#1 Largest Private Schools in Wyoming
St. Anthony Tri-Parish Catholic School
Parish school · Grades Pre-K–8
199 students
Casper, WY
A-Overall grade199 students10 students per teacher
2026 lists
Largest Private Schools in Wyoming
The private schools in Wyoming with the most students. Top 19 of 19 schools.
#2 Largest Private Schools in Wyoming
Jackson Hole Classical Academy
Christian school (nondenominational) · Grades K–12
124 students
Jackson, WY
A-Overall grade124 students6 students per teacher
#3 Largest Private Schools in Wyoming
St. John Paul II Catholic School
Diocesan school · Grades Pre-K–6
112 students
Gillette, WY
A+Overall grade112 students9 students per teacher
#4 Largest Private Schools in Wyoming
St. Mary's Catholic School
Parish school · Grades Pre-K–6
110 students
Cheyenne, WY
A+Overall grade110 students9 students per teacher
#5 Largest Private Schools in Wyoming
Jackson Hole Community School
Independent school · Grades 9–12
101 students
Jackson, WY
A+Overall grade101 students6 students per teacher
#6 Largest Private Schools in Wyoming
Holy Name Catholic School
Diocesan school · Grades Pre-K–6
98 students
Sheridan, WY
BOverall grade98 students20 students per teacher
#7 Largest Private Schools in Wyoming
Holy Spirit Catholic School
Parish school · Grades Pre-K–6
85 students
Rock Springs, WY
A+Overall grade85 students9 students per teacher
#8 Largest Private Schools in Wyoming
Mount Hope Lutheran School
Lutheran (Missouri Synod) school · Grades K–11
70 students
Casper, WY
BOverall grade70 students12 students per teacher
#9 Largest Private Schools in Wyoming
Heritage Christian School
Christian school (nondenominational) · Grades Pre-K–12
68 students
Gillette, WY
B+Overall grade68 students9 students per teacher
#10 Largest Private Schools in Wyoming
Mountain Academy of Teton Science Schools
Independent school · Grades Pre-K–12
61 students
Jackson, WY
A+Overall grade61 students4 students per teacher
#11 Largest Private Schools in Wyoming
Veritas Academy
Christian school (nondenominational) · Grades Pre-K–9
60 students
Cody, WY
B+Overall grade60 students7 students per teacher
#12 Largest Private Schools in Wyoming
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–10
59 students
Cheyenne, WY
AOverall grade59 students7 students per teacher
#13 Largest Private Schools in Wyoming
Valley Christian School
Christian school (nondenominational) · Grades Pre-K–9
57 students
Torrington, WY
A-Overall grade57 students8 students per teacher
#14 Largest Private Schools in Wyoming
St. Margaret Catholic School
Parish school · Grades Pre-K–5
49 students
Riverton, WY
AOverall grade49 students9 students per teacher
#15 Largest Private Schools in Wyoming
Trinity Lutheran School
Lutheran (Missouri Synod) school · Grades Pre-K–6
37 students
Riverton, WY
A-Overall grade37 students11 students per teacher
#16 Largest Private Schools in Wyoming
St. Joseph's Children's Home
Alternative school · Grades 1–11
32 students
Torrington, WY
AOverall grade32 students5 students per teacher
#17 Largest Private Schools in Wyoming
Wyldflower Learning Community
Independent school · Grades K–12
30 students
Sheridan, WY
B+Overall grade30 students10 students per teacher
#18 Largest Private Schools in Wyoming
Wyoming Behavioral Institute
Alternative school · Grades 6–11
26 students
Casper, WY
A-Overall gradeAll girls26 students9 students per teacher
#19 Largest Private Schools in Wyoming
Green River Christian Academy
Baptist school · Grades K–5
25 students
Green River, WY
A-Overall grade25 students8 students per teacher
From official public records, updated October 2026.