The average public high school in Illinois has approximately 836 students (2025-26).
The public high schools with the largest student enrollments are listed below (where sufficient data available).
The largest public high school in Illinois (by enrollment) is Adlai E Stevenson High School, with 4,614 students.
# Students Range: 2,615
4,614
Avg. # Students: 3,272
Largest Illinois Public High Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
# Students
Grades
Location
Rank: #11.
Adlai E Stevenson High School
(Math: 73% | Reading: 72%)
Rank:
Rank:
10/
Top 1%10
Students: 4,614
Grades: 9-12
1 Stevenson Dr
Lincolnshire, IL 60069
(847) 415-4000
Lincolnshire, IL 60069
(847) 415-4000
Rank: #22.
Lane Technical High School
(Math: 89% | Reading: 87%)
Rank:
Rank:
10/
Top 1%10
Students: 4,525
Grades: 7-12
2501 W Addison St
Chicago, IL 60618
(773) 534-5400
Chicago, IL 60618
(773) 534-5400
Rank: #33.
Taft High School
(Math: 27% | Reading: 32%)
Rank:
Rank:
7/
Top 50%10
Students: 4,416
Grades: 7-12
6530 W Bryn Mawr Ave
Chicago, IL 60631
(773) 534-1000
Chicago, IL 60631
(773) 534-1000
Rank: #44.
Waukegan High School
(Math: 5% | Reading: 7%)
Rank:
Rank:
1/
Bottom 50%10
Students: 4,325
Grades: 9-12
1011 Washington St
Waukegan, IL 60085
(224) 303-3000
Waukegan, IL 60085
(224) 303-3000
Rank: #55.
East High School
(Math: 6% | Reading: 8%)
Rank:
Rank:
1/
Bottom 50%10
Students: 4,019
Grades: 9-12
500 Tomcat Ln
Aurora, IL 60505
(630) 299-8000
Aurora, IL 60505
(630) 299-8000
Rank: #66.
Lockport Township High Sch East
(Math: 34% | Reading: 33%)
Rank:
Rank:
7/
Top 50%10
Students: 3,817
Grades: 9-12
1333 E 7th St
Lockport, IL 60441
(815) 588-8300
Lockport, IL 60441
(815) 588-8300
Rank: #77.
Lyons Twp High School
(Math: 54% | Reading: 49%)
Rank:
Rank:
10/
Top 10%10
Students: 3,767
Grades: 9-12
100 S Brainard Ave
La Grange, IL 60525
(708) 579-6300
La Grange, IL 60525
(708) 579-6300
Rank: #88.
Warren Township High School
(Math: 28% | Reading: 32%)
Rank:
Rank:
7/
Top 50%10
Students: 3,687
Grades: 9-12
34090 N Almond Rd
Gurnee, IL 60031
(847) 548-6611
Gurnee, IL 60031
(847) 548-6611
Rank: #99.
West Aurora High School
(Math: 16% | Reading: 19%)
Rank:
Rank:
4/
Bottom 50%10
Students: 3,655
Grades: 9-12
1201 W New York St
Aurora, IL 60506
(630) 301-5600
Aurora, IL 60506
(630) 301-5600
Rank: #1010.
Evanston Twp High School
(Math: 43% | Reading: 48%)
Rank:
Rank:
9/
Top 20%10
Students: 3,586
Grades: 9-12
1600 Dodge Ave
Evanston, IL 60201
(847) 424-7200
Evanston, IL 60201
(847) 424-7200
Rank: #1111.
J Sterling Morton West High School
(Math: 10% | Reading: 16%)
Rank:
Rank:
3/
Bottom 50%10
Students: 3,497
Grades: 9-12
2400 Home Ave
Berwyn, IL 60402
(708) 780-4100
Berwyn, IL 60402
(708) 780-4100
Rank: #1212.
J Sterling Morton East High School
(Math: 8% | Reading: 10%)
Rank:
Rank:
2/
Bottom 50%10
Students: 3,474
Grades: 10-12
2423 S Austin Blvd
Cicero, IL 60804
(708) 780-4000
Cicero, IL 60804
(708) 780-4000
Rank: #1313.
Joliet West High School
(Math: 16% | Reading: 21%)
Rank:
Rank:
4/
Bottom 50%10
Students: 3,436
Grades: 9-12
401 N Larkin Ave
Joliet, IL 60435
(815) 727-6940
Joliet, IL 60435
(815) 727-6940
Rank: #1414.
Joliet Central High School
(Math: 8% | Reading: 14%)
Rank:
Rank:
2/
Bottom 50%10
Students: 3,383
Grades: 9-12
201 E Jefferson St
Joliet, IL 60432
(815) 727-6740
Joliet, IL 60432
(815) 727-6740
Rank: #1515.
Bolingbrook High School
(Math: 24% | Reading: 22%)
Rank:
Rank:
5/
Bottom 50%10
Students: 3,371
Grades: 9-12
365 Raider Way
Bolingbrook, IL 60440
(630) 759-6400
Bolingbrook, IL 60440
(630) 759-6400
Rank: #1616.
Oak Park & River Forest High School
(Math: 50% | Reading: 57%)
Rank:
Rank:
10/
Top 10%10
Students: 3,256
Grades: 9-12
201 N Scoville Ave
Oak Park, IL 60302
(708) 383-0700
Oak Park, IL 60302
(708) 383-0700
Rank: #1717.
Curie Metropolitan High School
(Math: 10% | Reading: 10%)
Rank:
Rank:
2/
Bottom 50%10
Students: 3,136
Grades: 9-12
4959 S Archer Ave
Chicago, IL 60632
(773) 535-2100
Chicago, IL 60632
(773) 535-2100
Rank: #1818.
Glenbrook South High School
(Math: 57% | Reading: 59%)
Rank:
Rank:
10/
Top 10%10
Students: 3,015
Grades: 9-12
4000 W Lake Ave
Glenview, IL 60026
(847) 729-2000
Glenview, IL 60026
(847) 729-2000
Rank: #1919.
Neuqua Valley High School
(Math: 65% | Reading: 68%)
Rank:
Rank:
10/
Top 5%10
Students: 3,008
Grades: 9-12
2360 95th St
Naperville, IL 60564
(630) 428-6000
Naperville, IL 60564
(630) 428-6000
Rank: #2020.
Minooka Community High School
(Math: 26% | Reading: 34%)
Rank:
Rank:
7/
Top 50%10
Students: 2,985
Grades: 9-12
301 S Wabena Ave
Minooka, IL 60447
(815) 467-2140
Minooka, IL 60447
(815) 467-2140
Rank: #2121.
Carl Sandburg High School
(Math: 37% | Reading: 42%)
Rank:
Rank:
8/
Top 30%10
Students: 2,906
Grades: 9-12
13300 S La Grange Rd
Orland Park, IL 60462
(708) 671-3100
Orland Park, IL 60462
(708) 671-3100
Rank: #2222.
Oswego High School
(Math: 24% | Reading: 33%)
Rank:
Rank:
7/
Top 50%10
Students: 2,866
Grades: 9-12
4250 State Route 71
Oswego, IL 60543
(630) 636-2000
Oswego, IL 60543
(630) 636-2000
Rank: #2323.
Huntley High School
(Math: 34% | Reading: 46%)
Rank:
Rank:
8/
Top 30%10
Students: 2,856
Grades: 9-12
13719 Harmony Rd
Huntley, IL 60142
(847) 659-6600
Huntley, IL 60142
(847) 659-6600
Rank: #2424.
Metea Valley High School
(Math: 45% | Reading: 51%)
Rank:
Rank:
9/
Top 20%10
Students: 2,807
Grades: 9-12
1801 N Eola Rd
Aurora, IL 60502
(630) 375-5900
Aurora, IL 60502
(630) 375-5900
Rank: #25 - 2625. - 26.
Homewood-flossmoor High School
(Math: 16% | Reading: 24%)
Rank:
Rank:
4/
Bottom 50%10
Students: 2,805
Grades: 9-12
999 Kedzie Ave
Flossmoor, IL 60422
(708) 799-3000
Flossmoor, IL 60422
(708) 799-3000
Rank: #25 - 2625. - 26.
Oswego East High School
(Math: 36% | Reading: 38%)
Rank:
Rank:
8/
Top 30%10
Students: 2,805
Grades: 9-12
1525 Harvey Rd
Oswego, IL 60543
(630) 636-2200
Oswego, IL 60543
(630) 636-2200
Rank: #2727.
New Trier Township H S Winnetka
(Math: 71% | Reading: 71%)
Rank:
Rank:
10/
Top 5%10
Students: 2,792
Grades: 10-12
385 Winnetka Ave
Winnetka, IL 60093
(847) 446-7000
Winnetka, IL 60093
(847) 446-7000
Rank: #2828.
Waubonsie Valley High School
(Math: 47% | Reading: 49%)
Rank:
Rank:
9/
Top 20%10
Students: 2,781
Grades: 9-12
2590 Ogden Ave
Aurora, IL 60504
(630) 375-3300
Aurora, IL 60504
(630) 375-3300
Rank: #2929.
South Elgin High School
(Math: 24% | Reading: 30%)
Rank:
Rank:
6/
Top 50%10
Students: 2,770
Grades: 9-12
760 E Main St
South Elgin, IL 60177
(847) 289-3760
South Elgin, IL 60177
(847) 289-3760
Rank: #3030.
Barrington High School
(Math: 55% | Reading: 54%)
Rank:
Rank:
10/
Top 10%10
Students: 2,759
Grades: 9-12
616 W Main St
Barrington, IL 60010
(847) 381-1400
Barrington, IL 60010
(847) 381-1400
Rank: #3131.
Lincoln-way East High School
(Math: 54% | Reading: 52%)
Rank:
Rank:
10/
Top 10%10
Students: 2,728
Grades: 9-12
201 Colorado Ave
Frankfort, IL 60423
(815) 464-4130
Frankfort, IL 60423
(815) 464-4130
Rank: #3232.
Elgin High School
(Math: 12% | Reading: 11%)
Rank:
Rank:
3/
Bottom 50%10
Students: 2,724
Grades: 9-12
1200 Maroon Dr
Elgin, IL 60120
(847) 888-5100
Elgin, IL 60120
(847) 888-5100
Rank: #3333.
York Comm High School
(Math: 52% | Reading: 52%)
Rank:
Rank:
10/
Top 10%10
Students: 2,677
Grades: 9-12
355 W Saint Charles Rd
Elmhurst, IL 60126
(630) 617-2400
Elmhurst, IL 60126
(630) 617-2400
Rank: #3434.
Wm Fremd High School
(Math: 64% | Reading: 60%)
Rank:
Rank:
10/
Top 5%10
Students: 2,657
Grades: 9-12
1000 S Quentin Rd
Palatine, IL 60067
(847) 755-2610
Palatine, IL 60067
(847) 755-2610
Rank: #3535.
Niles West High School
(Math: 34% | Reading: 38%)
Rank:
Rank:
8/
Top 30%10
Students: 2,615
Grades: 9-12
5701 Oakton St
Skokie, IL 60077
(847) 626-2510
Skokie, IL 60077
(847) 626-2510
Show 100 more public schools in IL (out of 724 total schools)
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<麻豆果冻传媒 class='so-dt-title' id='faq'>Frequently Asked Questions
What is the Illinois average public high schools student size?
The Illinois average public high schools student size is 836 for 2025-26.
What are the public high schools with the largest student size in Illinois?
The best top ranked public high schools in Illinois include Adlai E Stevenson High School, Lane Technical High School and Taft High School.
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