Oldest Private High Schools in Illinois

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(675)
All Schools
(675)
 
High Schools
(155)
High Schools
(155)
 
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(413)
Elementary Schools
(413)
 
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(560)
Preschools
(560)
 
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 School
    Special Program Emphasis
    Founding Date: 1816
    Grades: PK-121 Jacoby Pl
    Rockford, IL 61107
    (815) 399-8823

  • Rank: #22.
    Elgin Academy
    Elgin Academy Photo - "Old Main" building of Elgin Academy Old Main is the academy's original building. Today, it is primarily used as the museum for the Elgin Area Historical Society. One room still serves as a regular school classroom for the school.
    Founding Date: 1839
    Grades: NS-12350 Park St
    Elgin, IL 60120
    (847) 695-0303

  • Rank: #33.
    Mother Mcauley Liberal Arts High School
    Mother Mcauley Liberal Arts High School Photo
    All-girls (Roman Catholic)
    Founding Date: 1846
    Grades: 9-123737 W 99th Street
    Chicago, IL 60655
    (773) 881-6500

  • Rank: #44.
    Wheaton Academy
    Wheaton Academy Photo
    Alternative School (Christian)
    Founding Date: 1853
    Grades: 9-12900 Prince Crossing Rd
    West Chicago, IL 60185
    (630) 562-7500

  • Rank: #55.
    St. Scholastica Academy
    All-girls (Roman Catholic)
    Founding Date: 1865
    Grades: 9-127416 N Ridge Blvd
    Chicago, IL 60640
    (773) 764-5715

  • Rank: #66.
    Morgan Park Academy
    Morgan Park Academy Photo
    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.
    De La Salle Institute - Institute Campus
    De La Salle Institute - Institute Campus Photo - De La Salle Institute
    (Roman Catholic)
    Founding Date: 1889
    Grades: 9-123434 S Michigan Ave
    Chicago, IL 60616
    (312) 842-7355

  • Rank: #9-109.- 10.
    Josephinum Academy Of The Sacred Heart
    Josephinum Academy Of The Sacred Heart Photo - Library
    All-girls (Roman Catholic)
    Founding Date: 1890
    Grades: 9-121501 North Oakley Boulevard
    Chicago, IL 60622
    (773) 276-1261

  • Rank: #9-109.- 10.
    St. Bede Academy
    St. Bede Academy Photo
    (Roman Catholic)
    Founding Date: 1890
    Grades: 9-1224 W Us Highway 6
    Peru, IL 61354
    (815) 223-3140

  • Rank: #1111.
    Sacred Heart Griffin High School
    Sacred Heart Griffin High School Photo
    (Roman Catholic)
    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.
    American School
    American School Photo
    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.
    Holy Trinity High School
    Holy Trinity High School Photo
    (Roman Catholic)
    Founding Date: 1910
    Grades: 9-121443 W Division Street
    Chicago, IL 60642
    (773) 278-4212

  • Rank: #18-1918.- 19.
    Maria High School
    Maria High School Photo
    All-girls (Roman Catholic)
    Founding Date: 1911
    Grades: 9-126727 S California Ave
    Chicago, IL 60629
    (773) 925-8686

  • Rank: #18-1918.- 19.
    Timothy Christian High School
    Timothy Christian High School Photo
    (Christian)
    Founding Date: 1911
    Grades: PK-121061 S Prospect Ave
    Elmhurst, IL 60126
    (630) 833-4616

  • Rank: #2020.
    Sonia Shankman Orthogenic School
    Special Education School
    Founding Date: 1912
    Grades: 4-126245 S. Ingleside Avenue
    Chicago, IL 60637
    (773) 420-2900

  • Rank: #21-2221.- 22.
    Hinsdale Adventist Academy
    Hinsdale Adventist Academy Photo
    (Seventh Day Adventist)
    Founding Date: 1914
    Grades: PK-12631 E Hickory St
    Hinsdale, IL 60521
    (630) 323-9211

  • Rank: #21-2221.- 22.
    Kemmerer Village School
    Special 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.
    Roycemore School
    Roycemore School Photo
    Founding Date: 1915
    Grades: PK-121200 Davis Street
    Evanston, IL 60201
    (847) 866-6055

  • Rank: #2525.
    Providence Catholic High School
    Providence Catholic High School Photo
    (Roman Catholic)
    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.
    Resurrection College Prep High School
    Resurrection College Prep High School Photo
    All-girls (Roman Catholic)
    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 School
    Special Education School
    Founding Date: 1947
    Grades: K-12350 Lee Road
    Northbrook, IL 60062
    (847) 562-2100

  • Rank: #3434.
    Peoria Christian School
    Peoria Christian School Photo - Distinctively Christian. Decidedly Academic.
    (Christian)
    Founding Date: 1950
    Grades: NS-123506 N California Avenue
    Peoria, IL 61603
    (309) 686-4500

  • Rank: #3535.
    Depaul College Prep
    Depaul College Prep Photo - GT students getting into the spirit of Homecoming!
    (Roman Catholic)
    Founding Date: 1952
    Grades: 9-123633 N California Ave
    Chicago, IL 60618
    (773) 539-3600

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