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Old River Elementary

Q: Is Old River Elementary a good school?

Old River Elementary ranks 1899 th of 5857 California elementary schools. SchoolDigger rates this school 3 stars out of 5.

Public Grades K-8

1899^th

SchoolDigger Rank ?

of 5,857 California Elementary Schools

Better than 68% of California elementary schools

Summary

Old River Elementary is a public K-8 school in Brentwood, California, serving 309 students. The school is part of the Knightsen Elementary District, which is ranked 537 out of 1,565 districts in the state.

Old River Elementary consistently outperforms the district and state in academic assessments, with 55.39% of students proficient or better in English Language Arts and 51.23% in Mathematics, compared to 49.53% and 41.26% for the district, respectively. The school's performance in Science is also above average. While the Hispanic and male student populations excel, the white student population lags behind. Notably, the school has seen a significant decrease in chronic absenteeism, from 26.1% to 13.8% in the past two years, and a steady increase in spending per student, from $8,065 to $11,259.

Compared to nearby schools, Old River Elementary outperforms the Knightsen Elementary but faces competition from high-performing schools in the Brentwood Union and Byron Union districts, such as Brentwood Elementary and Discovery Bay Elementary. The school's improvement in chronic absenteeism and increased spending per student are also noteworthy.

332

Students ?

22.5

Student/teacher ratio ?

$21,678

Per pupil spending ?

15.4%

Free/discounted lunch ?

30 Learning Ln.
Brentwood, CA 94513-5214

(925) 626-3330

District: Knightsen Elementary

Racial breakdown:

White:

46.1%

Hispanic:

37.7%

Two or more races:

7.5%

See top rated California elementary schools

Compare Old River Elementary to nearby elementary schools!

At a glance

▼ Ranking trend: Recently slipping — 78th percentile in 2023 → 68th in 2025

Strengths

✓Test scores above the California average (51% vs 41% meeting standards)

✓Above the California median (68th percentile)

Worth a look

!Ranking has slipped from its 78th-percentile peak (2023) to 68th (2025)

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

!Large classes — about 22 students per teacher

Students meeting standards (2024-2025) ?

This school51%

District avg44%

California avg41%

Elementary school

1,899^th of 5,857

California public elementary schools ?

Top 32%▲ up 6 pts since 2019

From top 39% (2019) to top 32% (2025)

See the entire ranking list of California Elementary Schools →

★★★★★

SchoolDigger rating ?

Middle school

655^th of 2,761

California public middle schools ?

Top 24%▲ up 14 pts since 2019

From top 38% (2019) to top 24% (2025)

See the entire ranking list of California Middle Schools →

★★★★★

SchoolDigger rating ?

1^st of 2Elementary Schools in the Knightsen Elementary

519^th of 1,543Knightsen Elementary 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)

Elementary school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	63.6	1899 of 5857	67.6%	★★★☆☆
2024	67.2	1719 of 5869	70.7%	★★★★☆
2023	77.2	1263 of 5859	78.4%	★★★★☆
2022	78.0	1288 of 5883	78.1%	★★★★☆
2019	56.4	2237 of 5789	61.4%	★★★☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	54.0	2244 of 5597	59.9%	★★★☆☆
2024	61.2	1905 of 5612	66.1%	★★★☆☆
2023	78.6	1147 of 5609	79.6%	★★★★☆
2022	79.7	1120 of 5635	80.1%	★★★★☆
2019	56.7	2132 of 5492	61.2%	★★★☆☆
2018	42.7	2907 of 5413	46.3%	★★☆☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	78.1	817 of 5107	84.0%	★★★★☆
2024	73.9	994 of 5107	80.5%	★★★★☆
2023	87.6	449 of 5087	91.2%	★★★★★
2022	90.3	350 of 5084	93.1%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	California percentile	Rating
2024	74.5	1078 of 5517	80.5%	★★★★☆

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	69.1	1561 of 5628	72.3%	★★★★☆
2024	70.0	1502 of 5643	73.4%	★★★★☆
2023	71.1	1454 of 5638	74.2%	★★★★☆
2022	72.3	1422 of 5663	74.9%	★★★★☆
2019	49.9	2459 of 5510	55.4%	★★★☆☆
2018	63.5	1784 of 5431	67.2%	★★★☆☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	39.7	1699 of 2598	34.6%	★★☆☆☆
2024	29.2	1989 of 2651	25.0%	★☆☆☆☆
2023	39.8	1727 of 2661	35.1%	★★☆☆☆
2022	57.6	1234 of 2726	54.7%	★★★☆☆
2019	51.1	1515 of 2834	46.5%	★★☆☆☆
2018	38.4	1862 of 2737	32.0%	★★☆☆☆

Middle school ranking

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	California percentile	Rating
2025	70.9	655 of 2761	76.3%	★★★★☆
2024	85.1	383 of 2783	86.2%	★★★★☆
2023	77.2	543 of 2781	80.5%	★★★★☆
2022	76.5	557 of 2740	79.7%	★★★★☆
2019	55.2	1020 of 2715	62.4%	★★★☆☆

Female

Year	Avg score	Statewide rank	California percentile	Rating
2025	84.1	356 of 2533	85.9%	★★★★☆
2024	86.7	316 of 2551	87.6%	★★★★☆
2023	69.4	633 of 2531	75.0%	★★★★☆
2022	64.2	734 of 2509	70.7%	★★★★☆
2019	52.5	998 of 2380	58.1%	★★★☆☆

Hispanic

Year	Avg score	Statewide rank	California percentile	Rating
2025	79.2	337 of 2395	85.9%	★★★★☆
2024	87.2	185 of 2388	92.3%	★★★★★

Male

Year	Avg score	Statewide rank	California percentile	Rating
2025	63.0	771 of 2534	69.6%	★★★☆☆
2024	80.1	426 of 2552	83.3%	★★★★☆
2023	81.8	398 of 2538	84.3%	★★★★☆
2022	83.0	386 of 2527	84.7%	★★★★☆

White

Year	Avg score	Statewide rank	California percentile	Rating
2025	43.2	855 of 1520	43.8%	★★☆☆☆
2024	63.1	535 of 1537	65.2%	★★★☆☆
2023	75.2	320 of 1543	79.3%	★★★★☆
2022	76.6	302 of 1555	80.6%	★★★★☆

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)

Elementary school

Hispanic (2025)84th percentile+16 vs school

Low Socio Economic Status (2024)80th percentile+10 vs school

Male (2025)72nd percentile+5 vs school

Female (2025)60th percentile-8 vs school

White (2025)35th percentile-33 vs school

Middle school

Female (2025)86th percentile+10 vs school

Hispanic (2025)86th percentile+10 vs school

Male (2025)70th percentile-7 vs school

White (2025)44th percentile-33 vs school

By subject vs California (2024-2025) ?

English Language Arts/Literacy55%+7 vs state

Mathematics51%+14 vs state

Science34%~ state avg

★

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Schools Near Old River 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
Old River Elementary	Public	K-8	30 Learning Ln.	Brentwood	94513	Contra Costa County	Knightsen Elementary	No	(n/a)	No	(n/a)	(925) 626-3330	332	15	22.5	15.4%	153 (46.1%)	10 (3.0%)	125 (37.7%)	16 (4.8%)	0 (0.0%)	3 (0.9%)	25 (7.5%)	63.6	1899^th of 5857 public elementary schools	67.6%		67.2	1719^th of 5869 public elementary schools	70.7%	180	36.7	32.1	34.5	51.9	65.6	43.3	46.9	78.6	50.0	55.4	57.4	59.4	27.6	43.8	67.9	46.4	51.2							$21,678	$20,806	$872
Byron Institute for Independent Study	Public, Virtual	K-8	40 Newbury Ln.	Discovery Bay	94505	Contra Costa County	Byron Union Elementary	No	(n/a)	Yes	(n/a)	(925) 809-7550	26	1	28.2	42.3%	7 (26.9%)	4 (15.4%)	10 (38.5%)	2 (7.7%)	0 (0.0%)	1 (3.8%)	2 (7.7%)								(n/a)		11.8	10.5						17.7	12.9						23.5	22.6							$9,241	$9,224	$17
Timber Point Elementary	Public	K-5	40 Newbury Ln.	Discovery Bay	94505	Contra Costa County	Byron Union Elementary	No	(n/a)	No	(n/a)	(925) 809-7550	362	15	24.6	26.0%	157 (43.4%)	20 (5.5%)	113 (31.2%)	20 (5.5%)	3 (0.8%)	1 (0.3%)	48 (13.3%)	53.2	2406^th of 5857 public elementary schools	58.9%		57.6	2166^th of 5869 public elementary schools	63.1%	240	34.5		34.5	37.7	43.3	50.0				43.9	49.1	43.3	43.1				45.0	68.4	93.0	93.0	96.5	93.0	93.0	$26,063	$25,588	$475
Discovery Bay Elementary	Public	K-5	1700 Willow Lake Rd.	Discovery Bay	94505	Contra Costa County	Byron Union Elementary	No	(n/a)	No	(n/a)	(925) 809-7540	417	19	21.4	41.2%	160 (38.4%)	8 (1.9%)	174 (41.7%)	20 (4.8%)	6 (1.4%)	5 (1.2%)	44 (10.6%)	83.8	975^th of 5857 public elementary schools	83.4%		74.4	1389^th of 5869 public elementary schools	76.3%	414	50.8		50.8	73.7	63.9	67.2				68.6	77.6	52.5	50.8				61.3	86.6	86.6	92.5	88.1	88.1	86.6	$24,193	$23,420	$773
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
Summer Lake Elementary	Public	K-5	4320 East Summer Lake Dr.	Oakley	94561	Contra Costa County	Oakley Union Elementary	No	(n/a)	No	(n/a)	(925) 625-6730	595	25	23.8	43.9%	132 (22.2%)	71 (11.9%)	229 (38.5%)	98 (16.5%)	3 (0.5%)	2 (0.3%)	60 (10.1%)	38.1	3339^th of 5857 public elementary schools	43.0%		42.6	3031^st of 5869 public elementary schools	48.4%	308	26.4		26.4	36.6	48.4	36.8				40.8	35.4	33.0	26.7				31.7							$20,262	$19,426	$836
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
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
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
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

Frequently Asked Questions about Old River Elementary

How many students attend Old River Elementary?

In the 2024-25 school year, 332 students attended Old River Elementary.

What district is Old River Elementary in?

Knightsen Elementary

Is Old River Elementary a good school?

Old River Elementary ranks 1899^th of 5857 California elementary schools. SchoolDigger rates this school 3 stars out of 5.

What is the racial makeup of Old River Elementary?

Students at Old River Elementary are 46% White, 38% Hispanic, 8% Two or more races, 5% Asian, 3% African American.

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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.