For the 2025 school year, there are 12 private high schools serving 4,568 students in Ada County, ID.
The top ranked private high schools in Ada County, ID include Riverstone International School, Cole Valley Christian High School, and The Ambrose School.
The average acceptance rate is 87%, which is higher than the Idaho private high school average acceptance rate of 86%.
Top Ranked Ada County Private High Schools (2025)
School
Location
Quick Facts
200 E Carlton Ave
Meridian, ID 83642
(208) 947-1212
Meridian, ID 83642
(208) 947-1212
Gr: NS-12 | 1,452 student Avg. class size: 24 students Sports: 14 | Extracurrculars: 12 Tuition & acceptance rate listed
5521 E Warm Springs Ave
Boise, ID 83716
(208) 424-5000
Boise, ID 83716
(208) 424-5000
Gr: PK-12 | 416 students Avg. class size: 15 students Sports: 10 | Extracurrculars: 21 Tuition & acceptance rate listed
6100 N. Locust Grove Rd.
Meridian, ID 83646
(208) 323-3888
Meridian, ID 83646
(208) 323-3888
Gr: PK-12 | 761 students Avg. class size: 23 students Sports: 7 | Extracurrculars: 8 Tuition & acceptance rate listed
Bishop Kelly High School![Bishop Kelly High School Photo]( "Bishop Kelly High School Photo")
(Catholic)
7009 Franklin Rd
Boise, ID 83709
(208) 375-6010
Boise, ID 83709
(208) 375-6010
Gr: 9-12 | 945 students Avg. class size: 21 students Sports: 19 | Extracurrculars: 32 Tuition & acceptance rate listed
Cole Valley Christian School
(Christian)
8775 W Ustick Rd
Boise, ID 83704
(208) 947-1212
Boise, ID 83704
(208) 947-1212
Gr: 7-12 | 513 students Avg. class size: 20 students Tuition listed
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.]( "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
Boise, ID 83702
(208) 331-9260
Gr: PK-9 | 158 students Avg. class size: 13 students Tuition & acceptance rate listed
Hall Institute For The Arts
Special Program Emphasis
1167 E Iron Eagle Dr
Eagle, ID 83616
(208) 957-7024
Eagle, ID 83616
(208) 957-7024
Gr: 7-12 | 28 students
5771 N Discovery Way
Boise, ID 83713
(208) 991-4376
Boise, ID 83713
(208) 991-4376
Gr: PK-12 | 79 students Tuition listed
Intermountain School & Hosp
Alternative School
303 N Allumbaugh St
Boise, ID 83704
(208) 350-2324
Boise, ID 83704
(208) 350-2324
Gr: 7-12 | 20 students
Petra Christian Academy
(Christian)
3080 Wildwood St
Boise, ID 83713
(208) 505-0066
Boise, ID 83713
(208) 505-0066
Gr: 1-9 | 24 students
Treasure Valley Baptist School
(Baptist)
1300 S Teare Ave
Meridian, ID 83642
(208) 898-9023
Meridian, ID 83642
(208) 898-9023
Gr: PK-11 | 46 students
Ada County Private Schools (Closed)
School
Location
Quick Facts
Five Mile Montessori (Closed 2021)
Montessori School
1439 S Weideman Ave
Boise, ID 83709
(208) 322-8981
Boise, ID 83709
(208) 322-8981
Gr: PK-K | 14 students
Maranatha Christian School (Closed 2010)
(Assembly of God)
12000 W Fairview Ave
Boise, ID 83713
(208) 376-7272
Boise, ID 83713
(208) 376-7272
Gr: K-6 | 66 students
Vineyard Christian Academy (Closed 2024)
Special Program Emphasis (Christian)
4950 N Bradley St
Garden City, ID 83714
(208) 562-4551
Garden City, ID 83714
(208) 562-4551
Gr: PK-8 | 108 students
Frequently Asked Questions
What are the top ranked private high schools in Ada County, ID?
The top ranked private high schools in Ada County, ID include Riverstone International School, Cole Valley Christian High School, and The Ambrose School.
How many private high schools are located in Ada County?
12 private high schools are located in Ada County.
How diverse are private high schools in Ada County?
Ada County private high schools are approximately 11% minority students, which is lower than the Idaho private school average of 12%.
What percentage of private high schools are religiously affiliated in Ada County?
Which private high schools in Ada County are often viewed compared to one another?
Popular comparisons of private high schools in Ada County include: Cole Valley Christian High School vs. The Ambrose School, The Ambrose School vs. Cole Valley Christian High School, Bishop Kelly High School vs. Riverstone International School
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