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Best Idaho Private Schools (2026-27)

For the 2026-27 school year, there are 167 private schools serving 21,692 students in Idaho, versus 799 public schools serving 314,729 students (6% of K-12 students attend private schools, vs. national average 10%).
The average private school tuition is $11,140 for elementary schools and $11,401 for high schools (view national tuition averages).
62% of schools are religiously affiliated, with most being Christian or Catholic.

Quick Facts (2026-27)

  • # Private Schools: 167
  • # Students Served: 21,692
  • Average Tuition: $11,079
  • % Students on Financial Aid: 19%
  • Acceptance Rate: 87%
  • Average Class Size: 15 students
  • % Students of Color: 15%
  • View Idaho School Trends

Quick Facts (2026-27)

  • # Private Schools: 167
  • # Students Served: 21,692
  • Average Tuition: $11,079
  • % Students on Financial Aid: 19%
  • Acceptance Rate: 87%
  • Average Class Size: 15 students
  • % Students of Color: 15%
  • View Idaho School Trends

Top Ranked Idaho Private Schools (2026-27)

Acton Academy Twin Falls Photo
Acton Academy Twin Falls
Gr: NS-10 | 36 students
Avg. class size: 15 students
Sports: 1
Montessori School
1830 Addison Ave E
Twin Falls, ID 83301
(208) 420-9520
View Profile
The Ambrose School Photo
The Ambrose School
Gr: PK-12 | 761 students
Avg. class size: 23 students
Sports: 7 | Extracurriculars: 8
Christian
6100 N. Locust Grove Rd.
Meridian, ID 83646
(208) 323-3888
(3)
View Profile
Bishop Kelly High School Photo
Bishop Kelly High School
Gr: 9-12 | 945 students
Avg. class size: 21 students
Sports: 19 | Extracurriculars: 32
Catholic
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
View Profile
Boise Valley Adventist School Photo
Boise Valley Adventist School
Gr: PK-8 | 100 students
Avg. class size: 20 students
Sports: 3 | Extracurriculars: 2
Seventh Day Adventist
925 N Cloverdale Road
Boise, ID 83713
(208) 376-7141
(1)
View Profile
Christian Center School Photo
Christian Center School
Gr: PK-12 | 239 students
Avg. class size: 20 students
Sports: 5 | Extracurriculars: 9
3639 W Prairie Ave
Hayden, ID 83835
(208) 772-7542
View Profile
Cole Valley Christian High School Photo
Cole Valley Christian High School
Gr: NS-12 | 1,517 students
Avg. class size: 24 students
Sports: 14 | Extracurriculars: 12
Christian
200 E Carlton Ave
Meridian, ID 83642
(208) 947-1212
(8)
View Profile
Greenleaf Friends Academy Photo
Greenleaf Friends Academy
Gr: PK-12 | 280 students
Avg. class size: 15 students
Sports: 5 | Extracurriculars: 1
Friends
20565 Academy Rd
Greenleaf, ID 83626
(208) 459-6346
View Profile
Heritage Christian Academy of North Idaho, Inc. Photo
Heritage Christian Academy of North Idaho, Inc.
Gr: 1-6 | 20 students
Avg. class size: 4 students
Specialized Curriculum (Christian)
32168 N. 5th Ave.
Spirit Lake, ID 83869
(208) 623-4446
(2)
View Profile
Holy Family Catholic School Photo
Holy Family Catholic School
Gr: PK-8 | 224 students
Avg. class size: 22 students
Sports: 3 | Extracurriculars: 6
Catholic
3005 W. Kathleen Avenue
Coeur D Alene, ID 83815
(208) 765-4327
(2)
View Profile
Holy Rosary Catholic School Photo
Holy Rosary Catholic School
Gr: PK-6 | 175 students
Avg. class size: 20 students
Extracurriculars: 7
Catholic
161 9th St
Idaho Falls, ID 83404
(208) 522-7781
View Profile

Idaho Private School Trends (10-Year)

167
Private Schools
+12.8% (+19 schools) 10-yr
21,692
Students
+40.2% (+6,215 students) 10-yr
$11,079
Avg. Tuition
+102.7% (+$5,612) 10-yr
15
Avg. Class Size
+25.0% (+3 students) 10-yr
15%
Students of Color
+7.1% (+1.0 pp) 10-yr
13:1
Student-Teacher Ratio
Enrollment & Diversity
Category
This State (ID)
US
# Schools
167 Schools

Trends in Total Number of Private Schools

Year(ID) Total Schools
2025167
2024169
2023151
2022141
2021145
2020152
2019139
2018142
2017125
2016132
2015148
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# Students
21,692 Students
5,690,765 Students

View Largest Idaho Private Schools

Trends in the Average Number of Students Per Private School

YearIdaho (ID) AvgNational
2025138179
2024134172
2023128174
2022128185
2021124180
2020111171
2019113175
2018112172
2017118180
2016116178
2015107167
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% Average Students of Color
15%
34%

Percentage of Students of Color Trends (2015-2025)

YearIdaho (ID) AvgNational
202515%34%
202415%34%
202315%33%
202213%33%
202114%32%
202013%32%
201914%31%
201814%31%
201714%32%
201614%32%
201514%32%
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Student By Grade

Distribution of Students By Grade Trends

GradeIdaho
Nursey348
Pre-K3,724
Kind2,145
11,494
21,453
31,402
41,366
51,416
61,359
71,379
81,211
91,162
101,136
11993
121,015
Not Listed89
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Academics
# Teachers
1,686 Teachers
508,570 Teachers
Average Student-Teacher Ratio
13:1
11:1

Student-Teacher Ratio Trends (2015-2025)

YearIdaho (ID) AvgNational
202513:111:1
202413:111:1
202313:111:1
202213:111:1
202113:111:1
202013:112:1
201912:112:1
201813:112:1
201713:112:1
201613:112:1
201513:112:1
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% Average Faculty w/Advanced Degree
57%
55%

View Idaho Private Schools with the Most Educated Faculty

Percentage of Faculty With Advanced Degrees Trends (2015-2025)

YearIdaho (ID) AvgNational
202557%55%
202454%54%
202351%54%
202250%54%
202151%54%
202045%54%
201945%53%
201846%53%
201745%53%
201648%52%
201548%52%
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Average Class Size
15 students
15 students

Class Size Trends (2015-2025)

YearIdaho (ID) AvgNational
20251515
20241515
20231415
20221415
20211415
20201415
20191415
20181415
20171315
20161315
20151215
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Average Number of AP Courses
10 courses
13 courses
Tuition & Aid
Average Yearly Tuition Cost
$11,079
$14,943

View Idaho Private Schools By Tuition Cost

Tuition Cost Trends (2015-2025)

YearIdaho (ID) AvgNational
2025$11,533$15,012
2024$8,818$13,254
2023$8,697$12,626
2022$8,375$12,187
2021$8,233$11,800
2020$8,323$11,512
2019$8,501$11,293
2018$6,089$11,017
2017$6,045$10,708
2016$5,497$10,356
2015$5,467$9,939
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Average % on Financial Aid
19%
35%

Percent on Financial Aid Trends (2015-2025)

YearIdaho (ID) AvgNational
202519%34%
202420%34%
202321%34%
202222%33%
202122%33%
202021%32%
201921%31%
201820%30%
201722%30%
201625%29%
201525%28%
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Average Financial Aid Grant
$3,626
$7,261

Financial Aid Grant Trends (2022-2025)

YearIdaho (ID) AvgNational
2025$3,626$7,073
2024$2,308$6,930
2023$1,708$6,469
2022$1,708$6,289
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Average Acceptance Rate
87%
82%

View Most Selective Private Schools in Idaho

Acceptance Rate Trends (2015-2025)

YearIdaho (ID) AvgNational
202587%81%
202489%85%
202389%85%
202290%85%
202191%85%
202091%85%
201991%85%
201890%85%
201790%85%
201690%85%
201590%85%
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Students by Ethnicity
0.55
0.65

View Idaho Private Schools Minority Statistics

Diversity Score Trends

YearIdaho (ID) AvgNational
20250.550.65
20240.550.65
20230.560.65
20220.550.64
20210.550.64
20200.520.64
20190.520.63
20180.520.63
20170.510.61
20160.500.61
20150.510.61
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# American Indian Students
92 Students
29,815 Students
% American Indian Students
1%
1%

Percentage of Private School Students of American Indian Trends

YearIdaho (ID) AvgNational
20211%1%
20201%1%
20191%1%
20181%2%
20171%1%
20161%1%
20151%1%
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# Asian Students
459 Students
264,585 Students
% Asian Students
2%
5%

Asian Student Percentage Trends

YearIdaho (ID) AvgNational
20252%5%
20242%5%
20233%5%
20223%4%
20212%4%
20203%4%
20193%4%
20183%4%
20172%4%
20162%4%
20152%4%
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Note: Data may not be displayed on any public-facing website or service that replicates or resembles a school search or review portal without prior written permission. See our Terms of Service.

# Hispanic Students
1,063 Students
506,702 Students
% Hispanic Students
5%
9%

Hispanic Student Percentage Trends

YearIdaho (ID) AvgNational
20255%9%
20245%9%
20234%9%
20224%8%
20214%9%
20204%9%
20195%8%
20185%8%
20174%8%
20164%8%
20154%8%
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# Black Students
383 Students
415,632 Students
% Black Students
2%
7%

Black Student Percentage Trends

YearIdaho (ID) AvgNational
20252%7%
20242%7%
20232%8%
20221%7%
20211%7%
20202%8%
20192%7%
20182%7%
20171%7%
20161%7%
20151%8%
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# White Students
12,965 Students
2,929,926 Students
% White Students
60%
52%

White Student Percentage Trends

YearIdaho (ID) AvgNational
202560%52%
202460%52%
202357%52%
202259%54%
202159%54%
202064%54%
201964%56%
201864%56%
201765%58%
201666%58%
201565%58%
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# Hawaiian Students
50 Students
20,065 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
6,517 Students
1,473,602 Students
% of Others Students
30%
26%

Other Races Student Percentage Trends

YearIdaho (ID) AvgNational
202531%26%
202431%26%
202334%25%
202233%25%
202133%25%
202026%24%
201925%24%
201825%23%
201727%22%
201626%22%
201527%21%
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All Ethnic Groups
Extracurriculars & Sports
Average Number of Extracurriculars
7 extracurriculars
9 extracurriculars
Average Number of Sports
6 sports
7 sports
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Frequently Asked Questions

What are the top ranked private schools in Idaho?
The top-ranked private schools in Idaho include Riverstone International School, The Ambrose School, and Cole Valley Christian High School.
How many private schools are located in Idaho?
There are 167 private schools are located in Idaho.
How much do private schools cost in Idaho?
The average private school tuition in Idaho is $11,140 for elementary schools and $11,401 for high schools
How diverse are private schools in Idaho?
Approximately 15% of students in Idaho private schools are minority students (compared to the national percentage).
What percentage of students in Idaho go to private school?
6% of all K-12 students in Idaho attend private schools (compared to the national average of 10%).
What percentage of private schools are religiously affiliated in Idaho?
62% of private schools in Idaho are religiously affiliated, with most being Christian or Catholic.
Which private schools in Idaho are often viewed compared to one another?

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