Riverstone International School Photo - Riverstone International School is the premier, IB day/boarding school in Boise for Preschool-Gr 12 students. The school's 14 acre campus is nestled between the Boise River and the Greenbelt in Southeast Boise.

Best Ada County Private Preschools (2025-26)

For the 2025-26 school year, there are 33 private preschools serving 6,125 students in Ada County, ID.
The top ranked private preschools in Ada County, ID include Riverstone International School, Cole Valley Christian High School, and The Ambrose School.
The average tuition cost is $15,685, which is higher than the Idaho private preschool average tuition cost of $12,244.
41% of private preschools in Ada County, ID are religiously affiliated (most commonly Christian and Catholic).

Top Ranked Ada County Private Preschools (2025-26)

School
Location
Quick Facts
Cole Valley Christian High School
Cole Valley Christian High School Photo
(Christian)
(8)
200 E Carlton Ave
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
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
2020 W. Everest Lane
Meridian, ID 83646
(208) 846-8888
Gr: NS-8
The Ambrose School
The Ambrose School Photo
(Christian)
(3)
6100 N. Locust Grove Rd.
Meridian, ID 83646
(208) 323-3888
Gr: PK-12 | 761 students Avg. class size: 23 students Sports: 7 | Extracurrculars: 8 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
Little Miracles
Daycare / Preschool (Christian)
439 N Star Rd
Star, ID 83669
(208) 286-0388
Gr: K | 15 students Tuition listed
Sacred Heart Catholic School
(Catholic)
3901 Cassia St
Boise, ID 83705
(208) 344-9738
Gr: PK-8 | 218 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
(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
A Child's Choice Montessori School
Montessori School
1797 S Millenium Way
Meridian, ID 83642
(208) 288-1990
Gr: PK-K | 29 students
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
Creative Childrens Center
Daycare / Preschool
419 S Orchard
Boise, ID 83705
(208) 344-8221
Gr: PK-K | 42 students
Eagle Adventist Christian School & Preschool
(Seventh Day Adventist)
538 W State St
Eagle, ID 83616
(208) 938-0093
Gr: PK-7 | 38 students Avg. class size: 15 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
Kidz Connection Montessori
Montessori School
2310 Columbus St
Boise, ID 83705
(208) 384-1191
Gr: PK-6 | 112 students
King's Kids Preschool & Kindergarten
Daycare / Preschool (Christian)
50 W Spicewood Dr.
Meridian, ID 83646
(208) 887-0801
Gr: PK-K | 21 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
Montessori Academy
Montessori School
1400 Park Ln
Eagle, ID 83616
(208) 939-6333
Gr: PK-6 | 107 students Avg. class size: 15 students
Montessori Academy On Parkcenter
Montessori School
649 E Parkcenter Blvd
Boise, ID 83706
(208) 344-0004
Gr: PK-K | 136 students Tuition listed
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
Rose Hill Montessori School
Montessori School
4603 W Albion St
Boise, ID 83705
(208) 385-7674
Gr: PK-6 | 52 students
Smarty Pants Preschool & Kindergarten
Smarty Pants Preschool & Kindergarten Photo - Building confidence and gaining new skills daily.
Daycare / Preschool
429 Swan Falls Rd
Kuna, ID 83634
(208) 573-6296
Gr: PK-K | 18 students Tuition listed
Treasure Valley Baptist School
(Baptist)
1300 S Teare Ave
Meridian, ID 83642
(208) 898-9023
Gr: PK-11 | 46 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
[+] Show Closed Private Schools in Ada County, Idaho

Ada County 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
Vineyard Christian Academy (Closed 2024)
Special Program Emphasis (Christian)
4950 N Bradley St
Garden City, ID 83714
(208) 562-4551
Gr: PK-8 | 108 students

Frequently Asked Questions

What are the top ranked private preschools in Ada County, ID?
The top ranked private preschools in Ada County, ID include Riverstone International School, Cole Valley Christian High School, and The Ambrose School.
How many private preschools are located in Ada County?
33 private preschools are located in Ada County.
How much do private preschools cost in Ada County?
The average tuition cost is $15,685, which is higher than the Idaho private school average tuition cost of $12,244.
How diverse are private preschools in Ada County?
Ada County private preschools are approximately 14% minority students, which is same as the Idaho private school average of 14%.
What percentage of private preschools are religiously affiliated in Ada County?
41% of private preschools in Ada County are religiously affiliated (most commonly Christian and Catholic).
Which private preschools in Ada County are often viewed compared to one another?

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