Home > California > Los Angeles County

Charter Oak Unified School District

Item: Charter Oak Unified School District
Rating: 7
Author: Public School Review

20240 East Cienega Ave.
Covina, CA 91724-1227

( shown in map)

Top 50%

Tel: (626) 966-8331

www.cousd.net

Top Rankings

Charter Oak Unified School District ranks among the top 20% of public school district in California for:

Overview

This School District

This State (CA)

# Schools

10 Schools

7,671 Schools

# Students

4,296 Students

3,817,030 Students

# Teachers

194 Teachers

173,960 Teachers

Student-Teacher Ratio

22:1

Student By Grade

View Data

Comparison of Students By Grade Trends
Grade	Charter Oak Unified School District	California
Kind	502	262
1	270	187
2	290	196
3	286	204
4	308	205
5	318	210
6	305	210
7	7	152
8	10	154
9	17	22
10	11	18
11	14	18
12	17	21

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

District Rank

Charter Oak Unified School District, which is ranked #607 of all 1,904 school districts in California (based off of combined math and reading proficiency testing data) for the 2022-2023 school year.

The school district's graduation rate of 95% has decreased from 96% over five school years.

This School District

State Average (CA)

#587 out of 1932 school districts
(Top 50%)

View Data

Overall School District Rank Trends
Year	Charter Oak Unified School District
2023	#587
2022	#641
2021	#246
2019	#535
2018	#333
2017	#359
2016	#378
2015	#376
2014	#267
2013	#392
2012	#374

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

38%

34%

View Data

Math Proficiency Trends
Year	Charter Oak Unified School District	California
2023	38%	34%
2022	36%	33%
2021	46%	34%
2019	45%	40%
2018	43%	39%
2017	41%	38%
2016	40%	37%
2015	39%	34%
2014	64%	63%
2013	60%	59%
2012	59%	59%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

49%

47%

View Data

Reading and Language Arts Proficiency Trends
Year	Charter Oak Unified School District	California
2022	49%	47%
2021	57%	49%
2019	55%	51%
2018	43%	50%
2017	50%	48%
2016	49%	48%
2015	44%	44%
2014	62%	58%
2013	60%	57%
2012	64%	58%
2011	60%	56%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

24%

29%

95%

87%

View Data

Graduation Rate Trends
Year	Charter Oak Unified School District	California
2023	95%	87%
2022	97%	87%
2021	94%	84%
2020	96%	85%
2019	94%	84%
2018	96%	84%
2017	93%	83%
2016	94%	83%
2015	96%	89%
2014	95%	88%
2013	94%	87%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

(2022-23)

28.4%

27.7%

View Data

Chronic Absenteeism Rate Trends
Year	Charter Oak Unified School District	California
2023	28.4%	27.7%
2022	28.7%	33%
2021	9.5%	15.4%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Students by Ethnicity:

0.42

0.64

View Data

Comparison of Diversity Score Trends
Year	Charter Oak Unified School District	California
2023	0.45	0.64
2022	0.45	0.63
2021	0.47	0.62
2020	0.49	0.63
2019	0.49	0.63
2018	0.51	0.64
2017	0.51	0.64
2016	0.52	0.64
2015	0.54	0.64
2014	0.55	0.65
2013	0.57	0.65
2012	0.58	0.65
2011	0.59	0.67
2010	0.60	0.67
2009	0.67	0.71
2008	0.61	0.65
2007	0.62	0.67
2006	0.62	0.66
2005	0.62	0.67
2004	0.62	0.67
2003	0.62	0.67
2002	0.63	0.67
2001	0.62	0.67
2000	0.62	0.67
1999	0.61	0.67
1998	0.61	0.67
1997	0.60	0.67
1996	0.59	0.67
1995	0.59	0.67
1994	0.58	0.67
1993	0.56	0.67
1992	0.55	0.67
1991	0.54	0.67

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% American Indian

n/a

View Data

American Indian Student Percentage Comparison Over Years (2001-2020)
Year	Charter Oak Unified School District	California
2020	1%	1%
2019	1%	1%
2014	1%	1%
2013	1%	1%
2012	1%	1%
2011	2%	1%
2007	2%	2%
2006	1%	1%
2003	1%	2%
2002	1%	2%
2001	1%	2%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Charter Oak Unified School District	California
2023	8%	12%
2022	9%	12%
2021	8%	12%
2020	8%	12%
2019	8%	12%
2018	8%	11%
2017	8%	11%
2016	8%	11%
2015	7%	11%
2014	7%	11%
2013	7%	11%
2012	7%	11%
2011	6%	11%
2010	8%	11%
2009	8%	11%
2008	9%	12%
2007	9%	12%
2006	8%	12%
2005	9%	12%
2004	9%	12%
2003	9%	11%
2002	9%	11%
2001	8%	11%
2000	8%	11%
1999	8%	11%
1998	8%	11%
1997	8%	11%
1996	8%	11%
1995	9%	11%
1994	9%	11%
1993	8%	11%
1992	9%	11%
1991	8%	11%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Hispanic

75%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Charter Oak Unified School District	California
2023	73%	55%
2022	72%	56%
2021	71%	56%
2020	70%	55%
2019	70%	55%
2018	67%	54%
2017	67%	54%
2016	65%	54%
2015	64%	54%
2014	62%	53%
2013	61%	53%
2012	59%	52%
2011	58%	51%
2010	57%	50%
2009	45%	49%
2008	48%	50%
2007	47%	49%
2006	49%	48%
2005	48%	47%
2004	46%	46%
2003	44%	45%
2002	42%	44%
2001	41%	43%
2000	39%	42%
1999	38%	41%
1998	37%	40%
1997	34%	40%
1996	34%	39%
1995	32%	38%
1994	30%	37%
1993	28%	36%
1992	26%	35%
1991	24%	34%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Black

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Charter Oak Unified School District	California
2023	3%	5%
2022	3%	5%
2021	3%	5%
2020	3%	5%
2019	3%	5%
2018	3%	6%
2017	3%	6%
2016	3%	6%
2015	3%	6%
2014	3%	6%
2013	3%	6%
2012	3%	6%
2011	3%	7%
2010	3%	7%
2009	4%	7%
2008	4%	8%
2007	5%	8%
2006	5%	8%
2005	5%	8%
2004	5%	8%
2003	4%	8%
2002	5%	8%
2001	5%	8%
2000	5%	9%
1999	5%	9%
1998	5%	9%
1997	5%	9%
1996	5%	9%
1995	4%	9%
1994	4%	9%
1993	4%	9%
1992	4%	9%
1991	4%	9%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% White

12%

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Charter Oak Unified School District	California
2023	13%	21%
2022	13%	21%
2021	15%	22%
2020	16%	23%
2019	16%	23%
2018	20%	24%
2017	20%	24%
2016	22%	24%
2015	23%	24%
2014	24%	25%
2013	25%	25%
2012	26%	26%
2011	27%	27%
2010	28%	27%
2009	34%	28%
2008	39%	29%
2007	37%	29%
2006	37%	31%
2005	38%	31%
2004	40%	32%
2003	42%	34%
2002	43%	35%
2001	45%	36%
2000	48%	37%
1999	49%	38%
1998	50%	39%
1997	53%	39%
1996	53%	40%
1995	55%	41%
1994	57%	42%
1993	60%	43%
1992	61%	44%
1991	63%	45%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

% Hawaiian

n/a

% Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2009-2023)
Year	Charter Oak Unified School District	California
2023	3%	6%
2022	3%	5%
2021	2%	5%
2020	2%	4%
2019	2%	4%
2018	2%	4%
2017	2%	4%
2016	2%	4%
2015	3%	3%
2014	3%	3%
2013	3%	3%
2012	4%	3%
2011	4%	2%
2010	4%	3%
2009	9%	3%

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

All Ethnic Groups

District Revenue and Spending

The revenue/student of $16,309 in this school district is less than the state median of $20,100. The school district revenue/student has grown by 10% over four school years.

The school district's spending/student of $15,658 is less than the state median of $18,512. The school district spending/student has stayed relatively flat over four school years.

This School District

This State (CA)

Total Revenue

$70 MM

$116,387 MM

View Data

Total Revenues Trends
Year	Charter Oak Unified School District	California
2023	$70 MM	$8 MM
2022	$67 MM	$7 MM
2021	$70 MM	$8 MM
2020	$67 MM	$7 MM
2019	$70 MM	$7 MM
2018	$65 MM	$29 MM
2017	$65 MM	$26 MM
2016	$80 MM	$24 MM
2015	$53 MM	$17 MM
2014	$57 MM	$21 MM
2012	$54 MM	$19 MM
2011	$59 MM	$19 MM
2010	$53 MM	$17 MM
2009	$67 MM	$19 MM
2008	$70 MM	$19 MM
2007	$63 MM	$19 MM
2006	$73 MM	$17 MM
2005	$56 MM	$16 MM
2004	$51 MM	$16 MM
2003	$51 MM	$16 MM
2002	$52 MM	$15 MM
2001	$50 MM	$15 MM
2000	$45 MM	$13 MM
1999	$42 MM	$12 MM
1998	$40 MM	$11 MM
1997	$39 MM	$10 MM
1996	$33 MM	$9 MM
1995	$30 MM	$8 MM

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Spending

$67 MM

$107,188 MM

View Data

Total Expenditure Trends
Year	Charter Oak Unified School District	California
2023	$67 MM	$7 MM
2022	$74 MM	$7 MM
2021	$67 MM	$7 MM
2020	$74 MM	$7 MM
2019	$83 MM	$7 MM
2018	$66 MM	$29 MM
2017	$64 MM	$24 MM
2016	$64 MM	$23 MM
2015	$57 MM	$18 MM
2014	$63 MM	$21 MM
2012	$54 MM	$19 MM
2011	$55 MM	$19 MM
2010	$57 MM	$18 MM
2009	$65 MM	$18 MM
2008	$75 MM	$19 MM
2007	$76 MM	$18 MM
2006	$64 MM	$17 MM
2005	$59 MM	$16 MM
2004	$57 MM	$17 MM
2003	$53 MM	$15 MM
2002	$50 MM	$16 MM
2001	$45 MM	$14 MM
2000	$42 MM	$13 MM
1999	$39 MM	$11 MM
1998	$39 MM	$11 MM
1997	$38 MM	$10 MM
1996	$36 MM	$8 MM
1995	$31 MM	$8 MM

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Revenue / Student

$16,309

$20,100

View Data

Average Revenue Per Student Trends
Year	Charter Oak Unified School District	California
2023	$16,401	$15,607
2022	$14,820	$14,213
2021	$16,332	$15,669
2020	$14,820	$14,213
2019	$15,261	$14,063
2018	$13,709	$16,033
2017	$13,342	$16,692
2016	$16,130	$15,604
2015	$10,310	$10,238
2014	$10,781	$11,786
2012	$9,444	$11,929
2011	$9,887	$11,681
2010	$8,643	$10,238
2009	$10,552	$11,099
2008	$10,842	$11,762
2007	$9,489	$11,879
2006	$10,666	$10,859
2005	$7,763	$10,445
2004	$7,133	$10,566
2003	$7,235	$10,456
2002	$7,489	$9,803
2001	$7,316	$10,568
2000	$6,571	$8,943
1999	$6,208	$8,203
1998	$6,046	$7,395
1997	$6,101	$6,922
1995	$4,922	$5,953
1992	$5,114	$5,430

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Spending / Student

$15,658

$18,512

View Data

Average Expenditure Per Student Trends
Year	Charter Oak Unified School District	California
2023	$15,746	$13,914
2022	$16,425	$13,602
2021	$15,680	$13,970
2020	$16,425	$13,602
2019	$18,156	$13,522
2018	$14,002	$16,124
2017	$13,101	$15,588
2016	$12,933	$14,779
2015	$11,094	$10,739
2014	$11,800	$11,804
2012	$9,365	$12,155
2011	$9,095	$11,509
2010	$9,301	$10,739
2009	$10,294	$10,975
2008	$11,520	$11,678
2007	$11,420	$11,317
2006	$9,405	$10,926
2005	$8,201	$10,789
2004	$8,031	$11,073
2003	$7,512	$10,210
2002	$7,155	$10,600
2001	$6,581	$10,007
2000	$6,177	$9,131
1999	$5,815	$7,911
1998	$5,976	$7,592
1997	$5,968	$6,759
1995	$5,017	$6,033
1992	$4,687	$5,588

Download Table: Download as CSV | Download as XML | Download as JSON

Download Full School District Data: Full School Distirct Dataset XML | Full School Distirct Dataset JSON

Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

Best Charter Oak Unified School District Public Elementary Schools (2026)

School
(Math and Reading Proficiency)

Location

Quick Facts

Rank: #11.

Washington Elementary School

(Math: 50-54% | Reading: 65-69%)
:

Top 20%

Add to Compare

325 West Gladstone
Glendora, CA 91740
(626) 914-2704

Gr: K-6 | 421 students Student-teacher ratio: 23:1 Minority enrollment: 84%

Rank: #22.

Willow Elementary School

(Math: 45-49% | Reading: 55-59%)
:

Top 30%

Add to Compare

1427 South Willow
Glendora, CA 91740
(626) 914-5839

Gr: K-6 | 388 students Student-teacher ratio: 23:1 Minority enrollment: 84%

Rank: #33.

Cedargrove Elementary School

(Math: 35% | Reading: 47%)
:

Top 50%

Add to Compare

1209 North Glendora Ave.
Covina, CA 91724
(626) 966-8675

Gr: K-6 | 569 students Student-teacher ratio: 25:1 Minority enrollment: 91%

Rank: #44.

Badillo Elementary School

(Math: 36% | Reading: 39%)
:

Top 50%

Add to Compare

1771 East Old Badillo Ave.
Covina, CA 91724
(626) 966-1753

Gr: K-6 | 442 students Student-teacher ratio: 22:1 Minority enrollment: 94%

Rank: #55.

Glen Oak Elementary School

(Math: 30% | Reading: 35-39%)
:

Bottom 50%

Add to Compare

1000 North Sunflower Ave.
Covina, CA 91724
(626) 331-5341

Gr: K-6 | 428 students Student-teacher ratio: 21:1 Minority enrollment: 87%

Rank: #66.

Oak Knoll Alternative

Alternative School

(Math: 10-14% | Reading: 45-49%)
:

Bottom 50%

Add to Compare

1505 South Sunflower Ave.
Glendora, CA 91740
(626) 852-7972

Gr: K-12 | 107 students Student-teacher ratio: 36:1 Minority enrollment: 86%

Recent Articles

July 29, 2026

The School Choice Comparison Worksheet: 15 Factors Beyond Test Scores

Compare public schools with confidence using this 15-factor worksheet that looks beyond test scores to school culture, programs, safety, and student support.

July 29, 2026

Boundary Changes and Rezoning: How to Protect Your Child's School Plan

Learn why school boundary changes happen, how rezoning affects families, and the practical steps parents can take to protect their child's educational plan.

July 29, 2026

Teacher Turnover: How to Read the Warning Signs

Learn how to identify warning signs of teacher turnover, what causes frequent staff changes, and how parents can evaluate school stability.

Quick Facts (2026)

District size: 10 schools
Grades: K-12
Enrollment: 4,296 students
Student-Teacher Ratio: 22:1
Minority Enrollment: 88%
: 95% (Top 5% in CA)
: Top 50%
: 38% (Top 30%)
: 49% (Top 50%)
: 24% (Btm 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education