The average private high school in Colorado was founded around 1977 (2025).
The oldest private high school in Colorado is St. Mary's Academy, founded in 1864.
Year Founded Range: 1864
1981
Avg. Year Founded: 1948
Oldest Private High Schools in Colorado (2025)
School
Founding Date
Grades
Location
Rank: #11.
Founding Date: 1864
Grades: NS-12
4545 South University Boulevard
Englewood, CO 80113
(303) 762-8300
Englewood, CO 80113
(303) 762-8300
Rank: #22.
Founding Date: 1877
Grades: 9-12
6380 S Lewiston Way
Aurora, CO 80016
(303) 269-8000
Aurora, CO 80016
(303) 269-8000
Rank: #33.
Founding Date: 1885
Grades: 9-12
2501 E Yampa St
Colorado Springs, CO 80909
(719) 635-7540
Colorado Springs, CO 80909
(719) 635-7540
Rank: #44.
Founding Date: 1906
Grades: PK-12
3800 S Pierce St
Denver, CO 80235
(303) 914-2513
Denver, CO 80235
(303) 914-2513
Rank: #55.
Campion Academy![Campion Academy Photo - Center campus Campion Academy Photo - Center campus]()

(Seventh Day Adventist)
Founding Date: 1907
Grades: 9-12
300 42nd St SW
Loveland, CO 80537
(970) 667-5592
Loveland, CO 80537
(970) 667-5592
Rank: #66.
Founding Date: 1913
Grades: PK-12
1733 Dad Clark Drive
Littleton, CO 80126
(303) 744-1069
Littleton, CO 80126
(303) 744-1069
Rank: #7 - 87. - 8.
Brighton Adventist Academy![Brighton Adventist Academy Photo - BAA Sports League: Sports included are soccer, basketball and flag football. 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
Brighton, CO 80601
(303) 659-1223
Rank: #7 - 87. - 8.
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. 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.]()

(Calvinist)
Founding Date: 1916
Grades: K-12
3898 S. Teller St.
Denver, CO 80235
(303) 733-2421
Denver, CO 80235
(303) 733-2421
Rank: #99.
Founding Date: 1920
Grades: NS-12
3455 W 83rd Ave
Westminster, CO 80031
(303) 427-5459
Westminster, CO 80031
(303) 427-5459
Rank: #10 - 1110. - 11.
Holy Family High School
(Catholic)
Founding Date: 1922
Grades: 9-12
5195 W 144th Ave
Broomfield, CO 80023
(303) 410-1411
Broomfield, CO 80023
(303) 410-1411
Rank: #10 - 1110. - 11.
Founding Date: 1922
Grades: 6-12
4000 East Quincy Avenue
Englewood, CO 80113
(303) 770-7660
Englewood, CO 80113
(303) 770-7660
Rank: #1212.
Founding Date: 1930
Grades: 9-12
6155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251
Colorado Springs, CO 80911
(719) 391-5251
Rank: #1313.
Founding Date: 1931
Grades: 9-12
3601 S Lowell Blvd
Denver, CO 80236
(303) 716-1764
Denver, CO 80236
(303) 716-1764
Rank: #1414.
Founding Date: 1953
Grades: 9-12
500 Holden Way
Carbondale, CO 81623
(970) 963-2562
Carbondale, CO 81623
(970) 963-2562
Rank: #1515.
Founding Date: 1955
Grades: 9-12
11249 N Newlin Gulch Blvd
Parker, CO 80134
(303) 841-5551
Parker, CO 80134
(303) 841-5551
Rank: #1616.
Founding Date: 1958
Grades: 9-12
458 Uinta Way
Denver, CO 80230
(303) 344-0082
Denver, CO 80230
(303) 344-0082
Rank: #17 - 1817. - 18.
Founding Date: 1962
Grades: PK-12
21 Broadmoor Ave
Colorado Springs, CO 80906
(719) 434-3500
Colorado Springs, CO 80906
(719) 434-3500
Rank: #17 - 1817. - 18.
Founding Date: 1962
Grades: K-12
3000 Booth Falls Road
Vail, CO 81657
(970) 476-3850
Vail, CO 81657
(970) 476-3850
Rank: #1919.
Founding Date: 1970
Grades: K-12
10455 Dawson Drive
Lafayette, CO 80026
(303) 665-6679
Lafayette, CO 80026
(303) 665-6679
Rank: #2020.
Founding Date: 1971
Grades: K-12
4855 Mallow Rd
Colorado Springs, CO 80907
(719) 599-3553
Colorado Springs, CO 80907
(719) 599-3553
Rank: #21 - 2221. - 22.
Denver Academy![Denver Academy Photo - Visual Arts Denver Academy Photo - Visual Arts]()

Special Education School
Founding Date: 1972
Grades: 2-12
4400 E Iliff Avenue
Denver, CO 80222
(303) 777-5161
Denver, CO 80222
(303) 777-5161
Rank: #21 - 2221. - 22.
Faith Christian High School
(Christian)
Founding Date: 1972
Grades: K-12
Administration Offices 12189 W 64th Ave
Arvada, CO 80004
(303) 424-7310
Arvada, CO 80004
(303) 424-7310
Rank: #23 - 2423. - 24.
Founding Date: 1973
Grades: PK-12
13100 East 144th Avenue
Brighton, CO 80601
(303) 659-3818
Brighton, CO 80601
(303) 659-3818
Rank: #23 - 2423. - 24.
Founding Date: 1973
Grades: 9-12
96 Arapahoe Ave.
Boulder, CO 80302
(303) 443-9933
Boulder, CO 80302
(303) 443-9933
Rank: #25 - 2625. - 26.
Founding Date: 1974
Grades: PK-12
2100 S. Pennsylvania St.
Denver, CO 80210
(303) 777-0531
Denver, CO 80210
(303) 777-0531
Rank: #25 - 2625. - 26.
Parkhill Christian Academy
(Baptist)
Founding Date: 1974
Grades: PK-9
4235 Parkhill Pl
Pueblo, CO 81008
(719) 544-6174
Pueblo, CO 81008
(719) 544-6174
Rank: #27 - 2827. - 28.
Founding Date: 1975
Grades: 9-12
454 Academy Drive
Durango, CO 81301
(970) 247-5898
Durango, CO 81301
(970) 247-5898
Rank: #27 - 2827. - 28.
Founding Date: 1975
Grades: PK-12
2450 S Wabash St
Denver, CO 80231
(303) 369-0663
Denver, CO 80231
(303) 369-0663
Rank: #29 - 3229. - 32.
Founding Date: 1977
Grades: 5-12
2160 South Cook Street
Denver, CO 80210
(303) 758-2003
Denver, CO 80210
(303) 758-2003
Rank: #29 - 3229. - 32.
Immanuel Lutheran School![Immanuel Lutheran School Photo - The mission of Immanuel Lutheran Church and School (ILCS) is to transform lives by loving, learning and living in Jesus. We reveal the love and grace of Jesus to our community by our radical hospitality, transformational learning and fearless living. Immanuel Lutheran School Photo - The mission of Immanuel Lutheran Church and School (ILCS) is to transform lives by loving, learning and living in Jesus. We reveal the love and grace of Jesus to our community by our radical hospitality, transformational learning and fearless living.]()

Special Program Emphasis (Lutheran Church Missouri Synod)
Founding Date: 1977
Grades: NS-12
4650 Sunview Drive
Loveland, CO 80538
(970) 667-7606
Loveland, CO 80538
(970) 667-7606
Rank: #29 - 3229. - 32.
Founding Date: 1977
Grades: PK-9
7701 E 1st Pl, Unit C
Denver, CO 80230
(303) 340-3647
Denver, CO 80230
(303) 340-3647
Rank: #29 - 3229. - 32.
Springs Baptist Academy![Springs Baptist Academy Photo - SBA students enjoy a visit from Colorado Springs Fire Department Springs Baptist Academy Photo - SBA students enjoy a visit from Colorado Springs Fire Department]()

(Baptist)
Founding Date: 1977
Grades: PK-12
3500 N. Nevada Ave.
Colorado Springs, CO 80907
(719) 593-7887
Colorado Springs, CO 80907
(719) 593-7887
Rank: #3333.
Founding Date: 1979
Grades: K-12
1415 Elm Avenue
Canon City, CO 81212
(719) 275-5349
Canon City, CO 81212
(719) 275-5349
Rank: #34 - 3534. - 35.
Colorado West Christian School
(Christian)
Founding Date: 1981
Grades: PK-12
2705 Sunnyside Rd
Montrose, CO 81401
(970) 249-1094
Montrose, CO 81401
(970) 249-1094
Rank: #34 - 3534. - 35.
Founding Date: 1981
Grades: NS-12
5905 Flintridge Dr
Colorado Springs, CO 80918
(719) 598-8610
Colorado Springs, CO 80918
(719) 598-8610
Show 44 more private schools in CO (out of 79 total schools)
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Frequently Asked Questions
What is the Colorado average private high schools founding year?
The Colorado average private high schools founding year is 1977 for 2025.
What are the private high schools with oldest founding year in Colorado?
The top ranked private high schools in Colorado include St. Mary's Academy, Regis Jesuit High School and St. Mary's High School.
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