[+] Show Closed Private Schools in Arlington Heights, Illinois

Arlington Heights, Illinois Private Schools (Closed)

Northwest Suburban Montessori School

Gr: PK-K | 86 students

Montessori School

800 N Fernandez Ave Ste C

Arlington Heights, IL 60004

(847) 259-6044

(2)

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Arlington Heights, IL Private School Trends (10-Year)

Private Schools

3,238

Students

-23.4% (-990 students) 10-yr

$30,847

Avg. Tuition

+11.2% (+$3,099) 8-yr

Avg. Class Size

-25.0% (-6 students) 10-yr

13%

Students of Color

-18.8% (-3.0 pp) 10-yr

13:1

Student-Teacher Ratio

-18.8% (-3.0) 10-yr

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Enrollment & Diversity

Category

This Town (Arlington Heights)

This State (IL)

# Schools

16 Schools

1,624 Schools

View Data

Trends in Total Number of Private Schools
Year	Arlington Heights, IL Total Schools
2025	16
2024	17
2023	17
2022	17
2021	17
2020	18
2019	17
2018	17
2017	17
2016	17
2015	16

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# Students

3,238 Students

251,350 Students

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Trends in the Average Number of Students Per Private School
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	231	166	179
2024	221	162	172
2023	230	171	174
2022	210	178	185
2021	210	174	180
2020	203	168	171
2019	182	174	175
2018	186	171	172
2017	223	177	180
2016	277	175	178
2015	302	168	167

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% Students of Color

13%

34%

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Percentage of Students of Color Trends (2015-2025)
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	13%	34%	34%
2024	13%	34%	34%
2023	18%	34%	33%
2022	18%	34%	33%
2021	18%	34%	32%
2020	18%	35%	32%
2019	19%	33%	31%
2018	19%	33%	31%
2017	16%	34%	32%
2016	16%	34%	32%
2015	16%	35%	32%

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0.47

0.66

View Data

Diversity Score Trends
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	0.46	0.66	0.65
2024	0.48	0.66	0.65
2023	0.52	0.66	0.65
2022	0.49	0.65	0.64
2021	0.49	0.65	0.64
2020	0.51	0.66	0.64
2019	0.55	0.65	0.63
2018	0.56	0.65	0.63
2017	0.49	0.62	0.61
2016	0.49	0.62	0.61
2015	0.50	0.63	0.61

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Show more data/charts: racial breakdown

# American Indian Students

2 Students

605 Students

% American Indian Students

n/a

# Asian Students

218 Students

10,480 Students

% Asian Students

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Asian Student Percentage Trends
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	7%	5%	5%
2024	7%	5%	5%
2023	9%	5%	5%
2022	10%	4%	4%
2021	10%	5%	4%
2020	10%	4%	4%
2019	11%	4%	4%
2018	11%	5%	4%
2017	8%	4%	4%
2016	8%	3%	4%
2015	8%	4%	4%

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# Hispanic Students

78 Students

25,032 Students

% Hispanic Students

10%

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Hispanic Student Percentage Trends
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	2%	10%	9%
2024	2%	10%	9%
2023	4%	10%	9%
2022	3%	10%	8%
2021	3%	10%	9%
2020	3%	10%	9%
2019	4%	9%	8%
2018	3%	9%	8%
2017	2%	9%	8%
2016	2%	9%	8%
2015	2%	9%	8%

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# Black Students

27 Students

21,046 Students

% Black Students

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Black Student Percentage Trends
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	1%	8%	7%
2024	1%	8%	7%
2023	1%	8%	8%
2022	1%	8%	7%
2021	1%	8%	7%
2020	1%	9%	8%
2019	1%	9%	7%
2018	1%	9%	7%
2017	1%	9%	7%
2016	1%	9%	7%
2015	1%	9%	8%

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# White Students

2,325 Students

128,862 Students

% White Students

70%

51%

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White Student Percentage Trends
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	71%	51%	52%
2024	69%	51%	52%
2023	66%	51%	52%
2022	69%	53%	54%
2021	69%	52%	54%
2020	67%	52%	54%
2019	62%	53%	56%
2018	61%	53%	56%
2017	68%	56%	58%
2016	68%	56%	58%
2015	68%	55%	58%

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# Hawaiian Students

4 Students

338 Students

% Hawaiian Students

n/a

# Two or more races Students

n/a

% of Two or more races Students

n/a

# Others Students

647 Students

65,479 Students

% of Others Students

20%

26%

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Other Races Student Percentage Trends
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	19%	26%	26%
2024	21%	26%	26%
2023	20%	26%	25%
2022	17%	25%	25%
2021	17%	25%	25%
2020	19%	25%	24%
2019	22%	25%	24%
2018	24%	24%	23%
2017	21%	22%	22%
2016	21%	23%	22%
2015	21%	23%	21%

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All Ethnic Groups

Academics

# Teachers

243 Teachers

18,872 Teachers

Average Student-Teacher Ratio

13:1

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Student-Teacher Ratio Trends (2015-2025)
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	14:1	13:1	11:1
2024	14:1	13:1	11:1
2023	13:1	13:1	11:1
2022	12:1	13:1	11:1
2021	12:1	13:1	11:1
2020	12:1	13:1	12:1
2019	12:1	13:1	12:1
2018	12:1	14:1	12:1
2017	14:1	14:1	12:1
2016	15:1	14:1	12:1
2015	16:1	14:1	12:1

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% Average Faculty w/Advanced Degree

50%

53%

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Percentage of Faculty With Advanced Degrees Trends (2017-2025)
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	50%	53%	55%
2024	50%	52%	54%
2023	50%	50%	54%
2022	50%	51%	54%
2021	50%	50%	54%
2020	50%	50%	54%
2019	70%	50%	53%
2018	60%	49%	53%
2017	60%	48%	53%

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Average Class Size

18 students

16 students

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Class Size Trends (2015-2025)
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	18	16	15
2024	17	17	15
2023	17	17	15
2022	17	17	15
2021	17	17	15
2020	17	17	15
2019	16	17	15
2018	18	17	15
2017	18	17	15
2016	24	17	15
2015	24	17	15

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Average Number of AP Courses

6 courses

11 courses

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Trends in Average Number of AP Courses Offered
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	6	11	13
2024	6	9	12
2023	6	9	11
2022	6	9	11
2021	6	9	11
2020	6	9	11
2019	6	8	11
2018	6	8	11
2017	6	8	10

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Average SAT score

1200

(Out of 1600)

1259

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SAT Score Trends (2019-2025)
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	1200	1258	1233
2024	1200	1260	1230
2023	1200	1245	1228
2022	1200	1242	1229
2021	1200	1252	1229
2020	1200	1246	1226
2019	1200	1239	1226

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Average ACT score

(Out of 36)

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ACT Score Trends (2017-2025)
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	29	25	26
2024	29	25	26
2023	28	25	26
2022	28	25	26
2021	28	25	26
2020	28	25	25
2019	28	25	25
2018	28	25	25
2017	28	25	25

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Tuition & Aid

Average Yearly Tuition Cost

$30,847

$12,457

View Data

Tuition Cost Trends (2017-2025)
Year	Arlington Heights, IL Avg	Illinois (IL)	National
2025	$30,519	$12,671	$15,012
2024	$30,082	$9,594	$13,254
2023	$26,748	$8,924	$12,626
2022	$24,942	$8,609	$12,187
2021	$24,942	$8,334	$11,800
2020	$24,942	$8,312	$11,512
2019	$46,000	$8,068	$11,293
2018	$45,800	$7,898	$11,017
2017	$27,748	$7,863	$10,708

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Average Endowment Size

$2 million

$50.13 million

Admissions & Athletics

Average Acceptance Rate

95%

85%

Average Number of Extracurriculars

10 extracurriculars

9 extracurriculars

Average Number of Sports

8 sports

6 sports

Frequently Asked Questions

What are the top ranked private schools in Arlington Heights, IL?

The private schools in Arlington Heights, IL include Our Lady Of The Wayside School, Christian Liberty Academy, and St. Peter Lutheran School.

How many private schools are located in Arlington Heights?

16 private schools are located in Arlington Heights.

How diverse are private schools in Arlington Heights?

Arlington Heights private schools are approximately 13% minority students, which is lower than the Illinois private school average of 34%.

What percentage of students in Arlington Heights go to private school?

28% of all K-12 students in Arlington Heights are educated in private schools (compared to the IL state average of 12%).

What percentage of private schools are religiously affiliated in Arlington Heights?

31% of private schools in Arlington Heights are religiously affiliated (most commonly Catholic and Lutheran Church Missouri Synod).

Which private schools in Arlington Heights are often viewed compared to one another?

Popular comparisons of private schools in Arlington Heights include: Bright Horizons vs. Arlington Montessori School, Arlington Montessori School vs. Bright Horizons, St. James School vs. Our Lady Of The Wayside School

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Quick Facts (2026-27)

Quick Facts (2026-27)

Top Ranked Arlington Heights Private Schools (2026-27)

Arlington Heights, Illinois Private Schools (Closed)

Arlington Heights, IL Private School Trends (10-Year)

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)

Diversity Score Trends

Asian Student Percentage Trends

Hispanic Student Percentage Trends

Black Student Percentage Trends

White Student Percentage Trends

Other Races Student Percentage Trends

Student-Teacher Ratio Trends (2015-2025)

Percentage of Faculty With Advanced Degrees Trends (2017-2025)

Class Size Trends (2015-2025)

Trends in Average Number of AP Courses Offered

SAT Score Trends (2019-2025)

ACT Score Trends (2017-2025)

Tuition Cost Trends (2017-2025)

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