Ellerhorst Elementary School (Ranked Top 50% for 2026)

3501 Pinole Valley Rd.
Pinole, CA 94564

( shown in map)

Top 50%

Tel: (510) 231-1426

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Ellerhorst Elementary School Photo #1 - Arbor Day Celebration!

Ellerhorst Elementary School Photo #2 - Building Boats as part of our Engineering Curriculum

Ellerhorst Elementary School Photo #3 - Our famous talent show!

Ellerhorst Elementary School Photo #4 - Our kinder classroom ready for students!

Ellerhorst Elementary School Photo #5 - Celebrating our 6th graders at their promotion ceremony.

Ellerhorst Elementary School Photo #6 - Classroom getting cleaned, and getting ready for students.

Serving 327 students in grades Prekindergarten-6, Ellerhorst Elementary School ranks in the top 50% of all schools in California for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).

The percentage of students achieving is 35-39% (which is higher than the California state average of 34%). The percentage of students achieving is 35-39% (which is lower than the California state average of 47%).

The student-teacher ratio of 20:1 is lower than the California state level of 21:1.

Minority enrollment is 79% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).

Quick Facts (2026)

Grades: Prekindergarten-6
Enrollment: 327 students
Student-Teacher Ratio: 20:1
Minority Enrollment: 79%
: Top 50% in CA
: 35-39% (Top 50%)
: 35-39% (Btm 50%)
: 20-29% (Top 50%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

Top Rankings

Ellerhorst Elementary School ranks among the top 20% of public schools in California for:

School Overview

Ellerhorst Elementary School's student population of 327 students has declined by 12% over five school years.

The teacher population of 16 teachers has declined by 5% over five school years.

Grades Offered

Grades Prekindergarten-6

View Data

Distribution of Students By Grade Trends
Grade	Ellerhorst Elementary School
Pre-K	20
Kind	40
1	43
2	44
3	47
4	45
5	44
6	44

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Total Students

327 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Ellerhorst Elementary School
2023	312
2022	334
2021	375
2020	359
2019	359
2018	366
2017	366
2016	357
2015	379
2014	415
2013	420
2012	421
2011	463
2010	435
2009	441
2008	393
2007	446
2006	455
2005	435
2004	455
2003	462
2002	450
2001	462
2000	456
1999	488
1998	486
1997	456
1996	439
1995	459
1994	458
1993	425
1992	447
1991	446
1990	439
1989	414
1988	440
1987	425

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Gender %

Total Classroom Teachers

16 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	Ellerhorst Elementary School
2023	17
2022	17
2021	17
2020	16
2019	16
2018	15
2017	15
2016	16
2015	17
2014	17
2013	16
2012	19
2010	21
2009	22
2008	23
2007	23
2006	24
2005	24
2004	25
2003	23
2002	22
2001	24
2000	23
1999	23
1998	22
1997	19
1996	17
1995	17
1994	18
1993	15
1992	20
1991	20
1990	19

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School Calendar

Last Day of School

Wed. Jun 10, 2026

School Rankings

Ellerhorst Elementary School ranks within the top 50% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).

The of Ellerhorst Elementary School is 0.72, which is more than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.

This School

State Level (CA)

#4369 out of 9523 schools
(Top 50%)

View Data

Overall School Rank Trends Over Years (2010-2023)
Year	Ellerhorst Elementary School
2023	#4369
2022	#5091
2019	#6198
2018	#5076
2017	#6342
2016	#4103
2015	#3786
2013	#4453
2012	#4340
2011	#3796
2010	#3328

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35-39%

34%

View Data

Math Proficiency Comparison Over Years (2010-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	37%	34%	23%
2022	27%	33%	21%
2019	29%	40%	24%
2018	32%	39%	23%
2017	24%	38%	25%
2016	40%	37%	24%
2015	36%	34%	23%
2013	54%	59%	45%
2012	56%	59%	44%
2011	61%	58%	44%
2010	63%	56%	41%

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35-39%

47%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2022	37%	47%	32%
2019	39%	51%	35%
2018	44%	50%	23%
2017	36%	48%	35%
2016	45%	48%	34%
2015	40%	44%	33%
2013	57%	57%	43%
2012	60%	58%	45%
2011	57%	56%	43%
2010	56%	54%	41%

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20-29%

29%

Student-Teacher Ratio

20:1

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	18:1	22:1	21:1
2022	20:1	21:1	21:1
2021	22:1	22:1	23:1
2020	22:1	23:1	24:1
2019	22:1	23:1	24:1
2018	24:1	23:1	23:1
2017	24:1	23:1	23:1
2016	22:1	24:1	23:1
2015	22:1	24:1	23:1
2014	25:1	24:1	24:1
2013	26:1	24:1	24:1
2012	22:1	23:1	22:1
2010	21:1	21:1	21:1
2009	20:1	20:1	20:1
2008	17:1	18:1	17:1
2007	19:1	21:1	21:1
2006	19:1	20:1	21:1
2005	18:1	21:1	21:1
2004	18:1	21:1	21:1
2003	20:1	20:1	20:1
2002	20:1	20:1	21:1
2001	19:1	20:1	20:1
2000	20:1	21:1	21:1
1999	21:1	21:1	21:1
1998	22:1	21:1	21:1
1997	24:1	23:1	24:1
1996	26:1	25:1	25:1
1995	27:1	25:1	25:1
1994	26:1	25:1	25:1
1993	28:1	25:1	26:1
1992	22:1	24:1	22:1
1991	22:1	24:1	22:1
1990	23:1	24:1	22:1

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American Indian

n/a

View Data

American Indian Student Percentage Comparison Over Years (2006-2020)
Year	Ellerhorst Elementary School	California
2020	1%	1%
2019	1%	1%
2014	1%	1%
2013	1%	1%
2012	1%	1%
2011	1%	1%
2010	1%	1%
2009	2%	1%
2008	1%	1%
2007	3%	2%
2006	3%	1%

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Asian

15%

12%

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	15%	12%	16%
2022	11%	12%	17%
2021	10%	12%	16%
2020	10%	12%	16%
2019	10%	12%	16%
2018	10%	11%	16%
2017	10%	11%	16%
2016	14%	11%	16%
2015	16%	11%	17%
2014	15%	11%	16%
2013	14%	11%	16%
2012	13%	11%	17%
2011	10%	11%	13%
2010	13%	11%	16%
2009	12%	11%	15%
2008	15%	12%	18%
2007	16%	12%	18%
2006	15%	12%	19%
2005	17%	12%	18%
2004	17%	12%	18%
2003	17%	11%	19%
2002	14%	11%	18%
2001	17%	11%	18%
2000	15%	11%	19%
1999	16%	11%	20%
1998	16%	11%	19%
1997	14%	11%	19%
1996	14%	11%	19%
1995	14%	11%	19%
1994	16%	11%	20%
1993	15%	11%	19%
1992	15%	11%	19%
1991	11%	11%	18%

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Hispanic

43%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	44%	55%	54%
2022	46%	56%	53%
2021	45%	56%	53%
2020	42%	55%	52%
2019	42%	55%	52%
2018	42%	54%	55%
2017	42%	54%	55%
2016	38%	54%	54%
2015	33%	54%	52%
2014	33%	53%	53%
2013	33%	53%	51%
2012	33%	52%	50%
2011	29%	51%	48%
2010	30%	50%	48%
2009	26%	49%	46%
2008	30%	50%	47%
2007	27%	49%	45%
2006	26%	48%	42%
2005	26%	47%	42%
2004	26%	46%	39%
2003	24%	45%	37%
2002	23%	44%	35%
2001	19%	43%	33%
2000	20%	42%	30%
1999	17%	41%	27%
1998	16%	40%	26%
1997	16%	40%	24%
1996	14%	39%	22%
1995	12%	38%	21%
1994	10%	37%	20%
1993	9%	36%	19%
1992	9%	35%	17%
1991	10%	34%	16%

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Black

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	7%	5%	13%
2022	7%	5%	14%
2021	9%	5%	14%
2020	10%	5%	16%
2019	10%	5%	16%
2018	13%	6%	17%
2017	13%	6%	17%
2016	12%	6%	18%
2015	12%	6%	19%
2014	11%	6%	19%
2013	9%	6%	20%
2012	13%	6%	20%
2011	12%	7%	15%
2010	13%	7%	23%
2009	12%	7%	23%
2008	12%	8%	24%
2007	14%	8%	25%
2006	11%	8%	27%
2005	11%	8%	27%
2004	10%	8%	29%
2003	11%	8%	29%
2002	11%	8%	31%
2001	12%	8%	32%
2000	13%	9%	33%
1999	14%	9%	34%
1998	14%	9%	35%
1997	12%	9%	35%
1996	8%	9%	35%
1995	9%	9%	35%
1994	9%	9%	35%
1993	9%	9%	35%
1992	7%	9%	35%
1991	7%	9%	35%

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White

21%

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	23%	21%	11%
2022	23%	21%	11%
2021	25%	22%	11%
2020	28%	23%	11%
2019	28%	23%	11%
2018	31%	24%	10%
2017	31%	24%	10%
2016	32%	24%	10%
2015	36%	24%	10%
2014	38%	25%	11%
2013	41%	25%	11%
2012	39%	26%	11%
2011	35%	27%	9%
2010	42%	27%	12%
2009	37%	28%	11%
2008	42%	29%	11%
2007	40%	29%	12%
2006	45%	31%	12%
2005	46%	31%	13%
2004	47%	32%	14%
2003	48%	34%	15%
2002	52%	35%	16%
2001	52%	36%	17%
2000	52%	37%	18%
1999	53%	38%	19%
1998	54%	39%	20%
1997	58%	39%	22%
1996	64%	40%	24%
1995	64%	41%	25%
1994	65%	42%	25%
1993	67%	43%	27%
1992	68%	44%	29%
1991	72%	45%	30%

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Hawaiian

n/a

View Data

Native Hawaiian or Pacific Islander Student Percentage Comparison Over Years (2010-2014)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2014	1%	1%	1%
2012	1%	1%	1%
2011	1%	1%
2010	1%	1%	1%

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Two or more races

12%

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	11%	6%	5%
2022	13%	5%	5%
2021	10%	5%	5%
2020	9%	4%	4%
2019	9%	4%	4%
2018	4%	4%	2%
2017	4%	4%	2%
2016	4%	4%	2%
2015	3%	3%	2%
2014	1%	3%
2013	1%	3%	1%

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All Ethnic Groups

0.72

0.63

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	0.72	0.64	0.66
2022	0.71	0.63	0.66
2021	0.71	0.62	0.67
2020	0.72	0.63	0.67
2019	0.72	0.63	0.67
2018	0.71	0.64	0.64
2017	0.71	0.64	0.64
2016	0.72	0.64	0.65
2015	0.73	0.64	0.65
2014	0.72	0.65	0.66
2013	0.70	0.65	0.67
2012	0.71	0.65	0.67
2011	0.76	0.67	0.71
2010	0.71	0.67	0.68
2009	0.76	0.71	0.71
2008	0.70	0.65	0.68
2007	0.75	0.67	0.69
2006	0.72	0.66	0.72
2005	0.71	0.67	0.71
2004	0.70	0.67	0.72
2003	0.70	0.67	0.73
2002	0.67	0.67	0.73
2001	0.66	0.67	0.74
2000	0.66	0.67	0.74
1999	0.65	0.67	0.74
1998	0.65	0.67	0.74
1997	0.61	0.67	0.74
1996	0.55	0.67	0.74
1995	0.55	0.67	0.74
1994	0.54	0.67	0.74
1993	0.52	0.67	0.74
1992	0.50	0.67	0.74
1991	0.46	0.67	0.73

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Eligible for

29%

51%

View Data

Free Lunch Eligibility Comparison Over Years (1992-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	29%	51%	48%
2022	26%	51%	43%
2021	36%	53%	57%
2020	37%	52%	59%
2019	37%	52%	59%
2018	33%	49%	59%
2017	33%	49%	59%
2016	32%	50%	60%
2015	30%	50%	59%
2014	28%	49%	59%
2013	29%	48%	62%
2011	30%	46%	57%
2010	24%	46%	51%
2009	24%	43%	49%
2008	21%	41%	49%
2007	17%	40%	45%
2006	17%	40%	44%
2005	14%	40%	43%
2004	14%	40%	39%
2003	10%	39%	37%
2002	12%	39%	41%
2001	11%	39%	40%
2000	12%	40%	42%
1999	15%	40%	44%
1998	25%	47%	52%
1997	25%	47%	51%
1996	19%	46%	51%
1995	18%	45%	49%
1994	17%	43%	47%
1993	17%	41%	42%
1992	13%	38%	36%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2002-2023)
Year	Ellerhorst Elementary School	California	West Contra Costa Unified School District
2023	7%	8%	6%
2022	1%	7%	4%
2021	8%	6%	9%
2020	6%	7%	10%
2019	6%	7%	10%
2018	8%	9%	10%
2017	8%	9%	10%
2016	5%	9%	10%
2015	8%	9%	10%
2014	12%	9%	12%
2013	11%	7%	8%
2011	5%	8%	10%
2010	12%	9%	15%
2009	8%	10%	15%
2008	13%	10%	16%
2007	9%	10%	15%
2006	8%	9%	15%
2005	8%	9%	14%
2004	6%	9%	13%
2003	5%	9%	11%
2002	6%	8%	13%

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School Statewide Testing

School District Name

West Contra Costa Unified School District

Source: National Center for Education Statistics (NCES), CA Dept. of Education

School Notes

School Mascot: Rattler

Profile last updated: 09/02/2025

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Frequently Asked Questions

What is Ellerhorst Elementary School's ranking?

Ellerhorst Elementary School is ranked #4369 out of 9,523 schools, which ranks it among the top 50% of public schools in California.

What percent of students have achieved state testing proficiency in math and reading?

35-39% of students have achieved math proficiency (compared to the 34% CA state average), while 35-39% of students have achieved reading proficiency (compared to the 47% CA state average).

How many students attend Ellerhorst Elementary School?

327 students attend Ellerhorst Elementary School.

What is the racial composition of the student body?

43% of Ellerhorst Elementary School students are Hispanic, 21% of students are White, 15% of students are Asian, 12% of students are Two or more races, and 9% of students are Black.

What is the student-teacher ratio of Ellerhorst Elementary School?

Ellerhorst Elementary School has a student ration of 20:1, which is lower than the California state average of 21:1.

What grades does Ellerhorst Elementary School offer ?

Ellerhorst Elementary School offers enrollment in grades Prekindergarten-6

What school district is Ellerhorst Elementary School part of?

Ellerhorst Elementary School is part of West Contra Costa Unified School District.

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