Oldest Private High Schools in Colorado
The average private high school in Colorado was founded around 1973 (2021).
The oldest private high school in Colorado is St. Mary's Academy, founded in 1864.
The oldest private high schools are listed below (where sufficient data available).
Oldest Private High Schools in Colorado (2021)
- School Founding Date Grades Location
- Rank: #1-21.-2. Founding Date: 1864
Grades: PK-124545 S University Blvd
Englewood, CO 80113
(303) 762-8300 - Rank: #1-21.-2. Founding Date: 1864
Grades: PK-124545 South University Boulevard
Englewood, CO 80113
(303) 762-8300 - Rank: #33. Founding Date: 1877
Grades: 9-126400 S Lewiston Way
Aurora, CO 80016
(303) 269-8000 -
- Rank: #44. Founding Date: 1885
Grades: 9-122501 E Yampa St
Colorado Springs, CO 80909
(719) 635-7540 - Rank: #55. Founding Date: 1906
Grades: PK-123800 S Pierce St
Denver, CO 80235
(303) 914-2513 - Rank: #66. Founding Date: 1907
Grades: 9-12300 42nd St SW
Loveland, CO 80537
(970) 667-5592 - Rank: #77. Founding Date: 1913
Grades: PK-121733 Dad Clark Drive
Littleton, CO 80126
(303) 744-1069 - Rank: #8-98.-9. Founding Date: 1916
Grades: PK-10820 S 5th Ave
Brighton, CO 80601
(303) 659-1223 - Rank: #8-98.-9. Founding Date: 1916
Grades: PK-123898 S. Teller St.
Denver, CO 80235
(303) 733-2421 - Rank: #1010. Founding Date: 1920
Grades: NS-123455 W 83rd Ave
Westminster, CO 80031
(303) 427-5459 - Rank: #11-1211.- 12.Holy Family High School(Roman Catholic)Founding Date: 1922
Grades: 9-125195 W 144th Ave
Broomfield, CO 80023
(303) 410-1411 - Rank: #11-1211.- 12. Founding Date: 1922
Grades: 6-124000 East Quincy Avenue
Englewood, CO 80113
(303) 770-7660 - Rank: #1313. Founding Date: 1930
Grades: 9-126155 Fountain Valley School Road
Colorado Springs, CO 80911
(719) 391-5251 - Rank: #1414.Mullen High School(Roman Catholic)Founding Date: 1931
Grades: 9-123601 S Lowell Blvd
Denver, CO 80236
(303) 761-1764 - Rank: #1515. Founding Date: 1953
Grades: 9-12500 Holden Way
Carbondale, CO 81623
(970) 963-2562 - Rank: #1616. Founding Date: 1955
Grades: 9-1211249 N Newlin Gulch Blvd
Parker, CO 80134
(303) 841-5551 - Rank: #1717. Founding Date: 1957
Grades: 9-1242605 County Road 36
Steamboat Springs, CO 80487
(970) 879-1350 - Rank: #1818.Bishop Machebeuf High School(Roman Catholic)Founding Date: 1958
Grades: 9-12458 Uinta Way
Denver, CO 80230
(303) 344-0082 - Rank: #19-2019.- 20. Founding Date: 1962
Grades: PK-1221 Broadmoor Ave
Colorado Springs, CO 80906
(719) 475-9747 - Rank: #19-2019.- 20. Founding Date: 1962
Grades: K-123000 Booth Falls Road
Vail, CO 81657
(970) 476-3850 - Rank: #2121. Founding Date: 1970
Grades: K-1210455 Dawson Drive
Lafayette, CO 80026
(303) 665-6679 - Rank: #22-2322.- 23.Colorado Springs Christian Schools(Christian)Founding Date: 1971
Grades: NS-124855 Mallow Rd
Colorado Springs, CO 80907
(719) 599-3553 - Rank: #22-2322.- 23. Founding Date: 1971
Grades: 9-12910 Galapago St
Denver, CO 80204
(303) 629-0637 - Rank: #24-2524.- 25. Founding Date: 1972
Grades: 1-124400 E Iliff Avenue
Denver, CO 80222
(303) 777-5161 - Rank: #24-2524.- 25. Founding Date: 1972
Grades: NS-124890 Carr Street
Arvada, CO 80002
(303) 424-7310 - Rank: #26-2726.- 27. Founding Date: 1973
Grades: PK-1213100 East 144th Avenue
Brighton, CO 80601
(303) 659-3818 - Rank: #26-2726.- 27.September SchoolAlternative SchoolFounding Date: 1973
Grades: 9-1296 Arapahoe Ave
Boulder, CO 80302
(303) 443-9933 - Rank: #28-2928.- 29. Founding Date: 1974
Grades: PK-122100 S. Pennsylvania St.
Denver, CO 80210
(303) 777-0531 - Rank: #28-2928.- 29.Parkhill Christian Academy(Baptist)Founding Date: 1974
Grades: K-104235 Parkhill Pl
Pueblo, CO 81008
(719) 544-6174 - Rank: #30-3130.- 31. Founding Date: 1975
Grades: 9-12454 Academy Drive
Durango, CO 81301
(970) 247-5898 - Rank: #30-3130.- 31. Founding Date: 1975
Grades: NS-122450 S Wabash St
Denver, CO 80231
(303) 369-0663 - Rank: #3232. Founding Date: 1977
Grades: 5-122160 South Cook Street
Denver, CO 80210
(303) 758-2003 - Rank: #3333.Calvary Christian School(Baptist)Founding Date: 1979
Grades: K-121415 Elm Avenue
Canon City, CO 81212
(719) 275-5349 - Rank: #34-3534.- 35.Change Christian Academy(Assembly of God)Founding Date: 1982
Grades: PK-1212505 Elmendorf Place
Denver, CO 80239
(303) 373-5200 - Rank: #34-3534.- 35. Founding Date: 1982
Grades: 4-122051 Terry Street, Suite A
Longmont, CO 80501
(303) 678-9335
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