Oldest Private High Schools in Colorado

The average private high school in Colorado was founded around 1973 (2021-22).
The oldest private high school in Colorado is St. Mary's Academy, founded in 1864.

Oldest Private High Schools in Colorado (2021-22)

School
Founding Date
Grades
Location
Rank: #1 - 21. - 2.
St. Mary's Academy
St. Mary's Academy Photo - St. Mary's Academy High School excels at preparing young women for leadership in a global society. Our goal is to empower our students through the development of analytical skills, confidence, and generosity to make a difference in the world around them.
(Roman Catholic)
Founding Date: 1864
Grades: PK-12
4545 South University Boulevard
Englewood, CO 80113
(303) 762-8300
Rank: #1 - 21. - 2.
St. Mary's Academy
St. Mary's Academy Photo
(Roman Catholic)
(12)
Founding Date: 1864
Grades: PK-12
4545 S University Blvd
Englewood, CO 80113
(303) 762-8300
Rank: #33.
Regis Jesuit High School
Regis Jesuit High School Photo
(Roman Catholic)
Founding Date: 1877
Grades: 9-12
6400 S Lewiston Way
Aurora, CO 80016
(303) 269-8000
Rank: #44.
St. Mary's High School
St. Mary's High School Photo - Mens' Athletics
(Roman Catholic)
(4)
Founding Date: 1885
Grades: 9-12
2501 E Yampa St
Colorado Springs, CO 80909
(719) 635-7540
Rank: #55.
Colorado Academy
Colorado Academy Photo - Colorado Academy starts with Pre-Kindergartners and graduates seniors who have become curious, kind, courageous, and adventurous learners and leaders--ready to make an impact in the communities where they choose to land.
Founding Date: 1906
Grades: PK-12
3800 S Pierce St
Denver, CO 80235
(303) 914-2513
Rank: #66.
Campion Academy
Campion Academy Photo - Sign at entrance to campus.
(Seventh Day Adventist)
Founding Date: 1907
Grades: 9-12
300 42nd St SW
Loveland, CO 80537
(970) 667-5592
Rank: #77.
Mile High Academy
Mile High Academy Photo - Art Education
(Seventh Day Adventist)
(3)
Founding Date: 1913
Grades: PK-12
1733 Dad Clark Drive
Littleton, CO 80126
(303) 744-1069
Rank: #8 - 98. - 9.
Brighton Adventist Academy
Brighton Adventist Academy Photo - BAA Sports League: Sports included are soccer, basketball and flag football.
(Seventh Day Adventist)
Founding Date: 1916
Grades: PK-10
820 S 5th Ave
Brighton, CO 80601
(303) 659-1223
Rank: #8 - 98. - 9.
Denver Christian School
Denver Christian School Photo - Every day is an open house at Denver Christian School.We look forward to providing a personal tour to share what DCS has to offer your students & family.Please join us this summer, starting June 9 on Sundays 2-4 pm and Wednesdays 6-8 pm, to preview our school and learn more about Denver Christian School.
(Christian)
Founding Date: 1916
Grades: PK-12
3898 S. Teller St.
Denver, CO 80235
(303) 733-2421
Rank: #1010.
Belleview Christian School
Belleview Christian School Photo - As a college preparatory school, our standards at Belleview Christian School are high. Specials include Art, Music, PE, Chapel, Spanish, Computer, and Accelerated Reader.
(Christian)
(4)
Founding Date: 1920
Grades: NS-12
3455 W 83rd Ave
Westminster, CO 80031
(303) 427-5459
Rank: #11 - 1211. - 12.
Holy Family High School
(Roman Catholic)
Founding Date: 1922
Grades: 9-12
5195 W 144th Ave
Broomfield, CO 80023
(303) 410-1411
Rank: #11 - 1211. - 12.
Kent Denver School
Kent Denver School Photo
Founding Date: 1922
Grades: 6-12
4000 East Quincy Avenue
Englewood, CO 80113
(303) 770-7660
Rank: #1313.
Fountain Valley School Of Colorado
Fountain Valley School Of Colorado Photo - Our Art Barn includes equipment and facilities for photography, studio art, metal-smithing and ceramics.
Special Program Emphasis
Founding Date: 1930
Grades: 9-12
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
Rank: #1414.
Mullen High School
(Roman Catholic)
(1)
Founding Date: 1931
Grades: 9-12
3601 S Lowell Blvd
Denver, CO 80236
(303) 761-1764
Rank: #1515.
Founding Date: 1953
Grades: 9-12
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
Rank: #1616.
Lutheran High School
Lutheran High School Photo - Lutheran High School - Encouraging academic excellence, Nurturing growth in Christ.
(Lutheran Church Missouri Synod)
(3)
Founding Date: 1955
Grades: 9-12
11249 N Newlin Gulch Blvd
Parker, CO 80134
(303) 841-5551
Rank: #1717.
Steamboat Mountain School
Steamboat Mountain School Photo - Get outdoors on the weekends, mountain biking, ice climbing, or backcountry skiing. You can try it for the first time!
(6)
Founding Date: 1957
Grades: 9-12
42605 County Road 36
Steamboat Springs, CO 80487
(970) 879-1350
Rank: #1818.
Bishop Machebeuf High School
(Roman Catholic)
(1)
Founding Date: 1958
Grades: 9-12
458 Uinta Way
Denver, CO 80230
(303) 344-0082
Rank: #19 - 2019. - 20.
The Colorado Springs School
The Colorado Springs School Photo - The Colorado Springs School is PreK-12 college-preparatory day and international school nestled in the heart of Broadmoor.
(1)
Founding Date: 1962
Grades: PK-12
21 Broadmoor Ave
Colorado Springs, CO 80906
(719) 434-3520
Rank: #19 - 2019. - 20.
Vail Mountain School
Vail Mountain School Photo
(5)
Founding Date: 1962
Grades: K-12
3000 Booth Falls Road
Vail, CO 81657
(970) 476-3850
Rank: #2121.
Dawson School
Dawson School Photo - Each fall, the entire high school participates in class trips to many locations around the state. Students learn camping skills, rafting, leadership, team building and participate in community service.
(7)
Founding Date: 1970
Grades: K-12
10455 Dawson Drive
Lafayette, CO 80026
(303) 665-6679
Rank: #22 - 2322. - 23.
Colorado Springs Christian Schools
(Christian)
(1)
Founding Date: 1971
Grades: K-12
4855 Mallow Rd
Colorado Springs, CO 80907
(719) 599-3553
Rank: #22 - 2322. - 23.
Founding Date: 1971
Grades: 9-12
910 Galapago St
Denver, CO 80204
(303) 629-0637
Rank: #24 - 2524. - 25.
Denver Academy
Denver Academy Photo - Elementary School
Special Program Emphasis
Founding Date: 1972
Grades: 1-12
4400 E Iliff Avenue
Denver, CO 80222
(303) 777-5161
Rank: #24 - 2524. - 25.
Faith Christian Academy - High School
Faith Christian Academy - High School Photo
(Christian)
(1)
Founding Date: 1972
Grades: NS-12
4890 Carr Street
Arvada, CO 80002
(303) 424-7310
Rank: #26 - 2726. - 27.
Elmwood Baptist Academy
Elmwood Baptist Academy Photo - A picture of the entire school.
(Baptist)
(7)
Founding Date: 1973
Grades: PK-12
13100 East 144th Avenue
Brighton, CO 80601
(303) 659-3818
Rank: #26 - 2726. - 27.
September School
Alternative School
Founding Date: 1973
Grades: 9-12
96 Arapahoe Ave
Boulder, CO 80302
(303) 443-9933
Rank: #28 - 2928. - 29.
Denver Waldorf School
Denver Waldorf School Photo - The Denver Waldorf School
Special Program Emphasis
(6)
Founding Date: 1974
Grades: PK-12
2100 S. Pennsylvania St.
Denver, CO 80210
(303) 777-0531
Rank: #28 - 2928. - 29.
Parkhill Christian Academy
(Baptist)
Founding Date: 1974
Grades: K-10
4235 Parkhill Pl
Pueblo, CO 81008
(719) 544-6174
Rank: #30 - 3130. - 31.
Colorado Timberline Academy
Colorado Timberline Academy Photo
(1)
Founding Date: 1975
Grades: 9-12
454 Academy Drive
Durango, CO 81301
(970) 247-5898
Rank: #30 - 3130. - 31.
Denver Jewish Day School
Denver Jewish Day School Photo - 10th graders in the Negev desert region of Israel on their annual six week Hebrew and Israel immersion experience.
(Jewish)
Founding Date: 1975
Grades: NS-12
2450 S Wabash St
Denver, CO 80231
(303) 369-0663
Rank: #3232.
Accelerated Schools
Accelerated Schools Photo - snowboarding
Special Program Emphasis
(1)
Founding Date: 1977
Grades: 5-12
2160 South Cook Street
Denver, CO 80210
(303) 758-2003
Rank: #3333.
Calvary Christian School
(Baptist)
(1)
Founding Date: 1979
Grades: K-12
1415 Elm Avenue
Canon City, CO 81212
(719) 275-5349
Rank: #34 - 3534. - 35.
Change Christian Academy
(Assembly of God)
Founding Date: 1982
Grades: PK-12
12505 Elmendorf Place
Denver, CO 80239
(303) 373-5200
Rank: #34 - 3534. - 35.
Desiderata School
Desiderata School Photo - Students may complete independent study assignments with adult instructor supervision and assistance in a number of different facilities. These students are working at the Tutoring Club of Longmont during the 2010-2011 school year.
Alternative School
Founding Date: 1982
Grades: 4-12
2051 Terry Street, Suite A
Longmont, CO 80501
(303) 678-9335
Show 39 more private schools in CO (out of 74 total schools)
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