Cosumnes River Elementary School (Ranked Top 20% for 2026)

13580 Jackson Rd.
Sloughhouse, CA 95683

( shown in map)

Top 20%

Serving 337 students in grades Kindergarten-6, Cosumnes River Elementary School ranks in the top 20% of all schools in California for overall test scores (math proficiency is top 10%, and reading proficiency is top 10%).

The percentage of students achieving is 65-69% (which is higher than the California state average of 34%). The percentage of students achieving is 67% (which is higher than the California state average of 47%).

The student-teacher ratio of 24:1 is higher than the California state level of 21:1.

Minority enrollment is 40% of the student body (majority Hispanic), which is lower than the California state average of 80% (majority Hispanic).

Quick Facts (2026)

Grades: Kindergarten-6
Enrollment: 337 students
Student-Teacher Ratio: 24:1
Minority Enrollment: 40%
: Top 20% in CA
: 65-69% (Top 10%)
: 67% (Top 20%)
: 50-59% (Top 20%)
Source: National Center for Education Statistics (NCES), CA Dept. of Education

<�鶹��ý class="so-dt-title" id="top-rankings">Top Rankings

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

Category

Attribute

Overall Rank

Highest overall rank (Top 20%)

Math Proficiency

Highest math proficiency (Top 10%)

Reading/Language Arts Proficiency

Highest reading/language arts proficiency (Top 20%)

Science Proficiency

Highest science proficiency (Top 20%)

<�鶹��ý class='so-dt-title' id="overview">School Overview

Cosumnes River Elementary School's student population of 337 students has stayed relatively flat over five school years.

The teacher population of 14 teachers has stayed relatively flat over five school years.

Awards

Blue Ribbon School - Selected in 2007

Grades Offered

Grades Kindergarten-6

View Data

Distribution of Students By Grade Trends
Grade	Cosumnes River Elementary School
Kind	63
1	51
2	35
3	50
4	40
5	50
6	48

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Total Students

337 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Cosumnes River Elementary School
2023	361
2022	335
2021	339
2020	413
2019	413
2018	507
2017	507
2016	475
2015	511
2014	506
2013	505
2012	511
2011	522
2010	506
2009	502
2008	451
2007	510
2006	511
2005	471
2004	448
2003	419
2002	402
2001	368
2000	319
1999	320
1998	280
1997	252
1996	273
1995	261
1994	242
1993	233
1992	220
1991	208
1990	194
1989	207
1988	200
1987	200

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Gender %

Total Classroom Teachers

14 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	Cosumnes River Elementary School
2023	15
2022	15
2021	14
2020	16
2019	16
2018	22
2017	22
2016	21
2015	22
2014	23
2013	20
2012	20
2010	25
2009	26
2008	28
2007	26
2006	24
2005	23
2004	23
2003	21
2002	20
2001	16
2000	15
1999	15
1998	14
1997	10
1996	10
1995	10
1994	9
1993	10
1992	8
1991	8
1990	8

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School Calendar

School Motto

It’s a Great Day to be a Roadrunner!

<�鶹��ý class='so-dt-title' id="school-rankings">School Rankings

Cosumnes River Elementary School ranks within the top 20% of all 9,523 schools in California (based off of combined math and reading proficiency testing data).

The of Cosumnes River Elementary School is 0.58, which is less 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)

#1086 out of 9523 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2011-2023)
Year	Cosumnes River Elementary School
2023	#1086
2022	#1174
2021	#443
2019	#900
2018	#972
2017	#1206
2016	#1196
2015	#1167
2013	#753
2012	#570
2011	#709

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65-69%

34%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	67%	34%	40%
2022	63%	33%	40%
2021	52%	34%	40%
2019	68%	40%	45%
2018	66%	39%	44%
2017	66%	38%	44%
2016	62%	37%	42%
2015	58%	34%	41%
2013	85%	59%	60%
2012	86%	59%	61%
2011	86%	58%	61%

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67%

47%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2010-2022)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2022	67%	47%	52%
2021	67%	49%	51%
2019	76%	51%	56%
2018	74%	50%	44%
2017	67%	48%	54%
2016	69%	48%	52%
2015	66%	44%	50%
2013	79%	57%	59%
2012	84%	58%	61%
2011	79%	56%	60%
2010	80%	54%	58%

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50-59%

29%

Student-Teacher Ratio

24:1

21:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	24:1	22:1	23:1
2022	22:1	21:1	22:1
2021	24:1	22:1	23:1
2020	26:1	23:1	23:1
2019	26:1	23:1	23:1
2018	23:1	23:1	23:1
2017	23:1	23:1	23:1
2016	23:1	24:1	21:1
2015	23:1	24:1	21:1
2014	22:1	24:1	21:1
2013	25:1	24:1	24:1
2012	26:1	23:1	24:1
2010	20:1	21:1	21:1
2009	19:1	20:1	21:1
2008	16:1	18:1	17:1
2007	20:1	21:1	21:1
2006	21:1	20:1	22:1
2005	20:1	21:1	22:1
2004	19:1	21:1	21:1
2003	20:1	20:1	21:1
2002	20:1	20:1	21:1
2001	23:1	20:1	21:1
2000	21:1	21:1	22:1
1999	21:1	21:1	22:1
1998	20:1	21:1	22:1
1997	25:1	23:1	24:1
1996	27:1	25:1	24:1
1995	27:1	25:1	25:1
1994	27:1	25:1	25:1
1993	25:1	25:1	24:1
1992	27:1	24:1	26:1
1991	26:1	24:1	25:1
1990	24:1	24:1	25:1

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American Indian

n/a

View Data

American Indian Student Percentage Comparison Over Years (1990-2014)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2014	1%	1%	1%
2013	1%	1%	1%
2012	1%	1%	1%
2011	1%	1%	1%
2004	1%	2%	1%
2003	1%	2%	2%
2001	2%	2%	3%
2000	2%	1%	2%
1999	2%	1%	2%
1998	1%	1%	2%
1997	1%	1%	1%
1996	1%	1%	1%
1995	2%	1%	1%
1994	2%	1%	1%
1993	1%	1%	1%
1991	1%	1%	1%
1990	2%	1%	2%

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Asian

12%

View Data

Asian Student Percentage Comparison Over Years (1993-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	4%	12%	35%
2022	4%	12%	34%
2021	4%	12%	33%
2020	4%	12%	31%
2019	4%	12%	31%
2018	6%	11%	30%
2017	6%	11%	30%
2016	5%	11%	29%
2015	6%	11%	29%
2014	5%	11%	27%
2013	4%	11%	27%
2012	3%	11%	27%
2011	3%	11%	25%
2010	3%	11%	26%
2009	4%	11%	26%
2008	4%	12%	29%
2007	6%	12%	28%
2006	5%	12%	28%
2005	4%	12%	27%
2004	4%	12%	26%
2003	4%	11%	25%
2002	4%	11%	25%
2001	5%	11%	23%
2000	4%	11%	23%
1999	4%	11%	22%
1998	5%	11%	22%
1997	5%	11%	22%
1996	4%	11%	21%
1995	4%	11%	21%
1994	4%	11%	20%
1993	3%	11%	19%

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Hispanic

23%

56%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	23%	55%	28%
2022	21%	56%	28%
2021	22%	56%	28%
2020	18%	55%	27%
2019	18%	55%	27%
2018	18%	54%	27%
2017	18%	54%	27%
2016	18%	54%	27%
2015	18%	54%	27%
2014	16%	53%	26%
2013	19%	53%	26%
2012	18%	52%	26%
2011	18%	51%	26%
2010	18%	50%	25%
2009	12%	49%	20%
2008	15%	50%	23%
2007	14%	49%	22%
2006	13%	48%	21%
2005	13%	47%	20%
2004	11%	46%	20%
2003	11%	45%	19%
2002	11%	44%	18%
2001	11%	43%	17%
2000	12%	42%	17%
1999	14%	41%	17%
1998	13%	40%	16%
1997	15%	40%	16%
1996	18%	39%	15%
1995	15%	38%	14%
1994	16%	37%	14%
1993	16%	36%	14%
1992	13%	35%	13%
1991	11%	34%	13%

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Black

View Data

Black Student Percentage Comparison Over Years (1988-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	3%	5%	10%
2022	3%	5%	11%
2021	3%	5%	11%
2020	4%	5%	12%
2019	4%	5%	12%
2018	3%	6%	13%
2017	3%	6%	13%
2016	2%	6%	13%
2015	2%	6%	14%
2014	2%	6%	15%
2013	1%	6%	15%
2012	2%	6%	16%
2011	2%	7%	16%
2010	2%	7%	17%
2009	2%	7%	17%
2008	2%	8%	20%
2007	3%	8%	20%
2006	2%	8%	20%
2005	3%	8%	19%
2004	2%	8%	19%
2003	8%	8%	19%
2002	3%	8%	19%
2001	2%	8%	19%
2000	1%	9%	20%
1999	1%	9%	19%
1998	1%	9%	19%
1997	1%	9%	19%
1996	1%	9%	19%
1993	1%	9%	16%
1990	1%	9%	14%
1988	2%	9%	12%

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White

60%

20%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	60%	21%	16%
2022	59%	21%	17%
2021	57%	22%	17%
2020	64%	23%	19%
2019	64%	23%	19%
2018	64%	24%	21%
2017	64%	24%	21%
2016	66%	24%	22%
2015	65%	24%	22%
2014	69%	25%	23%
2013	70%	25%	23%
2012	71%	26%	24%
2011	70%	27%	25%
2010	73%	27%	25%
2009	68%	28%	25%
2008	79%	29%	27%
2007	77%	29%	28%
2006	80%	31%	30%
2005	80%	31%	32%
2004	82%	32%	34%
2003	76%	34%	35%
2002	82%	35%	36%
2001	80%	36%	38%
2000	81%	37%	38%
1999	79%	38%	40%
1998	80%	39%	41%
1997	78%	39%	42%
1996	76%	40%	44%
1995	79%	41%	46%
1994	78%	42%	48%
1993	79%	43%	50%
1992	84%	44%	53%
1991	84%	45%	55%

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Hawaiian

n/a

Two or more races

11%

View Data

Two or More Races Student Percentage Comparison Over Years (2009-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	10%	6%	9%
2022	13%	5%	8%
2021	13%	5%	9%
2020	10%	4%	9%
2019	10%	4%	9%
2018	9%	4%	8%
2017	9%	4%	8%
2016	9%	4%	8%
2015	9%	3%	7%
2014	7%	3%	6%
2013	5%	3%	6%
2012	5%	3%	5%
2011	6%	2%	5%
2010	4%	3%	5%
2009	14%	3%	10%

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All Ethnic Groups

0.58

0.63

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	0.58	0.64	0.77
2022	0.59	0.63	0.77
2021	0.61	0.62	0.77
2020	0.55	0.63	0.78
2019	0.55	0.63	0.78
2018	0.55	0.64	0.78
2017	0.55	0.64	0.78
2016	0.53	0.64	0.78
2015	0.54	0.64	0.78
2014	0.50	0.65	0.79
2013	0.47	0.65	0.79
2012	0.46	0.65	0.79
2011	0.48	0.67	0.79
2010	0.44	0.67	0.79
2009	0.51	0.71	0.80
2008	0.35	0.65	0.75
2007	0.41	0.67	0.74
2006	0.35	0.66	0.76
2005	0.34	0.67	0.75
2004	0.32	0.67	0.75
2003	0.41	0.67	0.75
2002	0.32	0.67	0.74
2001	0.34	0.67	0.74
2000	0.32	0.67	0.73
1999	0.36	0.67	0.73
1998	0.34	0.67	0.73
1997	0.37	0.67	0.72
1996	0.39	0.67	0.71
1995	0.36	0.67	0.70
1994	0.37	0.67	0.69
1993	0.35	0.67	0.68
1992	0.28	0.67	0.66
1991	0.28	0.67	0.64

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Eligible for

12%

54%

View Data

Free Lunch Eligibility Comparison Over Years (1992-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	13%	51%	38%
2022	12%	51%	40%
2021	16%	53%	42%
2020	14%	52%	44%
2019	14%	52%	44%
2018	10%	49%	40%
2017	10%	49%	40%
2016	11%	50%	42%
2015	10%	50%	42%
2014	9%	49%	38%
2013	9%	48%	45%
2011	11%	46%	39%
2010	10%	46%	38%
2009	9%	43%	35%
2008	9%	41%	37%
2007	10%	40%	32%
2006	7%	40%	29%
2005	6%	40%	27%
2004	5%	40%	28%
2003	8%	39%	29%
2002	8%	39%	28%
2001	9%	39%	29%
2000	11%	40%	31%
1999	8%	40%	33%
1998	19%	47%	41%
1997	17%	47%	39%
1996	18%	46%	36%
1995	21%	45%	35%
1994	16%	43%	35%
1993	16%	41%	27%
1992	18%	38%	28%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2002-2023)
Year	Cosumnes River Elementary School	California	Elk Grove Unified School District
2023	2%	8%	4%
2022	2%	7%	4%
2021	1%	6%	6%
2020	3%	7%	10%
2019	3%	7%	10%
2018	4%	9%	12%
2017	4%	9%	12%
2016	2%	9%	12%
2015	4%	9%	12%
2014	2%	9%	11%
2013	3%	7%	10%
2011	4%	8%	11%
2010	3%	9%	13%
2009	3%	10%	13%
2008	4%	10%	14%
2007	1%	10%	12%
2006	2%	9%	11%
2005	1%	9%	12%
2004	2%	9%	10%
2003	1%	9%	10%
2002	1%	8%	8%

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School Statewide Testing

School District Name

Elk Grove Unified School District

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

<�鶹��ý class='so-dt-title' id="school-notes">School Notes

School Mascot: Roadrunners

Profile last updated: 02/09/2025

REQUEST FREE INFORMATION

<�鶹��ý class='so-dt-title' id='faq'>Frequently Asked Questions

What is Cosumnes River Elementary School's ranking?

Cosumnes River Elementary School is ranked #1086 out of 9,523 schools, which ranks it among the top 20% of public schools in California.

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

65-69% of students have achieved math proficiency (compared to the 34% CA state average), while 67% of students have achieved reading proficiency (compared to the 47% CA state average).

How many students attend Cosumnes River Elementary School?

337 students attend Cosumnes River Elementary School.

What is the racial composition of the student body?

60% of Cosumnes River Elementary School students are White, 23% of students are Hispanic, 11% of students are Two or more races, 4% of students are Asian, and 2% of students are Black.

What is the student-teacher ratio of Cosumnes River Elementary School?

Cosumnes River Elementary School has a student ration of 24:1, which is higher than the California state average of 21:1.

What grades does Cosumnes River Elementary School offer ?

Cosumnes River Elementary School offers enrollment in grades Kindergarten-6

What school district is Cosumnes River Elementary School part of?

Cosumnes River Elementary School is part of Elk Grove Unified School District.

School Reviews
5 10/10/2025
A great school - active PTA, lots of parent support and involovement, and community volunteerism without equal anywhere. Volleyball and track and field, art and drama and knitting clubs, a leadership club, a 2006 CA Distinguished School and a 2007 National Blue Ribbon School - what more can I say
- Posted by Parent - mrgsf
5 10/10/2025
A great school with lots of parent and community volunteerism. Sports and clubs are abundant for older kids. Award winning at state and national level. What more to say.
- Posted by Parent - mrgsf
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