For the 2026 school year, there are 4 private schools serving 289 students in Addison, IL (there are 13 public schools, serving 5,346 public students). 5% of all K-12 students in Addison, IL are educated in private schools (compared to the IL state average of 12%).
The top-ranked private schools in Addison, IL include Innovations Academy Therapeutic Day School and Sunrise Montessori Academy.
The average acceptance rate is 95%, which is higher than the Illinois private school average acceptance rate of 84%.
25% of private schools in Addison, IL are religiously affiliated (most commonly Catholic).
Top-Ranked Addison Private Schools (2026)
School
Location
Quick Facts
301 S Swift Rd Ste F
Addison, IL 60101
(630) 540-3900
Addison, IL 60101
(630) 540-3900
Gr: 3-12 | 32 students Avg. class size: 10 students Tuition listed
Sunrise Montessori Academy
Montessori School
960 W Army Trail Blvd
Addison, IL 60101
(630) 628-9000
Addison, IL 60101
(630) 628-9000
Gr: PK-K | 14 students
1233 W Holtz Ave
Addison, IL 60101
(630) 543-4130
Addison, IL 60101
(630) 543-4130
Gr: PK-8 | 243 students Avg. class size: 20 students Sports: 2 | Extracurrculars: 12 Tuition & acceptance rate listed
Addison, Illinois Private Schools (Closed)
School
Location
Quick Facts
555 North Lombard Road
Addison, IL 60101
(630) 543-6310
Addison, IL 60101
(630) 543-6310
Gr: 9-12 Avg. class size: 21 students Tuition listed
St. Joseph School (Closed 2010)
(Catholic)
330 E Fullerton Ave
Addison, IL 60101
(630) 279-6553
Addison, IL 60101
(630) 279-6553
Gr: K-5 | 127 students
Overview
This Town (Addison)
This State (IL)
# Schools
4 Schools
Student Body:
# Students
289 Students
252,195 Students
% Average Students of Color
26%
34%
Academics and Faculty:
# Teachers
23 Teachers
18,845 Teachers
Average Student-Teacher Ratio
13:1
13:1
% Average Faculty w/Advanced Degree
6%
53%
Average Class Size
15 students
16 students
Average Number of AP Courses
15 courses
11 courses
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$25,245
$12,671
Average Financial Aid Grant
$2,000
$3,868
Average Acceptance Rate
95%
84%
Students by Ethnicity:
Diversity Score
0.63
0.66
# American Indian Students
n/a
605 Students
% American Indian Students
n/a
n/a
# Asian Students
23 Students
10,504 Students
% Asian Students
8%
4%
# Hispanic Students
28 Students
25,140 Students
% Hispanic Students
9%
10%
# Black Students
9 Students
21,085 Students
% Black Students
3%
9%
# White Students
159 Students
129,137 Students
% White Students
55%
51%
# Hawaiian Students
n/a
338 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
72 Students
65,580 Students
% of Others Students
25%
26%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Extracurriculars
12 extracurriculars
9 extracurriculars
Average Number of Sports
2 sports
6 sports
Frequently Asked Questions
What are the top-ranked private schools in Addison, IL?
The top-ranked private schools in Addison, IL include Innovations Academy Therapeutic Day School and Sunrise Montessori Academy.
How many private schools are located in Addison?
4 private schools are located in Addison.
What percentage of students in Addison go to private school?
5% of all K-12 students in Addison are educated in private schools (compared to the IL state average of 12%).
What percentage of private schools are religiously affiliated in Addison?
25% of private schools in Addison are religiously affiliated (most commonly Catholic).
Recent Articles
Inclusive Education in Private Schools 2026: Neurodiversity & Special Needs Support
Explore how private schools support inclusive education, neurodiversity, and special needs in 2026—with trends, policies, and practical models for parents and educators.
International Student Support Services in Private Schools
Explore international student support services in private schools, including housing, visa help, and cultural transition resources for 2026.