[+] Show Closed Private Schools in Cook County, Illinois

Overview

Academics and Faculty:

# Teachers

10,021 Teachers

18,872 Teachers

Average Student-Teacher Ratio

13:1

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Student-Teacher Ratio Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	13:1	13:1	11:1
2024	13:1	13:1	11:1
2023	13:1	13:1	11:1
2022	13:1	13:1	11:1
2021	13:1	13:1	11:1
2020	13:1	13:1	12:1
2019	13:1	13:1	12:1
2018	14:1	14:1	12:1
2017	13:1	14:1	12:1
2016	14:1	14:1	12:1
2015	14:1	14:1	12:1

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% Average Faculty w/Advanced Degree

59%

53%

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Percentage of Faculty With Advanced Degrees Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	60%	53%	55%
2024	58%	52%	54%
2023	57%	50%	54%
2022	58%	51%	54%
2021	57%	50%	54%
2020	57%	50%	54%
2019	56%	50%	53%
2018	56%	49%	53%
2017	56%	48%	53%
2016	56%	49%	52%
2015	57%	50%	52%

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Average Class Size

17 students

16 students

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Class Size Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	17	16	15
2024	17	17	15
2023	18	17	15
2022	18	17	15
2021	17	17	15
2020	17	17	15
2019	17	17	15
2018	18	17	15
2017	18	17	15
2016	18	17	15
2015	17	17	15

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Average Number of AP Courses

13 courses

11 courses

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Trends in Average Number of AP Courses Offered
Year	Cook County Average	Illinois (IL) Average	National Average
2025	12	11	13
2024	10	9	12
2023	10	9	11
2022	11	9	11
2021	11	9	11
2020	10	9	11
2019	10	8	11
2018	10	8	11
2017	10	8	10
2016	10	9	10
2015	10	9	10

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Average SAT score

1282

(Out of 1600)

1259

View Data

SAT Score Trends (2019-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	1282	1258	1233
2024	1275	1260	1230
2023	1271	1245	1228
2022	1271	1242	1229
2021	1268	1252	1229
2020	1262	1246	1226
2019	1248	1239	1226

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Average ACT score

(Out of 36)

View Data

ACT Score Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	25	25	26
2024	25	25	26
2023	25	25	26
2022	25	25	26
2021	25	25	26
2020	25	25	25
2019	25	25	25
2018	25	25	25
2017	25	25	25
2016	24	24	25
2015	24	24	25

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$14,149

$12,457

View Data

Tuition Cost Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	$14,399	$12,671	$15,012
2024	$12,169	$9,594	$13,254
2023	$10,988	$8,924	$12,626
2022	$10,775	$8,609	$12,187
2021	$10,342	$8,334	$11,800
2020	$9,976	$8,312	$11,512
2019	$9,581	$8,068	$11,293
2018	$9,374	$7,898	$11,017
2017	$9,429	$7,863	$10,708
2016	$8,658	$7,289	$10,356
2015	$8,169	$7,003	$9,939

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Average Summer Program Cost

$756

$961

View Data

Summer Program Cost Trends (2019-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	$743	$943	$1,152
2024	$739	$947	$1,128
2023	$815	$1,009	$1,156
2022	$748	$1,138	$1,102
2021	$714	$672	$1,125
2020	$717	$667	$1,217
2019	$776	$687	$1,305

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Average % on Financial Aid

39%

34%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	39%	34%	34%
2024	38%	33%	34%
2023	38%	33%	34%
2022	38%	32%	33%
2021	37%	31%	33%
2020	37%	32%	32%
2019	37%	31%	31%
2018	37%	30%	30%
2017	37%	29%	30%
2016	36%	29%	29%
2015	37%	28%	28%

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Average Financial Aid Grant

$6,550

$4,422

View Data

Financial Aid Grant Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	$5,576	$3,868	$7,073
2024	$5,195	$3,415	$6,930
2023	$3,406	$2,426	$6,469
2022	$3,463	$2,492	$6,289
2021	$3,448	$2,514	$6,055
2020	$3,302	$2,509	$5,921
2019	$3,390	$2,541	$5,795
2018	$3,451	$2,466	$5,456
2017	$3,434	$2,525	$5,319
2016	$3,427	$2,614	$5,105
2015	$3,565	$2,666	$5,030

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Average Acceptance Rate

83%

85%

View Data

Acceptance Rate Trends (2015-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	83%	84%	81%
2024	89%	90%	85%
2023	90%	91%	85%
2022	89%	91%	85%
2021	90%	91%	85%
2020	90%	91%	85%
2019	89%	90%	85%
2018	89%	90%	85%
2017	88%	90%	85%
2016	91%	92%	85%
2015	91%	92%	85%

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Average Endowment Size

$52.11 million

$50.13 million

View Data

Endowment Trends (2024-2025)
Year	Cook County Average	Illinois (IL) Average	National Average
2025	$49 M	$34 M	$39 M
2024	$8 M	$14 M	$39 M

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Students by Ethnicity:

0.71

0.66

View Data

Diversity Score Trends
Year	Cook County Average	Illinois (IL) Average	National Average
2025	0.71	0.66	0.65
2024	0.71	0.66	0.65
2023	0.72	0.66	0.65
2022	0.71	0.65	0.64
2021	0.72	0.65	0.64
2020	0.72	0.66	0.64
2019	0.71	0.65	0.63
2018	0.71	0.65	0.63
2017	0.70	0.62	0.61
2016	0.70	0.62	0.61
2015	0.70	0.63	0.61

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# American Indian Students

347 Students

605 Students

% American Indian Students

n/a

# Asian Students

5,988 Students

10,480 Students

% Asian Students

View Data

Asian Student Percentage Trends
Year	Cook County Average	Illinois (IL) Average	National Average
2025	5%	5%	5%
2024	5%	5%	5%
2023	6%	5%	5%
2022	5%	4%	4%
2021	6%	5%	4%
2020	5%	4%	4%
2019	4%	4%	4%
2018	5%	5%	4%
2017	3%	4%	4%
2016	3%	3%	4%
2015	3%	4%	4%

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# Hispanic Students

17,508 Students

25,032 Students

% Hispanic Students

13%

10%

View Data

Hispanic Student Percentage Trends
Year	Cook County Average	Illinois (IL) Average	National Average
2025	13%	10%	9%
2024	13%	10%	9%
2023	13%	10%	9%
2022	13%	10%	8%
2021	13%	10%	9%
2020	13%	10%	9%
2019	13%	9%	8%
2018	13%	9%	8%
2017	12%	9%	8%
2016	13%	9%	8%
2015	12%	9%	8%

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# Black Students

15,635 Students

21,046 Students

% Black Students

12%

View Data

Black Student Percentage Trends
Year	Cook County Average	Illinois (IL) Average	National Average
2025	12%	8%	7%
2024	12%	8%	7%
2023	12%	8%	8%
2022	12%	8%	7%
2021	12%	8%	7%
2020	13%	9%	8%
2019	13%	9%	7%
2018	13%	9%	7%
2017	13%	9%	7%
2016	14%	9%	7%
2015	15%	9%	8%

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# White Students

58,147 Students

128,862 Students

% White Students

44%

51%

View Data

White Student Percentage Trends
Year	Cook County Average	Illinois (IL) Average	National Average
2025	44%	51%	52%
2024	44%	51%	52%
2023	43%	51%	52%
2022	44%	53%	54%
2021	43%	52%	54%
2020	43%	52%	54%
2019	43%	53%	56%
2018	44%	53%	56%
2017	47%	56%	58%
2016	46%	56%	58%
2015	46%	55%	58%

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# Hawaiian Students

194 Students

338 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

33,745 Students

65,479 Students

% of Others Students

26%

View Data

Other Races Student Percentage Trends
Year	Cook County Average	Illinois (IL) Average	National Average
2025	26%	26%	26%
2024	26%	26%	26%
2023	26%	26%	25%
2022	26%	25%	25%
2021	26%	25%	25%
2020	26%	25%	24%
2019	27%	25%	24%
2018	25%	24%	23%
2017	24%	22%	22%
2016	23%	23%	22%
2015	23%	23%	21%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

10 extracurriculars

9 extracurriculars

Average Number of Sports

7 sports

6 sports

Frequently Asked Questions

What are the top ranked private schools in Cook County, IL?

The private schools in Cook County, IL include Baker Demonstration School, Brother Rice High School - Chicago, and British International School of Chicago-South Loop.

How many private schools are located in Cook County?

732 private schools are located in Cook County.

How much do private schools cost in Cook County?

The average tuition cost is $14,149, which is higher than the Illinois private school average tuition cost of $12,457.

How diverse are private schools in Cook County?

Cook County private schools are approximately 44% minority students, which is higher than the Illinois private school average of 34%.

What percentage of students in Cook County go to private school?

16% of all K-12 students in Cook County are educated in private schools (compared to the IL state average of 12%).

What percentage of private schools are religiously affiliated in Cook County?

49% of private schools in Cook County are religiously affiliated (most commonly Catholic and Christian).

Which private schools in Cook County are often viewed compared to one another?

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Year	Cook County Average	Illinois (IL) Average	National Average
2025	185	166	179
2024	180	162	172
2023	190	171	174
2022	195	178	185
2021	191	174	180
2020	185	168	171
2019	191	174	175
2018	184	171	172
2017	188	177	180
2016	187	175	178
2015	177	168	167

Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Cook County Private Schools (2026-27)

Cook County Private Schools (Closed)

Overview

Trends in Total Number of Private Schools

Trends in the Average Number of Students Per Private School

Percentage of Students of Color Trends (2015-2025)

Academics and Faculty:

Student-Teacher Ratio Trends (2015-2025)

Percentage of Faculty With Advanced Degrees Trends (2015-2025)

Class Size Trends (2015-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2019-2025)

ACT Score Trends (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2019-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2024-2025)

Students by Ethnicity:

Diversity Score Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Extracurriculars and Sports:

Frequently Asked Questions

Recent Articles

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Best Cook County Private Schools (2026-27)

Top Ranked Cook County Private Schools (2026-27)

Cook County Private Schools (Closed)

Overview

Trends in Total Number of Private Schools

Trends in the Average Number of Students Per Private School

Percentage of Students of Color Trends (2015-2025)

Academics and Faculty:

Student-Teacher Ratio Trends (2015-2025)

Percentage of Faculty With Advanced Degrees Trends (2015-2025)

Class Size Trends (2015-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2019-2025)

ACT Score Trends (2015-2025)

Tuition and Acceptance Rate:

Tuition Cost Trends (2015-2025)

Summer Program Cost Trends (2019-2025)

Percent on Financial Aid Trends (2015-2025)

Financial Aid Grant Trends (2015-2025)

Acceptance Rate Trends (2015-2025)

Endowment Trends (2024-2025)

Students by Ethnicity:

Diversity Score Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Extracurriculars and Sports:

Frequently Asked Questions

More Articles