Oldest Private High Schools in Illinois
The average private high school in Illinois was founded around 1967 (2021).
The oldest private high school in Illinois is Keith Country Day School, founded in 1816.
The oldest private high schools are listed below (where sufficient data available).
Oldest Private High Schools in Illinois (2021)
- School Founding Date Grades Location
- Rank: #11.Keith Country Day SchoolSpecial Program EmphasisFounding Date: 1816
Grades: PK-121 Jacoby Pl
Rockford, IL 61107
(815) 399-8823 - Rank: #22. Founding Date: 1839
Grades: NS-12350 Park St
Elgin, IL 60120
(847) 695-0303 - Rank: #33. Founding Date: 1846
Grades: 9-123737 W 99th Street
Chicago, IL 60655
(773) 881-6500 -
- Rank: #44. Founding Date: 1853
Grades: 9-12900 Prince Crossing Rd
West Chicago, IL 60185
(630) 562-7500 - Rank: #55.St. Scholastica AcademyAll-girls (Roman Catholic)Founding Date: 1865
Grades: 9-127416 N Ridge Blvd
Chicago, IL 60640
(773) 764-5715 - Rank: #66. Founding Date: 1873
Grades: PK-122153 W 111th St
Chicago, IL 60643
(773) 881-6700 - Rank: #77. Founding Date: 1888
Grades: PK-1259 W North Blvd
Chicago, IL 60610
(312) 582-6000 - Rank: #88. Founding Date: 1889
Grades: 9-123434 S Michigan Ave
Chicago, IL 60616
(312) 842-7355 - Rank: #9-109.- 10. Founding Date: 1890
Grades: 9-121501 North Oakley Boulevard
Chicago, IL 60622
(773) 276-1261 - Rank: #9-109.- 10. Founding Date: 1890
Grades: 9-1224 W Us Highway 6
Peru, IL 61354
(815) 223-3140 - Rank: #1111. Founding Date: 1895
Grades: 9-121200 W Washington Street
Springfield, IL 62702
(217) 787-1595 - Rank: #1212. Founding Date: 1896
Grades: PK-121362 E 59th Street
Chicago, IL 60637
(773) 834-1638 - Rank: #1313. Founding Date: 1897
Grades: 6-122200 E 170th St
Lansing, IL 60438
(708) 418-2800 - Rank: #1414.Nazareth Academy(Roman Catholic)Founding Date: 1900
Grades: 9-121209 West Ogden Avenue
La Grange Park, IL 60526
(708) 354-0061 - Rank: #1515.Routt Catholic High School(Roman Catholic)Founding Date: 1902
Grades: 9-12500 E College Ave
Jacksonville, IL 62650
(217) 243-8563 - Rank: #1616.Loyola Academy(Roman Catholic)Founding Date: 1909
Grades: 9-121100 Laramie Ave
Wilmette, IL 60091
(847) 256-1100 - Rank: #1717. Founding Date: 1910
Grades: 9-121443 W Division Street
Chicago, IL 60642
(773) 278-4212 - Rank: #18-1918.- 19. Founding Date: 1911
Grades: 9-126727 S California Ave
Chicago, IL 60629
(773) 925-8686 - Rank: #18-1918.- 19. Founding Date: 1911
Grades: PK-121061 S Prospect Ave
Elmhurst, IL 60126
(630) 833-4616 - Rank: #2020.Sonia Shankman Orthogenic SchoolSpecial Education SchoolFounding Date: 1912
Grades: 4-126245 S. Ingleside Avenue
Chicago, IL 60637
(773) 420-2900 - Rank: #21-2221.- 22. Founding Date: 1914
Grades: PK-12631 E Hickory St
Hinsdale, IL 60521
(630) 323-9211 - Rank: #21-2221.- 22.Kemmerer Village SchoolSpecial Education School (African Methodist Episcopal)Founding Date: 1914
Grades: 7-12941 N 2500 East Rd
Assumption, IL 62510
(217) 226-2139 - Rank: #23-2423.- 24.Newman Central Catholic High School(Roman Catholic)Founding Date: 1915
Grades: 9-121101 W 23rd St
Sterling, IL 61081
(815) 625-0500 - Rank: #23-2423.- 24. Founding Date: 1915
Grades: PK-121200 Davis Street
Evanston, IL 60201
(847) 866-6055 - Rank: #2525. Founding Date: 1918
Grades: 9-121800 W Lincoln Hwy
New Lenox, IL 60451
(815) 485-2136 - Rank: #2626. Founding Date: 1919
Grades: PK-12310 Green Bay Rd
Winnetka, IL 60093
(847) 446-0674 - Rank: #2727. Founding Date: 1922
Grades: 9-127500 W Talcott Ave
Chicago, IL 60631
(773) 775-6616 - Rank: #2828.Alpine Christian School(Seventh Day Adventist)Founding Date: 1923
Grades: K-9325 North Alpine Road
Rockford, IL 61107
(815) 399-0880 - Rank: #2929.Marquette Catholic High School(Roman Catholic)Founding Date: 1927
Grades: 9-12219 E 4th St
Alton, IL 62002
(618) 463-0580 - Rank: #3030.Fenwick High School(Roman Catholic)Founding Date: 1929
Grades: 9-12505 Washington Blvd
Oak Park, IL 60302
(708) 386-0127 - Rank: #3131.Illiana Christian High School(Calvinist)Founding Date: 1945
Grades: 9-122261 Indiana Ave
Lansing, IL 60438
(708) 474-0515 - Rank: #32-3332.- 33.Arthur Christian School(Christian)Founding Date: 1947
Grades: PK-121637 State Hwy 133
Arthur, IL 61911
(217) 543-2397 - Rank: #32-3332.- 33.Cove SchoolSpecial Education SchoolFounding Date: 1947
Grades: K-12350 Lee Road
Northbrook, IL 60062
(847) 562-2100 - Rank: #3434. Founding Date: 1950
Grades: NS-123506 N California Avenue
Peoria, IL 61603
(309) 686-4500 - Rank: #3535. Founding Date: 1952
Grades: 9-123633 N California Ave
Chicago, IL 60618
(773) 539-3600
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