St. Marys School Photo - Our welcoming and accepting community is a cornerstone of our culture that encourages family engagement and partnership.

Best Boise Private Schools (2026)

For the 2026 school year, there are 35 private schools serving 4,863 students in Boise, ID (there are 78 public schools, serving 34,553 public students). 12% of all K-12 students in Boise, ID are educated in private schools (compared to the ID state average of 7%).
The top-ranked private schools in Boise, ID include Boise Valley Adventist School, Sacred Heart Catholic School, and Bishop Kelly High School.
The average tuition cost is $15,675, which is higher than the Idaho private school average tuition cost of $11,288.
38% of private schools in Boise, ID are religiously affiliated (most commonly Catholic and Christian).

Top-Ranked Boise Private Schools (2026)

School
Location
Quick Facts
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Gr: PK-12 | 416 students Avg. class size: 15 students Sports: 10 | Extracurrculars: 21 Tuition & acceptance rate listed
Challenger School - Boise
Challenger School - Boise Photo
Daycare / Preschool
5551 W. Bloom Street
Boise, ID 83703
(208) 338-9500
Gr: NS-1 Avg. class size: 12 students Tuition & acceptance rate listed
Bishop Kelly High School
Bishop Kelly High School Photo
(Catholic)
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
Gr: 9-12 | 945 students Avg. class size: 21 students Sports: 19 | Extracurrculars: 32 Tuition & acceptance rate listed
Boise Valley Adventist School
Boise Valley Adventist School Photo - Tree Lighting program
(Seventh Day Adventist)
(1)
925 N Cloverdale Road
Boise, ID 83713
(208) 376-7141
Gr: PK-8 | 100 students Avg. class size: 20 students Sports: 3 | Extracurrculars: 2 Tuition listed
Calvary Christian School
(Christian)
111 Auto Drive
Boise, ID 83709
(208) 376-0260
Gr: PK-7 | 228 students Avg. class size: 18 students Tuition & acceptance rate listed
Cole Valley Christian School
(Christian)
8775 W Ustick Rd
Boise, ID 83704
(208) 947-1212
Gr: 7-12 | 513 students Avg. class size: 20 students Tuition listed
Logan Christian Academy
Alternative School (Christian)
219 N Roosevelt St
Boise, ID 83706
(208) 912-2783
Gr: K-7 | 7 students Avg. class size: 13 students Tuition & acceptance rate listed
Sacred Heart Catholic School
(Catholic)
3901 Cassia St
Boise, ID 83705
(208) 344-9738
Gr: PK-8 | 218 students Tuition listed
St. Joseph's Catholic School
St. Joseph's Catholic School Photo
(Catholic)
(1)
825 W Fort St
Boise, ID 83702
(208) 342-4909
Gr: K-8 | 356 students Tuition listed
St. Marks Elementary School
(Catholic)
7503 W Northview St
Boise, ID 83704
(208) 375-6654
Gr: PK-8 | 345 students Avg. class size: 20 students Tuition listed
St. Marys School
St. Marys School Photo - Our welcoming and accepting community is a cornerstone of our culture that encourages family engagement and partnership.
(Catholic)
(1)
2620 W State St
Boise, ID 83702
(208) 342-7476
Gr: PK-8 | 180 students Avg. class size: 15 students Sports: 6 Tuition listed
The Children's School Of Boise
Daycare / Preschool
1015 N 8th St
Boise, ID 83702
(208) 343-6840
Gr: NS-K | 79 students Avg. class size: 12 students
Cloverdale Christian Ds
Alternative School (Church of God)
3755 S Cloverdale Rd
Boise, ID 83709
(208) 362-1700
Gr: PK-K | 102 students Tuition listed
Cloverdale Montessori
Montessori School
12255 W Goldenrod Ave
Boise, ID 83713
(208) 322-1200
Gr: PK-K | 40 students
Cole Valley Christian Middle School
(Christian)
8775 Ustick Road
Boise, ID 83704
(208) 344-9862
Gr: 6-8 | 85 students Avg. class size: 15 students Tuition listed
Creative Childrens Center
Daycare / Preschool
419 S Orchard
Boise, ID 83705
(208) 344-8221
Gr: PK-K | 42 students
Foothills School of Arts & Sciences
Foothills School of Arts & Sciences Photo - Foothills students become capable and confident learners during their time at Foothills! Foothills allows students to share their voice, empowers them to become critical thinkers and open-minded listeners, and promotes a positive school culture where everyone is valued.
Special Program Emphasis
601 South 9th Street
Boise, ID 83702
(208) 331-9260
Gr: PK-9 | 158 students Avg. class size: 13 students Tuition & acceptance rate listed
Heroes Academy
Montessori School
(3)
5771 N Discovery Way
Boise, ID 83713
(208) 991-4376
Gr: PK-12 | 79 students Tuition listed
Hillside Academy
Alternative School
3900 Hill Road
Boise, ID 83703
(208) 343-8919
Gr: PK-1 | 22 students Tuition listed
Intermountain School & Hosp
Alternative School
303 N Allumbaugh St
Boise, ID 83704
(208) 350-2324
Gr: 7-12 | 20 students
Kidz Connection Montessori
Montessori School
2310 Columbus St
Boise, ID 83705
(208) 384-1191
Gr: PK-6 | 112 students
Lakewood Montessori
Montessori School
133 E Lindon St
Boise, ID 83706
(208) 331-3888
Gr: PK-K | 126 students
Learning Tree Inc
Daycare / Preschool
2908 N 28th St
Boise, ID 83703
(208) 342-7821
Gr: PK-K | 87 students
3110 East Barber Valley Drive
Boise, ID 83716
(208) 417-7053
Montessori Academy On Parkcenter
Montessori School
649 E Parkcenter Blvd
Boise, ID 83706
(208) 344-0004
Gr: PK-K | 136 students Tuition listed
649 E Parkcenter Blvd
Boise, ID 83706
(208) 298-5477
155 E Boise Avenue
Boise, ID 83706
(208) 386-9108
Gr: PK-3 | 56 students Tuition listed
7670 W Northview St
Boise, ID 83704
(208) 322-0152
Gr: PK-K | 80 students Avg. class size: 15 students Tuition listed
One Stone
Alternative School
1151 W Miller St
Boise, ID 83702
(208) 451-3825
Gr: 9-12 | 126 students
Overland Montessori
Montessori School
1461 S Weideman Ave
Boise, ID 83709
(208) 484-6128
Gr: PK-K | 27 students
Petra Christian Academy
(Christian)
3080 Wildwood St
Boise, ID 83713
(208) 505-0066
Gr: 1-9 | 24 students
Rose Hill Montessori School
Montessori School
4603 W Albion St
Boise, ID 83705
(208) 385-7674
Gr: PK-6 | 52 students
Vista Montessori School
Montessori School
2096 S Gourley St
Boise, ID 83705
(208) 343-0201
Gr: PK-K | 22 students
Wesleyan Preschool & Kindergarten
Daycare / Preschool (Methodist)
717 N 11th St
Boise, ID 83702
(208) 343-3778
Gr: PK-K | 80 students
Boise KinderCare
Daycare / Preschool
1410 N Etheridge Ln.
Boise, ID 83704
(208) 321-2094
Gr: NS-PK
[+] Show Closed Private Schools in Boise, Idaho

Boise, Idaho Private Schools (Closed)

School
Location
Quick Facts
1439 S Weideman Ave
Boise, ID 83709
(208) 322-8981
Gr: PK-K | 14 students
12000 W Fairview Ave
Boise, ID 83713
(208) 376-7272
Gr: K-6 | 66 students

Overview

This Town (Boise)
This State (ID)
# Schools
34 Schools

Student Body:

# Students
4,863 Students
21,971 Students
% Average Students of Color
19%
15%

Academics and Faculty:

# Teachers
411 Teachers
1,684 Teachers
Average Student-Teacher Ratio
12:1
13:1
% Average Faculty w/Advanced Degree
67%
57%
Average Class Size
16 students
15 students
Average Number of AP Courses
17 courses
10 courses
Average SAT score
1268
(Out of 1600)
1243
Average ACT score
27
(Out of 36)
27

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$15,675
$11,288
Average % on Financial Aid
24%
19%
Average Financial Aid Grant
$5,600
$3,626
Average Acceptance Rate
81%
87%
Average Endowment Size
$66 million
$45.83 million

Students by Ethnicity:

0.52
0.55
# American Indian Students
18 Students
92 Students
% American Indian Students
n/a
n/a
# Asian Students
115 Students
462 Students
% Asian Students
3%
2%
# Hispanic Students
318 Students
1,063 Students
% Hispanic Students
7%
5%
# Black Students
62 Students
385 Students
% Black Students
1%
2%
# White Students
3,030 Students
12,996 Students
% White Students
66%
60%
# Hawaiian Students
20 Students
50 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
1,064 Students
6,725 Students
% of Others Students
23%
31%
All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
18 extracurriculars
8 extracurriculars
Average Number of Sports
10 sports
6 sports

Frequently Asked Questions

What are the top-ranked private schools in Boise, ID?
The top-ranked private schools in Boise, ID include Boise Valley Adventist School, Sacred Heart Catholic School, and Bishop Kelly High School.
How many private schools are located in Boise?
35 private schools are located in Boise.
How much do private schools cost in Boise?
The average tuition cost is $15,675, which is higher than the Idaho private school average tuition cost of $11,288.
How diverse are private schools in Boise?
Boise private schools are approximately 19% minority students, which is higher than the Idaho private school average of 15%.
What percentage of students in Boise go to private school?
12% of all K-12 students in Boise are educated in private schools (compared to the ID state average of 7%).
What percentage of private schools are religiously affiliated in Boise?
38% of private schools in Boise are religiously affiliated (most commonly Catholic and Christian).
Which private schools in Boise are often viewed compared to one another?

Recent Articles

Navigating Private School Finances 2026
Navigating Private School Finances 2026
Essential 2026 guide for parents on private school costs, financial aid, and planning strategies.
Preparation for Standardized Tests & College Admissions 2026
Preparation for Standardized Tests & College Admissions 2026
A 2026 guide for private school test prep and college admissions strategies, with insights, trends, and best practices for families and educators.
Mental Health & Wellness Support in Private Schools: Key Questions for Parents
Mental Health & Wellness Support in Private Schools: Key Questions for Parents
Discover essential questions about mental health & wellness support in private schools before enrolling, with 2026 updates for informed decisions.