The average private school in Wyoming was founded around 1968 (2025-26).
The oldest private school in Wyoming is St. Mary's Catholic School, founded in 1884.
Year Founded Range: 1884
2011
Avg. Year Founded: 1968
Oldest Private Schools in Wyoming (2025-26)
School
Founding Date
Grades
Location
Rank: #11.
Founding Date: 1884
Grades: PK-6
2200 Oneil Ave
Cheyenne, WY 82001
(307) 638-9268
Cheyenne, WY 82001
(307) 638-9268
Rank: #22.
Founding Date: 1892
Grades: PK-8
1111 E 22nd St
Cheyenne, WY 82001
(307) 635-2802
Cheyenne, WY 82001
(307) 635-2802
Rank: #33.
Colter High School
All-boys | Alternative School
Founding Date: 1905
Grades: 8-12
1550 Us Highway 20 S
Worland, WY 82401
(307) 347-6144
Worland, WY 82401
(307) 347-6144
Rank: #44.
Holy Name Catholic School
Special Program Emphasis (Catholic)
Founding Date: 1914
Grades: PK-5
121 S Connor St
Sheridan, WY 82801
(307) 672-2021
Sheridan, WY 82801
(307) 672-2021
Rank: #55.
Founding Date: 1927
Grades: PK-8
1145 W. 20th St.
Casper, WY 82604
(307) 234-2873
Casper, WY 82604
(307) 234-2873
Rank: #66.
Mountain Road Christian Academy![Mountain Road Christian Academy Photo]( "Mountain Road Christian Academy Photo")
(Seventh Day Adventist)
Founding Date: 1930
Grades: K-7
2657 Casper Mountain Rd
Casper, WY 82601
(307) 235-2859
Casper, WY 82601
(307) 235-2859
Rank: #77.
Holy Spirit Catholic School![Holy Spirit Catholic School Photo]( "Holy Spirit Catholic School Photo")
(Catholic)
Founding Date: 1951
Grades: PK-6
210 A St
Rock Springs, WY 82901
(307) 362-6077
Rock Springs, WY 82901
(307) 362-6077
Rank: #88.
Founding Date: 1952
Grades: 1-6
723 Storey Blvd
Cheyenne, WY 82009
(307) 638-2457
Cheyenne, WY 82009
(307) 638-2457
Rank: #99.
SonShine Academy
(Seventh Day Adventist)
Founding Date: 1969
Grades: NS-8
660 S 17th St
Worland, WY 82401
(307) 347-7858
Worland, WY 82401
(307) 347-7858
Rank: #1010.
Open School
Daycare / Preschool
Founding Date: 1971
Grades: PK-K
414 S 24th St
Laramie, WY 82070
(307) 745-7256
Laramie, WY 82070
(307) 745-7256
Rank: #1111.
Founding Date: 1975
Grades: PK-K
417 S Elm St.
Casper, WY 82601
(307) 265-0249
Casper, WY 82601
(307) 265-0249
Rank: #1212.
Founding Date: 1978
Grades: PK-8
3041 Paradise Dr
Casper, WY 82604
(307) 234-2450
Casper, WY 82604
(307) 234-2450
Rank: #1313.
Smart-Start Montessori Academy
Montessori School
Founding Date: 1980
Grades: PK-2
1014 N 8th St W
Riverton, WY 82501
(307) 856-7633
Riverton, WY 82501
(307) 856-7633
Rank: #1414.
Jackson Hole Christian Academy
(Christian)
Founding Date: 1985
Grades: K-12
1450 S Park Loop Rd
Jackson, WY 83001
(307) 733-1941
Jackson, WY 83001
(307) 733-1941
Rank: #1515.
Trinity Lutheran Classical School![Trinity Lutheran Classical School Photo]( "Trinity Lutheran Classical School Photo")
(Lutheran Church Missouri Synod)
Founding Date: 1991
Grades: PK-8
419 E Park Ave
Riverton, WY 82501
(307) 857-5710
Riverton, WY 82501
(307) 857-5710
Rank: #1616.
Green River Christian Academy![Green River Christian Academy Photo]( "Green River Christian Academy Photo")
(Baptist)
Founding Date: 1995
Grades: K-6
800 Homestead Dr
Green River, WY 82935
(307) 875-4405
Green River, WY 82935
(307) 875-4405
Rank: #1717.
Founding Date: 1996
Grades: K-12
2300 S Hickory St
Casper, WY 82604
(307) 234-6865
Casper, WY 82604
(307) 234-6865
Rank: #1818.
Destiny Christian Academy![Destiny Christian Academy Photo - Elementary Classroom]( "Destiny Christian Academy Photo - Elementary Classroom")
(Baptist)
Founding Date: 1998
Grades: K-12
215 E 8th St
Cheyenne, WY 82007
(307) 635-3759
Cheyenne, WY 82007
(307) 635-3759
Rank: #19 - 2019. - 20.
Mountain Academy Of Teton Science Schools![Mountain Academy Of Teton Science Schools Photo - Students engaging in hands-on learning in science class.]( "Mountain Academy Of Teton Science Schools Photo - Students engaging in hands-on learning in science class.")
Special Program Emphasis
Founding Date: 2001
Grades: NS-8
700 Coyote Canyon Rd.
Jackson, WY 83001
(307) 732-7775
Jackson, WY 83001
(307) 732-7775
Rank: #19 - 2019. - 20.
Youth Emergency Services
Alternative School
Founding Date: 2001
Grades: 7-12
905 N Gurley Ave
Gillette, WY 82716
(307) 686-0669
Gillette, WY 82716
(307) 686-0669
Rank: #2121.
Martin Luther Grammar School![Martin Luther Grammar School Photo]( "Martin Luther Grammar School Photo")
Alternative School (Lutheran Church Missouri Synod)
Founding Date: 2003
Grades: K-6
1300 W 5th St
Sheridan, WY 82801
(307) 674-6434
Sheridan, WY 82801
(307) 674-6434
Rank: #2222.
Founding Date: 2004
Grades: 9-12
1715 High School Road, #240
Jackson, WY 83001
(307) 733-5427
Jackson, WY 83001
(307) 733-5427
Rank: #2323.
John Paul II Catholic School
(Catholic)
Founding Date: 2007
Grades: NS-6
1000 Butler Spaeth Rd
Gillette, WY 82716
(307) 686-4114
Gillette, WY 82716
(307) 686-4114
Rank: #2424.
Jackson Hole Classical Academy![Jackson Hole Classical Academy Photo]( "Jackson Hole Classical Academy Photo")
(Christian)
Founding Date: 2011
Grades: K-12
2500 South Park Loop Road
Jackson, WY 83001
(307) 201-5040
Jackson, WY 83001
(307) 201-5040
Frequently Asked Questions
What is the Wyoming average private schools founding year?
The Wyoming average private schools founding year is 1968 for 2025-26.
What are the private schools with oldest founding year in Wyoming?
The top ranked private schools in Wyoming include St. Mary's Catholic School, Trinity Lutheran School and Colter High School.
What is private high school and private elementary school with the oldest founding year in Wyoming?
The private high school with the oldest founding year in Wyoming is Colter High School, with a year of 1905. The private elementary school with the oldest founding year is St. Mary's Catholic School, with a year of 1884.
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