#1 Best Independent Schools in Idaho
Riverstone International School
Independent school · Grades Pre-K–12
The smallest classes of any independent school in Boise
Boise, ID
A+Overall grade349 students5 students per teacher
2026 lists
Best Independent Schools in Idaho
The highest-graded schools of this kind in Idaho. Top 7 of 7 schools.
#2 Best Independent Schools in Idaho
Sun Valley Community School-Upper
Independent school · Grades Pre-K–12
The smallest classes of any independent school in Sun Valley
Sun Valley, ID
A+Overall grade397 students5 students per teacher
#3 Best Independent Schools in Idaho
Sun Valley Community School
Independent school · Grades Pre-K–12
100% of graduates go to four-year colleges
Sun Valley, ID
B+Overall grade391 students7 students per teacher
#4 Best Independent Schools in Idaho
Sun Valley Community School-Middle
Independent school · Grades Pre-K–12
One of the 3 largest independent schools in Idaho
Sun Valley, ID
B+Overall grade397 students8 students per teacher
#5 Best Independent Schools in Idaho
Sandpoint Waldorf School
Independent school · Grades Pre-K–8
The only independent school in Sandpoint
Sandpoint, ID
BOverall grade152 students9 students per teacher
#6 Best Independent Schools in Idaho
One Stone
Independent school · Grades 9–12
One of 3 independent schools in Boise
Boise, ID
BOverall grade87 students36 students per teacher
#7 Best Independent Schools in Idaho
CLRC
Independent school · Grades 1–12
The largest of 13 independent schools in Idaho
Naples, ID
B-Overall grade1,000 students
Grades compare each school's official facts, such as class size, how long it has served families and where graduates go, with similar schools. They're a starting point: visit, ask questions and trust what you see.