: Improving — 42nd percentile in 2015 → 57th in 2025

Strengths

✓Ranking is trending up — up 15 percentile points since 2015

✓Above the California median (57th percentile)

Worth a look

!Some student groups rank well below the school's overall statewide standing

!Near the bottom of Brentwood Union's ranking

!Large classes — about 25 students per teacher

Students meeting standards (2024-2025) ?

This school42%

District avg49%

California avg41%

2,512^th of 5,857

California public elementary schools ?

Top 43%▲ up 15 pts since 2015

From bottom 42% (2015) to top 43% (2025)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

8^th of 8Elementary Schools in the Brentwood Union

411^th of 1,543Brentwood Union among California districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	51.8	2512 of 5857	57.1%	★★★☆☆
2024	36.4	3412 of 5869	41.9%	★★☆☆☆
2023	40.8	3072 of 5859	47.6%	★★☆☆☆
2022	47.8	2656 of 5883	54.9%	★★★☆☆
2019	41.5	3099 of 5789	46.5%	★★☆☆☆
2018	38.3	3263 of 5662	42.4%	★★☆☆☆
2017	46.6	2733 of 5692	52.0%	★★★☆☆
2016	41.2	3000 of 5614	46.6%	★★☆☆☆
2015	35.7	3274 of 5611	41.7%	★★☆☆☆

African American

Year	Avg score	Statewide rank	California percentile	Rating
2023	66.2	169 of 661	74.4%	★★★★☆
2022	58.1	197 of 663	70.3%	★★★★☆
2019	35.5	480 of 747	35.7%	★★☆☆☆

Asian

Year	Avg score	Statewide rank	California percentile	Rating
2024	20.5	1007 of 1205	16.4%	★☆☆☆☆
2023	41.6	831 of 1190	30.2%	★★☆☆☆

Disabled

Year	Avg score	Statewide rank	California percentile	Rating
2022	41.0	1038 of 2227	53.4%	★★★☆☆
2019	40.3	1285 of 2585	50.3%	★★★☆☆
2018	31.2	1382 of 2128	35.1%	★★☆☆☆

English Language Learner

Year	Avg score	Statewide rank	California percentile	Rating
2024	51.5	1103 of 3162	65.1%	★★★☆☆
2023	34.4	2207 of 3245	32.0%	★★☆☆☆
2022	55.2	960 of 3311	71.0%	★★★★☆
2019	29.5	2538 of 3275	22.5%	★☆☆☆☆
2018	41.1	1704 of 3246	47.5%	★★☆☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	51.9	2350 of 5597	58.0%	★★★☆☆
2024	43.6	2821 of 5612	49.7%	★★☆☆☆
2023	40.2	3002 of 5609	46.5%	★★☆☆☆
2022	55.1	2152 of 5635	61.8%	★★★☆☆
2019	38.9	3180 of 5492	42.1%	★★☆☆☆
2018	36.8	3298 of 5413	39.1%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	54.4	2009 of 5107	60.7%	★★★☆☆
2024	38.4	3087 of 5107	39.6%	★★☆☆☆
2023	36.2	3199 of 5087	37.1%	★★☆☆☆
2022	52.7	2032 of 5084	60.0%	★★★☆☆
2019	34.4	3359 of 4963	32.3%	★★☆☆☆
2018	31.7	3441 of 4830	28.8%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2025	37.5	3384 of 5460	38.0%	★★☆☆☆
2024	17.0	5014 of 5517	9.1%	☆☆☆☆☆
2023	22.2	4520 of 5363	15.7%	★☆☆☆☆
2022	41.9	2840 of 5264	46.0%	★★☆☆☆
2019	28.7	3958 of 5173	23.5%	★☆☆☆☆
2018	27.2	3979 of 5084	21.7%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	50.6	2471 of 5628	56.1%	★★★☆☆
2024	29.2	3896 of 5643	31.0%	★★☆☆☆
2023	41.3	2969 of 5638	47.3%	★★☆☆☆
2022	38.5	3102 of 5663	45.2%	★★☆☆☆
2019	43.7	2799 of 5510	49.2%	★★☆☆☆
2018	39.4	3086 of 5431	43.2%	★★☆☆☆

Multi-racial

Year	Avg score	Statewide rank	California percentile	Rating
2025	12.2	643 of 718	10.4%	★☆☆☆☆
2024	7.3	633 of 670	5.5%	☆☆☆☆☆
2023	8.6	630 of 669	5.8%	☆☆☆☆☆
2022	15.5	536 of 610	12.1%	★☆☆☆☆

Special Education

Year	Avg score	Statewide rank	California percentile	Rating
2025	39.2	1494 of 2847	47.5%	★★☆☆☆
2024	38.6	1397 of 2635	47.0%	★★☆☆☆
2023	31.6	1575 of 2420	34.9%	★★☆☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	46.8	1490 of 2598	42.6%	★★☆☆☆
2024	20.1	2220 of 2651	16.3%	★☆☆☆☆
2023	23.8	2134 of 2661	19.8%	★☆☆☆☆
2022	31.0	1986 of 2726	27.1%	★☆☆☆☆
2019	34.5	2029 of 2834	28.4%	★☆☆☆☆
2018	34.3	1973 of 2737	27.9%	★☆☆☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

African American (2023)74th percentile+27 vs school

English Language Learner (2024)65th percentile+23 vs school

Hispanic (2025)61st percentile+4 vs school

Female (2025)58th percentile~ school

Male (2025)56th percentile~ school

Disabled (2022)53rd percentile~ school

Special Education (2025)48th percentile-10 vs school

White (2025)43rd percentile-14 vs school

Low Socio Economic Status (2025)38th percentile-19 vs school

Asian (2024)16th percentile-25 vs school

Multi-racial (2025)10th percentile-47 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy50%~ state avg

Mathematics39%~ state avg

Science30%-3 vs state

★

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Schools Near Mary Casey Black Elementary

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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 Immunizations Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				CAST Science (2025)			Smarter Balanced Assessments English Language Arts/Literacy (2025)							Smarter Balanced Assessments Mathematics (2025)							% Completely Immunized (2022)	% Polio (2022)	% Hepatitis B (2022)	% Varicella (2022)	% DTP (2022)	% MMR (2022)	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/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	CAST Science 5th Grade	CAST Science 8th Grade	CAST Science All Grades	Smarter Balanced Assessments English Language Arts/Literacy 3rd Grade	Smarter Balanced Assessments English Language Arts/Literacy 4th Grade	Smarter Balanced Assessments English Language Arts/Literacy 5th Grade	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 3rd Grade	Smarter Balanced Assessments Mathematics 4th Grade	Smarter Balanced Assessments Mathematics 5th Grade	Smarter Balanced Assessments Mathematics 6th Grade	Smarter Balanced Assessments Mathematics 7th Grade	Smarter Balanced Assessments Mathematics 8th Grade	Smarter Balanced Assessments Mathematics All Grades	% Completely Immunized KG	% Polio KG	% Hepatitis B KG	% Varicella KG	% DTP KG	% MMR KG	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Mary Casey Black Elementary	Public	K-5	480 Farmington Dr.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6430	680	27	25.1	47.1%	157 (23.1%)	33 (4.9%)	303 (44.6%)	102 (15.0%)	1 (0.1%)	2 (0.3%)	82 (12.1%)	51.8	2512^th of 5857 public elementary schools	57.1%		36.4	3412^th of 5869 public elementary schools	41.9%	900	29.9		29.9	57.3	47.3	44.3				49.7	50.0	37.4	29.9				39.1	95.9	97.5	98.4	96.7	97.5	97.5	$12,829	$11,360	$1,469
Marsh Creek Elementary	Public	K-5	601 Grant St.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6420	550	24	22.9	52.4%	105 (19.1%)	56 (10.2%)	240 (43.6%)	72 (13.1%)	4 (0.7%)	9 (1.6%)	64 (11.6%)	55.6	2264^th of 5857 public elementary schools	61.3%		63.3	1915^th of 5869 public elementary schools	67.4%	349	39.5		39.5	41.7	40.3	58.6				49.1	53.4	27.3	39.1				39.6							$15,382	$13,580	$1,802
Isaac R. Montanez Elementary	Public	K-5	2340 Smith Rd.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6100	444	18	24.6	33.3%	107 (24.1%)	27 (6.1%)	124 (27.9%)	138 (31.1%)	1 (0.2%)	3 (0.7%)	44 (9.9%)								(n/a)	47.7		47.7	54.8	64.2	47.7				57.1	66.2	69.1	30.2				59.6							$15,525	$13,590	$1,935
Garin Elementary	Public	K-5	250 First St.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6370	785	32	24.5	41.5%	244 (31.1%)	59 (7.5%)	286 (36.4%)	112 (14.3%)	3 (0.4%)	5 (0.6%)	76 (9.7%)	62	1967^th of 5857 public elementary schools	66.4%		63.9	1882^nd of 5869 public elementary schools	67.9%	85	30.5		30.5	61.7	59.6	50.8				57.3	62.2	48.0	25.2				44.7	95.9	95.9		96.7	95.9	96.7	$13,881	$12,540	$1,341
Brentwood Elementary	Public	K-5	200 Griffith Ln.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6360	811	33	24.9	45.6%	222 (27.4%)	76 (9.4%)	317 (39.1%)	101 (12.5%)	2 (0.2%)	7 (0.9%)	86 (10.6%)	59.4	2094^th of 5857 public elementary schools	64.2%		61.6	1997^th of 5869 public elementary schools	66.0%	97	33.3		33.3	51.1	51.8	53.0				52.0	55.6	43.3	35.6				44.9	95.8	97.9		95.8	97.2	97.2	$14,249	$13,014	$1,235
Gehringer Elementary	Public	K-5	100 Simoni Ranch Rd.	Oakley	94561	Contra Costa County	Oakley Union Elementary	No	(n/a)	No	(n/a)	(925) 625-7070	663	28	23.5	44.3%	148 (22.3%)	52 (7.8%)	350 (52.8%)	54 (8.1%)	0 (0.0%)	0 (0.0%)	59 (8.9%)	43.3	2987^th of 5857 public elementary schools	49.0%		39.2	3222^nd of 5869 public elementary schools	45.1%	235	23.7		23.7	33.0	47.4	50.5				43.2	34.0	44.3	32.3				36.8							$19,057	$18,240	$817
Knightsen Elementary	Public	K-8	1923 Delta Rd.	Knightsen	94548	Contra Costa County	Knightsen Elementary	No	(n/a)	No	(n/a)	(925) 625-0073	316	14	23.0	38.0%	130 (41.1%)	5 (1.6%)	157 (49.7%)	1 (0.3%)	3 (0.9%)	0 (0.0%)	20 (6.3%)	39.5	3258^th of 5857 public elementary schools	44.4%		33.7	3629^th of 5869 public elementary schools	38.2%	371	31.4	45.7	39.5	40.7	42.4	40.0	35.9	46.9	58.7	44.3	48.2	42.4	11.4	28.3	25.0	41.3	32.3							$28,786	$27,324	$1,462
Ron Nunn Elementary	Public	K-5	1755 Central Blvd.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6380	702	28	25.0		205 (29.2%)	51 (7.3%)	227 (32.3%)	126 (17.9%)	4 (0.6%)	3 (0.4%)	86 (12.3%)	66	1791^st of 5857 public elementary schools	69.4%		68.1	1680^th of 5869 public elementary schools	71.4%	111	33.3		33.3	64.5	56.0	60.3				60.1	64.5	39.2	38.6				46.5							$14,206	$12,932	$1,274
Loma Vista Elementary	Public	K-5	2110 San Jose Ave.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6390	749	30	25.3		214 (28.6%)	50 (6.7%)	195 (26.0%)	210 (28.0%)	3 (0.4%)	1 (0.1%)	76 (10.1%)	76.7	1297^th of 5857 public elementary schools	77.9%		69.4	1618^th of 5869 public elementary schools	72.4%	321	36.7		36.7	59.8	62.2	72.7				64.6	59.0	55.1	53.5				56.1	96.6				96.6		$13,659	$12,462	$1,197
Pioneer Elementary	Public	K-5	2010 Shady Willow Ln.	Brentwood	94513	Contra Costa County	Brentwood Union	No	(n/a)	No	(n/a)	(925) 513-6410	859	33	26.3		193 (22.5%)	89 (10.4%)	215 (25.0%)	259 (30.2%)	5 (0.6%)	2 (0.2%)	96 (11.2%)	60.5	2038^th of 5857 public elementary schools	65.2%		65.4	1796^th of 5869 public elementary schools	69.4%	242	37.4		37.4	51.7	56.1	54.8				54.3	45.6	46.2	35.5				42.4	92.0	94.0	98.0	94.7	94.0	93.3	$13,076	$12,008	$1,068

Frequently Asked Questions about Mary Casey Black Elementary

What schools do graduates of Mary Casey Black Elementary attend?

Students who attend Mary Casey Black Elementary usually go on to attend:

Middle : Edna Hill Middle
High : Liberty High

Is Mary Casey Black Elementary a good school?

Mary Casey Black Elementary ranks 2512^th of 5857 California elementary schools. SchoolDigger rates this school 3 stars out of 5.

What is the racial makeup of Mary Casey Black Elementary?

Students at Mary Casey Black Elementary are 45% Hispanic, 23% White, 15% Asian, 12% Two or more races, 5% African American.

What district is Mary Casey Black Elementary in?

Brentwood Union

How many students attend Mary Casey Black Elementary?

In the 2024-25 school year, 680 students attended Mary Casey Black Elementary.

Rate Mary Casey Black Elementary!

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Latest California data All new data »

2024–25 school spending dataJul 1, 2026

2024–25 attendance dataMar 13, 2026

2024–25 CSA Spanish test scoresDec 22, 2025

2024–25 dropout rates & graduation ratesNov 14, 2025

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.