Cossitt Ave Elementary School (Ranked Top 5% for 2025-26)

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Cossitt Ave Elementary School

115 W Cossitt Ave
La Grange, IL 60525

( shown in map)

10/

Top 5%

Serving 465 students in grades Kindergarten-6, Cossitt Ave Elementary School ranks in the top 5% of all schools in Illinois for overall test scores (math proficiency is top 5%, and reading proficiency is top 5%).

The percentage of students achieving is 66% (which is higher than the Illinois state average of 27%). The percentage of students achieving is 64% (which is higher than the Illinois state average of 30%).

The student-teacher ratio of 11:1 is lower than the Illinois state level of 13:1.

Minority enrollment is 22% of the student body (majority Hispanic), which is lower than the Illinois state average of 55% (majority Hispanic).

Quick Facts (2025-26)

Grades: Kindergarten-6
Enrollment: 465 students
Student-Teacher Ratio: 11:1
Minority Enrollment: 22%
: Top 5% in IL
: 66% (Top 5%)
: 64% (Top 5%)
: 85-89% (Top 1%)
Source: National Center for Education Statistics (NCES), IL Dept. of Education

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

Cossitt Ave Elementary School ranks among the top 20% of public schools in Illinois for:

Category

Attribute

Overall Rank

Highest overall rank (Top 5%)

Math Proficiency

Highest math proficiency (Top 5%)

Reading/Language Arts Proficiency

Highest reading/language arts proficiency (Top 5%)

Science Proficiency

Highest science proficiency (Top 1%)

Student Attention

Lowest student-teacher ratio (Top 20%)

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

Cossitt Ave Elementary School's student population of 465 students has declined by 10% over five school years.

The teacher population of 42 teachers has grown by 7% over five school years.

Grades Offered

Grades Kindergarten-6

View Data

Distribution of Students By Grade Trends
Grade	Cossitt Ave Elementary School
Pre-K	1
Kind	2
1	82
2	81
3	72
4	83
5	78
6	66

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Total Students

465 students

View Data

Total Students Trends Over Years (1987-2023)
Year	Cossitt Ave Elementary School
2023	486
2022	464
2021	495
2020	520
2019	520
2018	560
2017	560
2016	555
2015	594
2014	612
2013	625
2012	620
2011	622
2010	638
2009	666
2008	647
2007	629
2006	622
2005	591
2004	568
2003	558
2002	538
2001	545
2000	513
1999	523
1998	530
1997	534
1996	550
1995	547
1994	541
1993	527
1992	516
1991	505
1990	486
1989	468
1988	460
1987	424

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Gender %

Total Classroom Teachers

42 teachers

View Data

Total Classroom Teachers Trends Over Years (1990-2023)
Year	Cossitt Ave Elementary School
2023	44
2022	48
2018	38
2017	38
2016	38
2015	39
2014	43
2013	61
2012	43
2011	44
2010	48
2009	47
2008	37
2007	34
2006	38
2005	39
2004	38
2003	36
2002	35
2001	35
2000	34
1999	35
1998	35
1997	35
1996	38
1995	37
1994	34
1993	33
1992	34
1991	33
1990	30

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Year Founded

1905

School Calendar

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

Cossitt Ave Elementary School ranks within the top 5% of all 3,542 schools in Illinois (based off of combined math and reading proficiency testing data).

The of Cossitt Ave Elementary School is 0.38, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.

This School

State Level (IL)

#106 out of 3542 schools
(Top 5%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Cossitt Ave Elementary School
2023	#106
2022	#74
2021	#82
2019	#161
2018	#142
2017	#236
2016	#107
2015	#164
2014	#73
2013	#83
2012	#75

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66%

27%

View Data

Math Proficiency Comparison Over Years (2011-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	66%	27%	53%
2021	69%	28%	54%
2019	63%	33%	56%
2018	65%	32%	59%
2017	58%	32%	58%
2016	70%	31%	64%
2015	60%	29%	56%
2014	90%	59%	83%
2013	88%	58%	82%
2012	97%	80%	94%
2011	97%	80%	93%

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64%

30%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2022	64%	30%	61%
2021	61%	32%	53%
2019	69%	38%	66%
2018	71%	37%	59%
2017	66%	38%	69%
2016	68%	36%	62%
2015	69%	38%	64%
2014	87%	57%	79%
2013	88%	58%	78%
2012	95%	75%	91%
2011	95%	75%	91%

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85-89%

50%

Student-Teacher Ratio

11:1

13:1

View Data

Student-Teacher Ratio Comparison Over Years (1990-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	11:1	14:1	13:1
2022	10:1	14:1	10:1
2018	15:1	16:1	14:1
2017	15:1	15:1	14:1
2016	15:1	16:1	13:1
2015	15:1	16:1	14:1
2014	14:1	16:1	14:1
2013	10:1	13:1	10:1
2012	14:1	16:1	14:1
2011	14:1	16:1	14:1
2010	13:1	16:1	14:1
2009	14:1	16:1	14:1
2008	17:1	18:1	17:1
2007	19:1	17:1	17:1
2006	16:1	16:1	15:1
2005	15:1	16:1	15:1
2004	15:1	17:1	15:1
2003	16:1	16:1	15:1
2002	15:1	16:1	15:1
2001	16:1	16:1	14:1
2000	15:1	16:1	14:1
1999	15:1	16:1	15:1
1998	15:1	17:1	15:1
1997	15:1	17:1	15:1
1996	14:1	17:1	15:1
1995	15:1	17:1	16:1
1994	16:1	18:1	16:1
1993	16:1	18:1	16:1
1992	15:1	17:1	15:1
1991	16:1	17:1	15:1
1990	16:1	18:1	15:1

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American Indian

n/a

Asian

View Data

Asian Student Percentage Comparison Over Years (1991-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	2%	6%	2%
2022	2%	5%	2%
2021	1%	5%	2%
2020	2%	5%	3%
2019	2%	5%	3%
2018	1%	5%	2%
2017	1%	5%	2%
2016	1%	5%	2%
2015	1%	6%	2%
2014	2%	5%	2%
2013	3%	5%	3%
2012	3%	4%	3%
2011	3%	5%	2%
2010	3%	5%	3%
2009	3%	5%	4%
2008	3%	5%	4%
2007	2%	5%	3%
2006	2%	5%	3%
2005	2%	5%	3%
2004	2%	4%	2%
2003	2%	4%	2%
2002	2%	4%	2%
2001	3%	4%	2%
2000	2%	3%	2%
1999	2%	3%	2%
1998	2%	3%	2%
1997	1%	3%	2%
1996	1%	3%	1%
1995	1%	3%	2%
1994	2%	3%	2%
1993	1%	3%	2%
1992	1%	3%	2%
1991	1%	3%	2%

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Hispanic

11%

28%

View Data

Hispanic Student Percentage Comparison Over Years (1991-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	10%	27%	22%
2022	9%	27%	22%
2021	8%	27%	20%
2020	10%	26%	18%
2019	10%	26%	18%
2018	10%	26%	17%
2017	10%	26%	17%
2016	9%	26%	16%
2015	10%	25%	15%
2014	9%	25%	15%
2013	9%	24%	14%
2012	8%	24%	14%
2011	7%	23%	14%
2010	6%	22%	12%
2009	6%	22%	11%
2008	4%	21%	11%
2006	6%	19%	10%
2005	4%	18%	9%
2004	3%	18%	9%
2003	4%	17%	7%
2002	4%	16%	7%
2001	3%	15%	6%
2000	3%	15%	7%
1999	2%	14%	6%
1998	2%	13%	5%
1997	3%	13%	5%
1996	2%	12%	5%
1995	3%	12%	4%
1994	2%	11%	4%
1993	1%	11%	2%
1991	1%	10%	2%

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Black

17%

View Data

Black Student Percentage Comparison Over Years (1991-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	3%	17%	5%
2022	3%	17%	5%
2021	5%	17%	5%
2020	4%	17%	5%
2019	4%	17%	5%
2018	4%	17%	6%
2017	4%	17%	6%
2016	2%	17%	6%
2015	4%	17%	6%
2014	3%	17%	6%
2013	2%	18%	6%
2012	2%	18%	6%
2011	3%	18%	7%
2010	4%	20%	8%
2009	4%	20%	7%
2008	5%	20%	7%
2007	5%	20%	8%
2006	6%	20%	8%
2005	4%	20%	8%
2004	5%	21%	8%
2003	7%	21%	8%
2002	8%	21%	9%
2001	8%	21%	9%
2000	7%	21%	9%
1999	10%	21%	8%
1998	11%	21%	10%
1997	12%	20%	9%
1996	11%	21%	8%
1995	9%	20%	7%
1994	7%	21%	6%
1993	6%	21%	6%
1992	7%	21%	6%
1991	8%	21%	6%

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White

78%

45%

View Data

White Student Percentage Comparison Over Years (1991-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	79%	45%	66%
2022	80%	47%	66%
2021	81%	47%	68%
2020	80%	48%	70%
2019	80%	48%	70%
2018	83%	49%	74%
2017	83%	49%	74%
2016	85%	49%	75%
2015	83%	49%	75%
2014	84%	50%	76%
2013	84%	50%	75%
2012	85%	51%	75%
2011	86%	51%	76%
2010	87%	53%	77%
2009	87%	53%	78%
2008	88%	54%	78%
2007	89%	55%	77%
2006	86%	56%	79%
2005	90%	57%	80%
2004	90%	57%	81%
2003	87%	58%	83%
2002	86%	59%	82%
2001	86%	60%	83%
2000	88%	61%	82%
1999	86%	62%	84%
1998	85%	63%	83%
1997	84%	64%	84%
1996	86%	64%	86%
1995	87%	65%	87%
1994	89%	65%	88%
1993	92%	65%	90%
1992	92%	66%	90%
1991	90%	66%	90%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	6%	4%	5%
2022	6%	4%	5%
2021	5%	4%	5%
2020	4%	4%	4%
2019	4%	4%	4%
2018	2%	3%	1%
2017	2%	3%	1%
2016	3%	3%	1%
2015	2%	3%	2%
2014	2%	3%	1%
2013	2%	3%	2%

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All Ethnic Groups

0.38

0.69

View Data

Diversity Score Comparison Over Years (1991-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	0.36	0.70	0.51
2022	0.35	0.68	0.51
2021	0.34	0.68	0.49
2020	0.35	0.68	0.47
2019	0.35	0.68	0.47
2018	0.30	0.67	0.43
2017	0.30	0.67	0.43
2016	0.27	0.67	0.41
2015	0.30	0.67	0.41
2014	0.29	0.66	0.41
2013	0.29	0.66	0.41
2012	0.27	0.65	0.41
2011	0.27	0.66	0.41
2010	0.24	0.64	0.38
2009	0.24	0.64	0.37
2008	0.22	0.64	0.37
2007	0.21	0.63	0.38
2006	0.26	0.61	0.36
2005	0.19	0.61	0.35
2004	0.19	0.60	0.33
2003	0.24	0.59	0.31
2002	0.25	0.59	0.31
2001	0.26	0.58	0.31
2000	0.22	0.57	0.31
1999	0.25	0.56	0.28
1998	0.28	0.56	0.30
1997	0.28	0.54	0.28
1996	0.26	0.53	0.25
1995	0.24	0.53	0.23
1994	0.20	0.52	0.21
1993	0.16	0.52	0.18
1992	0.16	0.52	0.18
1991	0.20	0.52	0.19

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Eligible for

10%

43%

View Data

Free Lunch Eligibility Comparison Over Years (2003-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	9%	43%	16%
2022	10%	43%	16%
2021	9%	44%	16%
2020	5%	47%	14%
2019	5%	47%	14%
2018	8%	46%	14%
2017	8%	46%	14%
2016	7%	47%	14%
2015	3%	52%	11%
2014	4%	47%	13%
2013	4%	45%	13%
2012	2%	21%	5%
2011	4%	39%	12%
2010	6%	37%	13%
2009	5%	33%	10%
2008	4%	32%	9%
2007	4%	32%	9%
2006	5%	32%	9%
2005	4%	32%	9%
2004	4%	31%	8%
2003	5%	30%	8%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (2005-2023)
Year	Cossitt Ave Elementary School	Illinois	La Grange School District 102
2023	1%	4%	3%
2022	2%	4%	3%
2021	1%	4%	3%
2020	1%	2%	2%
2019	1%	2%	2%
2018	1%	4%	3%
2017	1%	4%	3%
2012	2%	27%	8%
2008	1%	6%	2%
2005	1%	5%	1%

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School Statewide Testing

School District Name

La Grange School District 102

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

Profile last updated: 02/09/2025

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

What is Cossitt Ave Elementary School's ranking?

Cossitt Ave Elementary School is ranked #106 out of 3,542 schools, which ranks it among the top 5% of public schools in Illinois.

What schools are Cossitt Ave Elementary School often compared to?

Cossitt Ave Elementary Schoolis often viewed alongside schools like Forest Road Elementary School, Ogden Ave Elementary School by visitors of our site.

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

66% of students have achieved math proficiency (compared to the 27% IL state average), while 64% of students have achieved reading proficiency (compared to the 30% IL state average).

How many students attend Cossitt Ave Elementary School?

465 students attend Cossitt Ave Elementary School.

What is the racial composition of the student body?

78% of Cossitt Ave Elementary School students are White, 11% of students are Hispanic, 7% of students are Two or more races, 2% of students are Asian, and 2% of students are Black.

What is the student-teacher ratio of Cossitt Ave Elementary School?

Cossitt Ave Elementary School has a student ration of 11:1, which is lower than the Illinois state average of 13:1.

What grades does Cossitt Ave Elementary School offer ?

Cossitt Ave Elementary School offers enrollment in grades Kindergarten-6

What school district is Cossitt Ave Elementary School part of?

Cossitt Ave Elementary School is part of La Grange School District 102.

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Quick Facts (2025-26)

Grades: Kindergarten-6
Enrollment: 465 students
Student-Teacher Ratio: 11:1
Minority Enrollment: 22%
: Top 5%
: 66% (Top 5%)
: 64% (Top 5%)
: 85-89% (Top 1%)
Source: National Center for Education Statistics (NCES), IL Dept. of Education