For the 2026 school year, there are 3 private high schools serving 329 students in Caldwell, ID.
The top-ranked private high schools in Caldwell, ID include Gem State Adventist Academy and Centennial Baptist School.
100% of private high schools in Caldwell, ID are religiously affiliated (most commonly Christian and Seventh Day Adventist).
Top-Ranked Caldwell Private High Schools (2026)
School
Location
Quick Facts
Centennial Baptist School
(Christian)
3610 E. Ustick Rd
Caldwell, ID 83605
(208) 454-1997
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
Caldwell, ID 83607
(208) 459-1627
Gr: 9-12 | 60 students Avg. class size: 15 students
1723 S. Horton St
Caldwell, ID 83605
(208) 546-0832
Caldwell, ID 83605
(208) 546-0832
Gr: 7-12 | 29 students Sports: 3 Tuition listed
Overview
This Town (Caldwell)
This State (ID)
# Schools
3 Schools
Student Body:
# Students
329 Students
12,364 Students
% Average Students of Color
35%
11%
Academics and Faculty:
# Teachers
23 Teachers
1,057 Teachers
Average Student-Teacher Ratio
14:1
12:1
% Average Faculty w/Advanced Degree
4%
51%
Average Class Size
15 students
15 students
Tuition and Acceptance Rate:
Average Yearly Tuition Cost
$5,700
$10,817
Students by Ethnicity:
Diversity Score
0.67
0.50
# American Indian Students
3 Students
58 Students
% American Indian Students
1%
1%
# Asian Students
15 Students
270 Students
% Asian Students
5%
2%
# Hispanic Students
48 Students
507 Students
% Hispanic Students
16%
4%
# Black Students
11 Students
162 Students
% Black Students
4%
1%
# White Students
148 Students
8,181 Students
% White Students
49%
67%
# Hawaiian Students
n/a
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
75 Students
3,123 Students
% of Others Students
25%
25%
All Ethnic Groups
Extracurriculars and Sports:
Average Number of Sports
4 sports
7 sports
Frequently Asked Questions
What are the top-ranked private high schools in Caldwell, ID?
The top-ranked private high schools in Caldwell, ID include Gem State Adventist Academy and Centennial Baptist School.
How many private high schools are located in Caldwell?
3 private high schools are located in Caldwell.
What percentage of private high schools are religiously affiliated in Caldwell?
100% of private high schools in Caldwell are religiously affiliated (most commonly Christian and Seventh Day Adventist).
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