Riverstone International School Photo - Riverstone International School is the premier, IB day/boarding school in Boise for Preschool-Gr 12 students. The school's 14 acre campus is nestled between the Boise River and the Greenbelt in Southeast Boise.

Average Private High School ACT Scores in Idaho

The averageprivate high school ACT score in Idaho is 27 (2025).
The private high school in Idaho with the highest ACT score is The North Fork School, with an ACT score of 32.
Act Score Range: 24 32 Avg. Act Score: 27

Average Private High School ACT Scores in Idaho (2025)

School
ACT Score
Grades
Location
Rank: #11.
The North Fork School
The North Fork School Photo - Hard work. Hard statistics. Open doors.
Special Program Emphasis
ACT Score: 32
Grades: 5-11
812 Reedy Lane
Mccall, ID 83638
(208) 634-4024
Rank: #22.
ACT Score: 29
Grades: PK-12
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Rank: #33.
Cole Valley Christian High School
Cole Valley Christian High School Photo
(Christian)
(8)
ACT Score: 27
Grades: NS-12
200 E Carlton Ave
Meridian, ID 83642
(208) 947-1212
Rank: #44.
Logos School
Logos School Photo
(Christian)
ACT Score: 26
Grades: PK-12
110 Baker St
Moscow, ID 83843
(208) 882-1226
Rank: #5 - 65. - 6.
Bishop Kelly High School
Bishop Kelly High School Photo
(Catholic)
ACT Score: 24
Grades: 9-12
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
Rank: #5 - 65. - 6.
Nampa Christian Schools
Nampa Christian Schools Photo - The class of 2016 celebrates commencement. 100% of these students when onto higher education. They have blessed our school beyond measure and will be missed.
(Christian)
ACT Score: 24
Grades: NS-12
11920 W. Flamingo Avenue
Nampa, ID 83651
(208) 475-1697

Frequently Asked Questions

What is the Idaho average private high schools ACT score?
The Idaho average private high schools ACT score is 27 for 2025.
What are the private high schools with the highest ACT score in Idaho?

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