Boise Girls Academy: Teen Challenge PNW Photo

Best Canyon County Private High Schools (2026)

For the 2026 school year, there are 7 private high schools serving 1,797 students in Canyon County, ID.
The top-ranked private high schools in Canyon County, ID include Centennial Baptist School, Nampa Christian Schools, and Gem State Adventist Academy.
The average acceptance rate is 90%, which is higher than the Idaho private high school average acceptance rate of 85%.
86% of private high schools in Canyon County, ID are religiously affiliated (most commonly Christian and Seventh Day Adventist).

Top-Ranked Canyon County Private High Schools (2026)

School
Location
Quick Facts
Centennial Baptist School
(Christian)
3610 E. Ustick Rd
Caldwell, ID 83605
(208) 454-1997
Gr: NS-12 | 240 students Avg. class size: 15 students Sports: 5 Tuition listed
Gem State Adventist Academy
(Seventh Day Adventist)
16115 S Montana Ave
Caldwell, ID 83607
(208) 459-1627
Gr: 9-12 | 60 students Avg. class size: 15 students
Greenleaf Friends Academy
Greenleaf Friends Academy Photo - .......a place to belong and be known
(Friends)
20565 Academy Rd
Greenleaf, ID 83626
(208) 459-6346
Gr: PK-12 | 307 students Avg. class size: 10 students Sports: 6 | Extracurrculars: 4 Tuition & acceptance rate listed
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)
11920 W. Flamingo Avenue
Nampa, ID 83651
(208) 475-1697
Gr: NS-12 | 1,053 student Avg. class size: 25 students Sports: 15 | Extracurrculars: 2 Tuition & acceptance rate listed
Boise Girls Academy: Teen Challenge PNW
Boise Girls Academy: Teen Challenge PNW Photo
All-girls (Christian)
(2)
1723 S. Horton St
Caldwell, ID 83605
(208) 546-0832
Gr: 7-12 | 29 students Sports: 3 Tuition listed
Calvary Christian School
Calvary Christian School Photo - Coach giving direction
(Christian)
1210 N Middleton Rd
Nampa, ID 83651
(208) 467-9114
Gr: K-11 | 81 students Avg. class size: 15 students Sports: 3 Tuition listed
Original Gangster's Academy
Alternative School
341 Creekside Place
Nampa, ID 83686
(208) 880-5655
Gr: 9-12 | 27 students

Overview

This County (Canyon County)
This State (ID)
# Schools
7 Schools

Student Body:

# Students
1,797 Students
12,452 Students
% Average Students of Color
18%
12%

Academics and Faculty:

# Teachers
85 Teachers
1,055 Teachers
Average Student-Teacher Ratio
21:1
12:1
% Average Faculty w/Advanced Degree
29%
51%
Average Class Size
16 students
15 students
Average Number of AP Courses
8 courses
10 courses
Average SAT score
1059
(Out of 1600)
1243
Average ACT score
24
(Out of 36)
27

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$10,650
$11,681
Average Summer Program Cost
$24
$512
Average % on Financial Aid
20%
20%
Average Financial Aid Grant
$1,600
$4,639
Average Acceptance Rate
90%
85%

Students by Ethnicity:

0.60
0.50
# American Indian Students
4 Students
58 Students
% American Indian Students
n/a
1%
# Asian Students
35 Students
270 Students
% Asian Students
2%
2%
# Hispanic Students
120 Students
507 Students
% Hispanic Students
7%
4%
# Black Students
23 Students
162 Students
% Black Students
1%
1%
# White Students
772 Students
8,181 Students
% White Students
44%
66%
# Hawaiian Students
4 Students
27 Students
% Hawaiian Students
n/a
n/a
# Two or more races Students
n/a
n/a
% of Two or more races Students
n/a
n/a
# Others Students
810 Students
3,211 Students
% of Others Students
46%
26%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
3 extracurriculars
9 extracurriculars
Average Number of Sports
6 sports
7 sports

Frequently Asked Questions

What are the top-ranked private high schools in Canyon County, ID?
The top-ranked private high schools in Canyon County, ID include Centennial Baptist School, Nampa Christian Schools, and Gem State Adventist Academy.
How many private high schools are located in Canyon County?
7 private high schools are located in Canyon County.
How diverse are private high schools in Canyon County?
Canyon County private high schools are approximately 18% minority students, which is higher than the Idaho private school average of 12%.
What percentage of private high schools are religiously affiliated in Canyon County?
86% of private high schools in Canyon County are religiously affiliated (most commonly Christian and Seventh Day Adventist).
Which private high schools in Canyon County are often viewed compared to one another?

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