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

Overview

Academics and Faculty:

# Teachers

977 Teachers

18,893 Teachers

Average Student-Teacher Ratio

12:1

13:1

View Data

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

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% Average Faculty w/Advanced Degree

56%

53%

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

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Average Class Size

14 students

17 students

View Data

Class Size Trends (2015-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	14	16	15
2024	14	17	15
2023	14	17	15
2022	14	17	15
2021	14	17	15
2020	14	17	15
2019	14	17	15
2018	14	17	15
2017	14	17	15
2016	15	17	15
2015	15	17	15

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Average Number of AP Courses

15 courses

11 courses

View Data

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

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Average SAT score

1375

(Out of 1600)

1259

View Data

SAT Score Trends (2019-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	1365	1258	1233
2024	1365	1260	1230
2023	1295	1245	1228
2022	1295	1242	1229
2021	1295	1252	1229
2020	1290	1246	1226
2019	1290	1239	1226

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Average ACT score

(Out of 36)

View Data

ACT Score Trends (2015-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	31	25	26
2024	27	25	26
2023	26	25	26
2022	26	25	26
2021	26	25	26
2020	26	25	25
2019	26	25	25
2018	26	25	25
2017	26	25	25
2016	26	24	25
2015	26	24	25

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Tuition and Acceptance Rate:

Average Yearly Tuition Cost

$14,676

$10,447

View Data

Tuition Cost Trends (2015-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	$17,641	$12,671	$15,012
2024	$14,747	$9,594	$13,254
2023	$14,065	$8,924	$12,626
2022	$13,895	$8,609	$12,187
2021	$14,095	$8,334	$11,800
2020	$16,312	$8,312	$11,512
2019	$15,201	$8,068	$11,293
2018	$15,344	$7,898	$11,017
2017	$14,543	$7,863	$10,708
2016	$9,111	$7,289	$10,356
2015	$8,790	$7,003	$9,939

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Average Summer Program Cost

$3,975

$961

View Data

Summer Program Cost Trends (2019-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	$3,975	$943	$1,152
2024	$3,975	$947	$1,128
2023	$3,975	$1,009	$1,156
2022	$3,975	$1,138	$1,102
2021	$3,975	$672	$1,125
2020	$3,975	$667	$1,217
2019	$3,975	$687	$1,305

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Average % on Financial Aid

22%

34%

View Data

Percent on Financial Aid Trends (2015-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	25%	34%	34%
2024	25%	33%	34%
2023	26%	33%	34%
2022	22%	32%	33%
2021	22%	31%	33%
2020	21%	32%	32%
2019	21%	31%	31%
2018	22%	30%	30%
2017	21%	29%	30%
2016	15%	29%	29%
2015	17%	28%	28%

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Average Financial Aid Grant

$3,247

$4,394

View Data

Financial Aid Grant Trends (2015-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	$2,935	$3,868	$7,073
2024	$2,935	$3,415	$6,930
2023	$2,935	$2,426	$6,469
2022	$3,247	$2,492	$6,289
2021	$3,247	$2,514	$6,055
2020	$3,372	$2,509	$5,921
2019	$3,372	$2,541	$5,795
2018	$3,596	$2,466	$5,456
2017	$3,164	$2,525	$5,319
2016	$3,696	$2,614	$5,105
2015	$3,696	$2,666	$5,030

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Average Acceptance Rate

84%

89%

View Data

Acceptance Rate Trends (2015-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	86%	84%	81%
2024	84%	90%	85%
2023	83%	91%	85%
2022	86%	91%	85%
2021	87%	91%	85%
2020	87%	91%	85%
2019	88%	90%	85%
2018	88%	90%	85%
2017	89%	90%	85%
2016	94%	92%	85%
2015	94%	92%	85%

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Average Endowment Size

$42.1 million

$12.3 million

View Data

Endowment Trends (2024-2025)
Year	Lake County Average	Illinois (IL) Average	National Average
2025	$194 M	$34 M	$39 M
2024	$45 M	$14 M	$39 M

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Students by Ethnicity:

0.67

0.66

View Data

Diversity Score Trends
Year	Lake County Average	Illinois (IL) Average	National Average
2025	0.66	0.66	0.65
2024	0.66	0.66	0.65
2023	0.65	0.66	0.65
2022	0.63	0.65	0.64
2021	0.63	0.65	0.64
2020	0.63	0.66	0.64
2019	0.63	0.65	0.63
2018	0.64	0.65	0.63
2017	0.60	0.62	0.61
2016	0.61	0.62	0.61
2015	0.61	0.63	0.61

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# American Indian Students

29 Students

605 Students

% American Indian Students

n/a

# Asian Students

532 Students

10,480 Students

% Asian Students

View Data

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

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# Hispanic Students

1,232 Students

25,029 Students

% Hispanic Students

10%

View Data

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

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# Black Students

649 Students

21,042 Students

% Black Students

View Data

Black Student Percentage Trends
Year	Lake County Average	Illinois (IL) Average	National Average
2025	5%	8%	7%
2024	5%	8%	7%
2023	5%	8%	8%
2022	5%	8%	7%
2021	5%	8%	7%
2020	5%	9%	8%
2019	5%	9%	7%
2018	5%	9%	7%
2017	5%	9%	7%
2016	5%	9%	7%
2015	4%	9%	8%

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# White Students

5,542 Students

128,851 Students

% White Students

47%

51%

View Data

White Student Percentage Trends
Year	Lake County Average	Illinois (IL) Average	National Average
2025	47%	51%	52%
2024	47%	51%	52%
2023	49%	51%	52%
2022	53%	53%	54%
2021	53%	52%	54%
2020	53%	52%	54%
2019	53%	53%	56%
2018	51%	53%	56%
2017	57%	56%	58%
2016	57%	56%	58%
2015	57%	55%	58%

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# Hawaiian Students

17 Students

338 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

3,850 Students

65,524 Students

% of Others Students

33%

26%

View Data

Other Races Student Percentage Trends
Year	Lake County Average	Illinois (IL) Average	National Average
2025	32%	26%	26%
2024	33%	26%	26%
2023	32%	26%	25%
2022	29%	25%	25%
2021	29%	25%	25%
2020	29%	25%	24%
2019	28%	25%	24%
2018	30%	24%	23%
2017	25%	22%	22%
2016	25%	23%	22%
2015	26%	23%	21%

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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars

9 extracurriculars

Average Number of Sports

6 sports

Frequently Asked Questions

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

The private schools in Lake County, IL include Lake Forest Country Day School, Lake Forest Academy, and North Shore Torah Academy.

How many private schools are located in Lake County?

100 private schools are located in Lake County.

How much do private schools cost in Lake County?

The average tuition cost is $14,676, which is higher than the Illinois private school average tuition cost of $10,447.

How diverse are private schools in Lake County?

Lake County private schools are approximately 32% minority students, which is lower than the Illinois private school average of 34%.

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

8% of all K-12 students in Lake County are educated in private schools (compared to the IL state average of 12%).

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

35% of private schools in Lake County are religiously affiliated (most commonly Catholic and Christian).

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

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Year	Lake County Average	Illinois (IL) Average	National Average
2025	134	166	179
2024	135	162	172
2023	139	171	174
2022	143	178	185
2021	137	174	180
2020	136	168	171
2019	144	174	175
2018	148	171	172
2017	157	177	180
2016	158	175	178
2015	157	168	167

Quick Facts (26-27)

Quick Facts (26-27)

Top Ranked Lake County Private Schools (2026-27)

Lake 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 Lake County Private Schools

Top Ranked Lake County Private Schools (2026-27)

Lake 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