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²ÝÁñÉçÇø School Review - Established 2003
Fusion Academy Oak Brook
The Chicago Academy For The Arts
Morgan Park Academy

Oldest ²ÝÁñÉçÇø High Schools in Illinois

The average private high school in Illinois was founded around 1961 (2026-27).
The oldest private high school in Illinois is Mother Mcauley Liberal Arts High School, founded in 1846.

Quick Facts (2026-27)

  • # IL Schools Ranked: 272
  • Top 20 Range (Year Founded): 1846–1882
  • IL School Avg.: 1961
  • National School Avg.: 1967

Quick Facts (2026-27)

  • # IL Schools Ranked: 272
  • Top 20 Range (Year Founded): 1846–1882
  • IL School Avg.: 1961
  • National School Avg.: 1967
Show school map — Illinois (year founded range: 1846–1882, avg 1961)
Year Founded Range: 1846 1900 Avg. Year Founded: 1876

Oldest ²ÝÁñÉçÇø High Schools in Illinois (2026-27)

Showing 272 schools
Mother Mcauley Liberal Arts High School Photo
#1Mother Mcauley Liberal Arts High School
Gr: 9-12 | 832 students
Avg. class size: 21 students
Sports: 14 | Extracurriculars: 37
All-girls (Catholic)
3737 W 99th Street
Chicago, IL 60655
(773) 881-6507
1846year founded
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Map of Chaddock
#2(°Õ2–T3)Chaddock
Gr: K-12 | 77 students
Special Education School (African Methodist Episcopal)
205 S 24th St
Quincy, IL 62301
(217) 592-0323
(1)
1853year founded
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Wheaton Academy Photo
#2(°Õ2–T3) Wheaton Academy
Gr: 9-12 | 667 students
Avg. class size: 18 students
Sports: 13 | Extracurriculars: 28
Christian
900 Prince Crossing Rd
West Chicago, IL 60185
(630) 562-7500
1853year founded
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Lake Forest Academy Photo
#4Lake Forest Academy
Gr: 9-12 | 452 students
Avg. class size: 12 students
Sports: 15 | Extracurriculars: 25
1500 W Kennedy Rd
Lake Forest, IL 60045
(847) 615-3257
1857year founded
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Map of St. Mary's School
#5(°Õ5–T6)St. Mary's School
Gr: 7-9 | 82 students
Catholic
1015 Milton Rd
Alton, IL 62002
(618) 465-9719
1858year founded
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Map of Woodlands Academy Of The Sacred Heart
#5(°Õ5–T6) Woodlands Academy Of The Sacred Heart
Gr: 9-12 | 100 students
Avg. class size: 10 students
Sports: 7
All-girls (Catholic)
760 E Westleigh Rd
Lake Forest, IL 60045
(847) 234-4300
1858year founded
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Map of Marquette Academy
#7Marquette Academy
Gr: PK-12 | 353 students
Catholic
1000 Paul Street
Ottawa, IL 61350
(815) 433-0125
1859year founded
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St. Patrick High School Photo
#8St. Patrick High School
Gr: 9-12 | 1,015 students
Sports: 15 | Extracurriculars: 33
All-boys (Catholic)
5900 W Belmont Avenue
Chicago, IL 60634
(773) 282-8844
(3)
1861year founded
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Map of St. Francis Solanus School
#9St. Francis Solanus School
Gr: PK-9 | 237 students
Avg. class size: 20 students
Catholic
1720 College Avenue
Quincy, IL 62301
(217) 222-4077
(2)
1862year founded
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Map of St. Scholastica Academy
#10St. Scholastica Academy
Gr: 9-12 | 180 students
Sports: 9
All-girls (Catholic)
7416 N Ridge Blvd
Chicago, IL 60640
(773) 764-5715
1865year founded
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Map of Kiefer School
#11(°Õ11–T13)Kiefer School
Gr: 1-12 | 72 students
Special Education School
404 NE Madison
Peoria, IL 61603
(309) 687-7236
1866year founded
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Map of St. Teresa High School
#11(°Õ11–T13)St. Teresa High School
Gr: 9-12 | 227 students
Catholic
2710 N Water St
Decatur, IL 62526
(217) 875-2431
1866year founded
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School of the Art Institute of Chicago Photo
#11(°Õ11–T13)School of the Art Institute of Chicago
Gr: NS-12
Vocational/Technical School
36 S. Wabash Ave.
Chicago, IL 60603
(800) 232-7242
1866year founded
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Map of Quincy Notre Dame High School
#14Quincy Notre Dame High School
Gr: 9-12 | 428 students
Avg. class size: 19 students
Catholic
1400 S 11th St
Quincy, IL 62301
(217) 653-3964
1867year founded
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Map of Ucan Academy
#15Ucan Academy
Gr: 3-12 | 67 students
Special Education School
3110 W Grand Ave
Chicago, IL 60622
(773) 722-3097
1869year founded
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Map of St. Ignatius College Prep
#16St. Ignatius College Prep
Gr: 9-12 | 1,373 students
Catholic
1076 West Roosevelt Road
Chicago, IL 60608
(312) 421-5900
(1)
1870year founded
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Morgan Park Academy Photo
#17Morgan Park Academy
Gr: PK-12 | 475 students
Avg. class size: 17 students
Sports: 8
2153 W 111th St
Chicago, IL 60643
(773) 881-6700
1873year founded
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Map of St. Anthony High School
#18St. Anthony High School
Gr: 9-12 | 200 students
Catholic
304 E Roadway Ave
Effingham, IL 62401
(217) 342-6969
1874year founded
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Map of Center For Children To Heal And Achieve (ccha)
#19Center For Children To Heal And Achieve (ccha)
Gr: 2-12 | 46 students
Special Education School
1400 State St
Alton, IL 62002
(618) 465-3594
1879year founded
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Map of St. John The Baptist School
#20St. John The Baptist School
Gr: NS-9 | 225 students
Avg. class size: 24 students
Sports: 4 | Extracurriculars: 5
Catholic
0s259 Church St
Winfield, IL 60190
(630) 668-2625
(1)
1882year founded
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Map of Central Catholic High School
#21 Central Catholic High School
Gr: 9-12 | 295 students
Catholic
1201 Airport Rd
Bloomington, IL 61704
(309) 661-7000
1886year founded
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Map of Benet Academy
#22Benet Academy
Gr: 9-12 | 1,265 students
Avg. class size: 24 students
Catholic
2200 Maple Ave
Lisle, IL 60532
(630) 719-2782
1887year founded
View Profile
Map of The Latin School Of Chicago
#23The Latin School Of Chicago
Gr: PK-12 | 1,172 students
Sports: 17
59 W North Blvd
Chicago, IL 60610
(312) 582-6014
(2)
1888year founded
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De La Salle Institute - Institute Campus Photo
#24(°Õ24–T25) De La Salle Institute - Institute Campus
Gr: 9-12 | 699 students
Avg. class size: 22 students
Sports: 19 | Extracurriculars: 39
Catholic
3434 S Michigan Ave
Chicago, IL 60616
(312) 842-7355
1889year founded
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Map of De La Salle Institute - Lourdes Hall Campus
#24(°Õ24–T25)De La Salle Institute - Lourdes Hall Campus
Gr: 9-12 | 480 students
All-girls (Catholic)
1040 W 32nd Pl
Chicago, IL 60608
(773) 650-6800
1889year founded
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Josephinum Academy Of The Sacred Heart Photo
#26(°Õ26–T27) Josephinum Academy Of The Sacred Heart
Gr: 9-12 | 132 students
Avg. class size: 12 students
Sports: 7 | Extracurriculars: 20
All-girls (Catholic)
1501 North Oakley Boulevard
Chicago, IL 60622
(773) 276-1261
1890year founded
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St. Bede Academy Photo
#26(°Õ26–T27)St. Bede Academy
Gr: 9-12 | 282 students
Avg. class size: 18 students
Sports: 14 | Extracurriculars: 18
Catholic
24 W Us Highway 6
Peru, IL 61354
(815) 223-3140
1890year founded
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Map of St. Columba School
#28(°Õ28–T29)St. Columba School
Gr: K-9 | 165 students
Catholic
122 West Washington Street
Ottawa, IL 61350
(815) 433-0700
1893year founded
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Map of St. Francis De Sales High School
#28(°Õ28–T29)St. Francis De Sales High School
Gr: 9-12 | 141 students
Catholic
10155 S Ewing Ave
Chicago, IL 60617
(773) 731-6347
1893year founded
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Sacred Heart Griffin High School Photo
#30Sacred Heart Griffin High School
Gr: 9-12 | 499 students
Avg. class size: 24 students
Sports: 16 | Extracurriculars: 25
Catholic
1200 W Washington Street
Springfield, IL 62702
(217) 787-1595
1895year founded
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University of Chicago Laboratory Schools Photo
#31University of Chicago Laboratory Schools
Gr: PK-12 | 2,212 students
Sports: 12
1362 E 59th Street
Chicago, IL 60637
(773) 702-9450
1896year founded
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Map of Allendale School
#32(°Õ32–T34)Allendale School
Gr: 1-12 | 156 students
Special Education School
600 W Grand Ave
Lake Villa, IL 60046
(847) 245-6400
1897year founded
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Map of Allendale-linc
#32(°Õ32–T34)Allendale-linc
Gr: 6-12 | 34 students
Special Education School
1055 Lake Ave
Woodstock, IL 60098
(815) 206-5725
1897year founded
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American School Photo
#32(°Õ32–T34)American School
Gr: 6-12 | 6,319 students
Alternative School
2200 E 170th St
Lansing, IL 60438
(708) 418-2800
1897year founded
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Map of Mount Carmel High School
#35Mount Carmel High School
Gr: 9-12 | 618 students
Sports: 18 | Extracurriculars: 13
All-boys (Catholic)
6410 S. Dante Ave
Chicago, IL 60637
(773) 324-1020
(2)
1900year founded
View Profile
Show 100 more private schools in Illinois (out of 272 total schools)
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Frequently Asked Questions

What is the Illinois average private high schools founding year?
The Illinois average private high schools founding year is 1961 for 2026-27.
What are the private high schools with oldest founding year in Illinois?
The top ranked private high schools in Illinois include Mother Mcauley Liberal Arts High School, Chaddock and Wheaton Academy.

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