For the 2025 school year, there are 133 nonsectarian private high schools in Illinois. You can also find more religiously affiliated schools in Illinois.
The top ranked nonsectarian private high schools in Illinois include Lake Forest Academy, British International School of Chicago-South Loop, and The Latin School Of Chicago.
Top Ranked Nonsectarian Private High Schools in Illinois (2025)
School
Location
Grades
Students
6245 S. Ingleside Avenue
Chicago, IL 60637
(773) 420-2900
Chicago, IL 60637
(773) 420-2900
Grades: 4-12
| 111 students
Fusion Academy Evanston![Fusion Academy Evanston Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more. Fusion Academy Evanston Photo - Each Fusion campus has a state-of-the-art music studio with professional-grade tools. Students can explore instruments, vocals, songwriting, DJ performing arts, and more.]()

Alternative School
847 Chicago Avenue, Suite 200
Evanston, IL 60202
(877) 673-8893
Evanston, IL 60202
(877) 673-8893
Grades: 6-12
| n/a students
840 S. Waukegan Road, Suite 224
Lake Forest, IL 60045
(877) 673-8893
Lake Forest, IL 60045
(877) 673-8893
Grades: 6-12
| 67 students
Fusion Academy Lincoln Park![Fusion Academy Lincoln Park Photo Fusion Academy Lincoln Park Photo]()

Special Program Emphasis
1440 N. Dayton Street, Suite 104
Chicago, IL 60642
(877) 673-8893
Chicago, IL 60642
(877) 673-8893
Grades: 6-12
| 40 students
Fusion Academy Oak Brook![Fusion Academy Oak Brook Photo - Classes at Fusion are one-to-one: one student and one teacher per classroom. Students have different teachers for different subjects, and teachers act as mentors in the one-to-one setting. Fusion Academy Oak Brook Photo - Classes at Fusion are one-to-one: one student and one teacher per classroom. Students have different teachers for different subjects, and teachers act as mentors in the one-to-one setting.]()

Alternative School
3041 Butterfield Road, Suite 200
Oak Brook, IL 60523
(877) 673-8893
Oak Brook, IL 60523
(877) 673-8893
Grades: 6-12
| 29 students
American School![American School Photo American School Photo]()

Alternative School
2200 E 170th St
Lansing, IL 60438
(708) 418-2800
Lansing, IL 60438
(708) 418-2800
Grades: 6-12
| 6,319 students
Beacon Academy![Beacon Academy Photo Beacon Academy Photo]()

Montessori School
1574 Sherman Avenue
Evanston, IL 60201
(224) 999-1177
Evanston, IL 60201
(224) 999-1177
Grades: 9-12
| 150 students
955 W. Grand Ave.
Chicago, IL 60642
(312) 236-6388
Chicago, IL 60642
(312) 236-6388
Grades: PK-12
| 364 students
Brightmont Academy - Barrington![Brightmont Academy - Barrington Photo - one teacher one student Brightmont Academy - Barrington Photo - one teacher one student]()

Special Program Emphasis
400 E. Main St.
Barrington, IL 60010
(224) 231-0310
Barrington, IL 60010
(224) 231-0310
Grades: 1-12
| n/a students
Brightmont Academy - Naperville![Brightmont Academy - Naperville Photo - one teacher one student Brightmont Academy - Naperville Photo - one teacher one student]()

Special Program Emphasis
445 Jackson Ave.
Naperville, IL 60540
(331) 260-0334
Naperville, IL 60540
(331) 260-0334
Grades: 1-12
| n/a students
161 West 9th Street
Chicago, IL 60605
(773) 998-2472
Chicago, IL 60605
(773) 998-2472
Grades: NS-12
| 717 students
Carmel Montessori Academy & Children's House
Montessori School
3s238 State Route 59
Warrenville, IL 60555
(630) 393-2995
Warrenville, IL 60555
(630) 393-2995
Grades: PK-12
| 41 students
Dr Pedro Albizu Campos Puerto Rican High School![Dr Pedro Albizu Campos Puerto Rican High School Photo Dr Pedro Albizu Campos Puerto Rican High School Photo]()

Alternative School
2739-41 W. Division Street
Chicago, IL 60622
(773) 342-8022
Chicago, IL 60622
(773) 342-8022
Grades: 10-12
| 165 students
330 W Webster Ave
Chicago, IL 60614
(773) 797-5501
Chicago, IL 60614
(773) 797-5501
Grades: PK-12
| 907 students
9 West Washington St, Fourth Floor
Chicago, IL 60602
(312) 643-0091
Chicago, IL 60602
(312) 643-0091
Grades: 9-12
| 50 students
219 West Main Street
Belleville, IL 62220
(618) 233-7542
Belleville, IL 62220
(618) 233-7542
Grades: PK-12
| 102 students
Howard Area Leadership Academy
Alternative School
7647 N Paulina Ave
Chicago, IL 60626
(773) 381-0366
Chicago, IL 60626
(773) 381-0366
Grades: 10-12
| 126 students
Kemmerer Village School
Special Education School
941 N 2500 East Rd
Assumption, IL 62510
(217) 226-2159
Assumption, IL 62510
(217) 226-2159
Grades: 7-11
| 13 students
59 W North Blvd
Chicago, IL 60610
(312) 582-6014
Chicago, IL 60610
(312) 582-6014
Grades: PK-12
| 1,172 students
1929 W. Wilson Avenue
Chicago, IL 60640
(773) 665-0066
Chicago, IL 60640
(773) 665-0066
Grades: PK-12
| 777 students
3250 N. Arlington Heights Road Suite 200
Arlington Heights, IL 60004
(847) 588-0463
Arlington Heights, IL 60004
(847) 588-0463
Grades: 6-12
| 122 students
310 Green Bay Rd
Winnetka, IL 60093
(847) 446-0674
Winnetka, IL 60093
(847) 446-0674
Grades: PK-12
| 520 students
Parkland Preparatory Academy
Special Education School
804 W Bartlett Rd
Bartlett, IL 60103
(630) 540-7496
Bartlett, IL 60103
(630) 540-7496
Grades: K-12
| 265 students
119 S Central Park Blvd
Chicago, IL 60624
(773) 265-2204
Chicago, IL 60624
(773) 265-2204
Grades: PK-12
| 317 students
906 Muir Avenue
Lake Bluff, IL 60044
(847) 707-8373
Lake Bluff, IL 60044
(847) 707-8373
Grades: 6-12
| 44 students
1362 E 59th Street
Chicago, IL 60637
(773) 702-9450
Chicago, IL 60637
(773) 702-9450
Grades: PK-12
| 2,224 students
524 N. Wolcott Ave.
Chicago, IL 60622
(312) 610-4900
Chicago, IL 60622
(312) 610-4900
Grades: 9-12
| 149 students
5726 S Stony Island Ave
Chicago, IL 60637
(708) 720-4547
Chicago, IL 60637
(708) 720-4547
Grades: 9-12
| 7 students
Abraxas Naperville Bridge
Alternative School
2221 64th St
Woodridge, IL 60517
(630) 824-4574
Woodridge, IL 60517
(630) 824-4574
Grades: 10-12
| 30 students
Show 98 more private schools in Illinois (out of 133 total schools)
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