Private School Review - Established 2003
Challenger School - Meridian Top 19 · Oldest Founding Date (ID)
Challenger School - Boise Top 19 · Oldest Founding Date (ID)
Cole Valley Christian High School Top 3 · Most AP Courses (ID)

Best Ada County Private Elementary Schools (2026-27)

For the 2026-27 school year, there are 26 private elementary schools serving 6,108 students in Ada County, ID.
The average tuition cost is $15,129, which is higher than the Idaho private elementary school average tuition cost of $11,140.
54% of private elementary schools in Ada County, ID are religiously affiliated (most commonly Christian and Catholic).

Quick Facts (2026-27)

  • # Private Schools: 26
  • # Students Served: 6,108
  • Average Tuition: $15,129
  • % Students on Financial Aid: 15%
  • Acceptance Rate: 80%
  • Average Class Size: 17 students
  • % Students of Color: 13%
  • View Ada County, ID School Trends

Quick Facts (2026-27)

  • # Private Schools: 26
  • # Students Served: 6,108
  • Average Tuition: $15,129
  • % Students on Financial Aid: 15%
  • Acceptance Rate: 80%
  • Average Class Size: 17 students
  • % Students of Color: 13%
  • View Ada County, ID School Trends

Top Ranked Ada County Private Elementary Schools (2026-27)

Challenger School - Boise Photo
Challenger School - Boise
Gr: NS-1
Avg. class size: 12 students
Daycare / Preschool
5551 W. Bloom Street
Boise, ID 83703
(208) 338-9500
View Profile
Challenger School - Meridian Photo
Challenger School - Meridian
Gr: NS-8
2020 W. Everest Lane
Meridian, ID 83646
(208) 846-8888
(1)
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
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
Map of Calvary Christian School
Calvary Christian School
Gr: PK-7 | 228 students
Avg. class size: 18 students
Christian
111 Auto Drive
Boise, ID 83709
(208) 376-0260
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
Map of Cole Valley Christian School
Cole Valley Christian School
Gr: 7-12 | 513 students
Avg. class size: 20 students
Christian
8775 W Ustick Rd
Boise, ID 83704
(208) 947-1212
View Profile
Map of Logan Christian Academy
Logan Christian Academy
Gr: K-7 | 7 students
Avg. class size: 13 students
Alternative School (Christian)
219 N Roosevelt St
Boise, ID 83706
(208) 912-2783
View Profile
Riverstone International School Photo
Riverstone International School
Gr: PK-12 | 355 students
Avg. class size: 15 students
Sports: 11 | Extracurriculars: 21
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
(11)
View Profile
Map of Sacred Heart Catholic School
Sacred Heart Catholic School
Gr: PK-8 | 218 students
Catholic
3901 Cassia St
Boise, ID 83705
(208) 344-9738
View Profile
St. Joseph's Catholic School Photo
St. Joseph's Catholic School
Gr: K-8 | 356 students
Catholic
825 W Fort St
Boise, ID 83702
(208) 342-4909
(1)
View Profile
Map of St. Marks Elementary School
St. Marks Elementary School
Gr: PK-8 | 345 students
Avg. class size: 20 students
Catholic
7503 W Northview St
Boise, ID 83704
(208) 375-6654
View Profile
St. Marys School Photo
St. Marys School
Gr: PK-8 | 180 students
Avg. class size: 15 students
Sports: 6
Catholic
2620 W State St
Boise, ID 83702
(208) 342-7476
(1)
View Profile
Map of Cole Valley Christian Middle School
Cole Valley Christian Middle School
Gr: 6-8 | 85 students
Christian
8775 Ustick Road
Boise, ID 83704
(208) 344-9862
View Profile
Map of Eagle Adventist Christian School & Preschool
Eagle Adventist Christian School & Preschool
Gr: PK-7 | 38 students
Avg. class size: 15 students
Seventh Day Adventist
538 W State St
Eagle, ID 83616
(208) 938-0093
View Profile
Foothills School of Arts & Sciences Photo
Foothills School of Arts & Sciences
Gr: PK-9 | 158 students
Avg. class size: 13 students
Specialized Curriculum
601 South 9th Street
Boise, ID 83702
(208) 331-9260
View Profile
Map of Hall Institute For The Arts
Hall Institute For The Arts
Gr: 7-12 | 28 students
Specialized Curriculum
1167 E Iron Eagle Dr
Eagle, ID 83616
(208) 957-7024
View Profile
Map of Heroes Academy
Heroes Academy
Gr: PK-12 | 79 students
Montessori School
5771 N Discovery Way
Boise, ID 83713
(208) 991-4376
(3)
View Profile
Map of Hillside Academy
Hillside Academy
Gr: PK-1 | 22 students
Alternative School
3900 Hill Road
Boise, ID 83703
(208) 343-8919
View Profile
Map of Intermountain School & Hosp
Intermountain School & Hosp
Gr: 7-12 | 20 students
Alternative School
303 N Allumbaugh St
Boise, ID 83704
(208) 350-2324
View Profile
[+] Show Closed Private Schools in Ada County, Idaho

Ada County Private Elementary Schools (Closed)

Map of Five Mile Montessori
Five Mile Montessori
Gr: PK-K | 14 students
Montessori School
1439 S Weideman Ave
Boise, ID 83709
(208) 322-8981
View Profile
Map of Maranatha Christian School
Maranatha Christian School
Gr: K-6 | 66 students
Assembly of God
12000 W Fairview Ave
Boise, ID 83713
(208) 376-7272
View Profile
Map of Vineyard Christian Academy
Vineyard Christian Academy
Gr: PK-8 | 108 students
Specialized Curriculum (Christian)
4950 N Bradley St
Garden City, ID 83714
(208) 562-4551
View Profile

Overview

Category
This State (ID)
US
# Schools
28 Schools

Trends in Total Number of Private Elementary Schools

YearAda County Total Schools
202528
202430
202325
202224
202123
202024
201925
201828
201722
201625
201526
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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.

# Students
6,108 Students
18,203 Students

Trends in the Average Number of Students Per Private Elementary School

YearAda County AverageIdaho (ID) AverageNational Average
2025235159199
2024221155192
2023171136193
2022228146205
2021232145201
2020190126188
2019174125193
2018162125190
2017183132199
2016177128196
2015167119183
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% Average Students of Color
13%
13%

Percentage of Students of Color Trends (2015-2025)

YearAda County AverageIdaho (ID) AverageNational Average
202513%13%33%
202414%14%32%
202316%15%32%
202210%12%32%
202111%13%31%
202011%13%31%
201913%12%31%
201812%13%30%
201710%13%31%
201610%13%31%
201510%13%31%
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Academics and Faculty:

# Teachers
492 Teachers
1,425 Teachers
Average Student-Teacher Ratio
12:1
13:1

Student-Teacher Ratio Trends (2015-2025)

YearAda County AverageIdaho (ID) AverageNational Average
202512:113:111:1
202412:113:111:1
202313:113:111:1
202212:113:111:1
202113:113:111:1
202013:112:111:1
201913:112:111:1
201813:112:111:1
201713:112:111:1
201613:113:112:1
201512:113:112:1
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% Average Faculty w/Advanced Degree
64%
56%

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

YearAda County AverageIdaho (ID) AverageNational Average
202564%56%54%
202457%54%54%
202349%50%53%
202254%50%53%
202161%51%53%
202044%45%53%
201940%45%52%
201847%46%52%
201747%45%51%
201649%48%51%
201555%48%50%
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Average Class Size
17 students
16 students

Class Size Trends (2015-2025)

YearAda County AverageIdaho (ID) AverageNational Average
2025171516
2024171515
2023151415
2022161415
2021161415
2020161415
2019161415
2018151415
2017151315
2016141315
2015141215
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Average Number of AP Courses
17 courses
9 courses
Average SAT score
1258
(Out of 1600)
Average ACT score
28
(Out of 36)

Tuition and Acceptance Rate:

Average Yearly Tuition Cost
$15,129
$11,140

Tuition Cost Trends (2015-2025)

YearAda County AverageIdaho (ID) AverageNational Average
2025$15,093$11,390$14,043
2024$8,369$8,826$12,357
2023$8,166$8,757$11,693
2022$7,638$8,370$11,199
2021$7,174$8,223$10,824
2020$6,774$8,316$10,496
2019$6,774$8,501$10,300
2018$5,910$6,008$10,056
2017$5,699$5,955$9,712
2016$5,312$5,497$9,307
2015$5,734$5,467$8,903
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Average % on Financial Aid
15%
20%

Percent on Financial Aid Trends (2015-2025)

YearAda County AverageIdaho (ID) AverageNational Average
202513%20%34%
202416%20%33%
202320%22%33%
202220%23%32%
202120%23%32%
202020%22%31%
201919%22%30%
201819%20%29%
201719%23%29%
201617%27%28%
201517%27%27%
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Average Financial Aid Grant
$5,171
$3,626

Financial Aid Grant Trends (2022-2025)

YearAda County AverageIdaho (ID) AverageNational Average
2025$5,171$3,626$6,227
2024$5,600$2,308$6,113
2023$2,600$1,708$5,785
2022$2,600$1,708$5,514
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Average Acceptance Rate
80%
87%

Acceptance Rate Trends (2015-2025)

YearAda County AverageIdaho (ID) AverageNational Average
202580%87%81%
202488%89%85%
202386%88%85%
202286%90%85%
202186%91%86%
202087%91%86%
201986%91%85%
201888%90%85%
201787%90%86%
201687%90%85%
201589%90%86%
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Average Endowment Size
$27 million
$ million

Students by Ethnicity:

0.52
0.52

Diversity Score Trends

YearAda County AverageIdaho (ID) AverageNational Average
20250.520.530.64
20240.520.530.64
20230.530.540.63
20220.500.520.62
20210.490.520.62
20200.380.470.62
20190.430.480.61
20180.440.480.60
20170.460.480.59
20160.440.470.59
20150.440.470.58
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# American Indian Students
15 Students
83 Students
% American Indian Students
n/a
n/a
# Asian Students
154 Students
411 Students
% Asian Students
3%
2%

Asian Student Percentage Trends

YearAda County AverageIdaho (ID) AverageNational Average
20253%2%5%
20245%3%5%
20237%4%5%
20223%2%5%
20213%2%5%
20205%3%5%
20194%3%4%
20184%3%4%
20174%2%4%
20163%2%4%
20153%2%4%
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# Hispanic Students
272 Students
867 Students
% Hispanic Students
5%
5%

Hispanic Student Percentage Trends

YearAda County AverageIdaho (ID) AverageNational Average
20255%5%9%
20244%5%9%
20235%5%9%
20223%4%8%
20213%4%9%
20203%5%9%
20194%5%8%
20184%5%8%
20173%4%8%
20163%4%8%
20153%4%8%
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# Black Students
86 Students
308 Students
% Black Students
1%
2%

Black Student Percentage Trends

YearAda County AverageIdaho (ID) AverageNational Average
20251%2%8%
20241%2%8%
20231%2%8%
20222%1%7%
20212%2%8%
20202%2%8%
20193%2%8%
20182%2%8%
20171%1%7%
20162%1%8%
20152%1%8%
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# White Students
3,966 Students
11,568 Students
% White Students
64%
64%

White Student Percentage Trends

YearAda County AverageIdaho (ID) AverageNational Average
202564%63%55%
202464%63%55%
202364%61%55%
202266%63%57%
202167%64%57%
202078%70%58%
201974%69%59%
201873%69%59%
201770%69%61%
201672%70%61%
201573%69%61%
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# Hawaiian Students
13 Students
41 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
1,675 Students
4,881 Students
% of Others Students
27%
27%

Other Races Student Percentage Trends

YearAda County AverageIdaho (ID) AverageNational Average
202527%28%22%
202426%27%22%
202323%28%22%
202226%28%22%
202125%27%20%
202012%19%19%
201915%20%20%
201817%20%20%
201722%23%19%
201620%22%18%
201519%23%18%
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All Ethnic Groups

Extracurriculars and Sports:

Average Number of Extracurriculars
11 extracurriculars
7 extracurriculars
Average Number of Sports
8 sports
6 sports

Frequently Asked Questions

What are the top ranked private elementary schools in Ada County, ID?
The top ranked private elementary schools in Ada County, ID include Riverstone International School, Sacred Heart Catholic School, and Cole Valley Christian High School.
How many private elementary schools are located in Ada County?
26 private elementary schools are located in Ada County.
How much do private elementary schools cost in Ada County?
The average tuition cost is $15,129, which is higher than the Idaho private school average tuition cost of $11,140.
How diverse are private elementary schools in Ada County?
Ada County private elementary schools are approximately 13% minority students, which is same as the Idaho private school average of 13%.
What percentage of private elementary schools are religiously affiliated in Ada County?
54% of private elementary schools in Ada County are religiously affiliated (most commonly Christian and Catholic).
Which private elementary schools in Ada County are often viewed compared to one another?

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