For the 2025-26 school year, there are 10 private schools serving 2,505 students in Sammamish, WA (there are 15 public schools, serving 11,959 public students). 17% of all K-12 students in Sammamish, WA are educated in private schools (compared to the WA state average of 10%).
The top ranked private schools in Sammamish, WA include Eastside Catholic School, Arbor Schools, and Eastside Catholic High School.
The average acceptance rate is 99%, which is higher than the Washington private school average acceptance rate of 82%.
Top Ranked Sammamish Private Schools (2025-26)
School
Location
Quick Facts
232 228th Avenue SE
Sammamish, WA 98074
(425) 295-3000
Sammamish, WA 98074
(425) 295-3000
Gr: 6-12 | 836 students Avg. class size: 19 students Sports: 19 | Extracurrculars: 22 Tuition & acceptance rate listed
1107 228th Avenue Se
Sammamish, WA 98075
(425) 392-8053
Sammamish, WA 98075
(425) 392-8053
Gr: PK-6 | 170 students Avg. class size: 20 students Extracurrculars: 6
Eastside Catholic High School
(Catholic)
232 228th Ave Se
Sammamish, WA 98074
(425) 295-3024
Sammamish, WA 98074
(425) 295-3024
Gr: 6-12 | 862 students
2825 244th AVE SE
Sammamish, WA 98075
(425) 270-3226
Sammamish, WA 98075
(425) 270-3226
Gr: PK-K | 50 students Avg. class size: 20 students Sports: 1
711 228th Ave Ne
Sammamish, WA 98074
(425) 836-1600
Sammamish, WA 98074
(425) 836-1600
Gr: 6-12 | 17 students Tuition listed
Lakeside Montessori School
Montessori School
3310 E Lake Sammamish Pkwy Se Ste C1
Sammamish, WA 98075
(425) 392-0100
Sammamish, WA 98075
(425) 392-0100
Gr: PK-K | 162 students Avg. class size: 20 students Tuition listed
2908 228th Ave SE, Ste B
Sammamish, WA 98075
(425) 562-3545
Sammamish, WA 98075
(425) 562-3545
Gr: 6-12 | 176 students Tuition listed
207 228th Ave Se
Sammamish, WA 98074
(425) 313-9000
Sammamish, WA 98074
(425) 313-9000
Gr: PK-K | 104 students Avg. class size: 10 students
Tlc Montessori![Tlc Montessori Photo - Science Tlc Montessori Photo - Science]()

Montessori School
21512 NE 16th Street
Sammamish, WA 98074
(425) 868-1943
Sammamish, WA 98074
(425) 868-1943
Gr: PK-1 | 128 students Avg. class size: 20 students Tuition listed
Frequently Asked Questions
What are the top ranked private schools in Sammamish, WA?
The top ranked private schools in Sammamish, WA include Eastside Catholic School, Arbor Schools, and Eastside Catholic High School.
How many private schools are located in Sammamish?
10 private schools are located in Sammamish.
How diverse are private schools in Sammamish?
Sammamish private schools are approximately 27% minority students, which is lower than the Washington private school average of 31%.
What percentage of students in Sammamish go to private school?
17% of all K-12 students in Sammamish are educated in private schools (compared to the WA state average of 10%).
What percentage of private schools are religiously affiliated in Sammamish?
Which private schools in Sammamish are often viewed compared to one another?
Popular comparisons of private schools in Sammamish include: Aster Montessori vs. Arbor Schools, Sammamish KinderCare vs. Sammamish Childrens School, Tlc Montessori vs. Arbor Schools
Recent Articles

Transferring from Public to Private School Mid-Year: What to Expect
Considering a mid-year transfer from public to private school? Learn what to expect with admissions, academic placement, social adjustment, and financial aid to ensure a smooth transition.

A Guide to Day vs. Boarding School: Which Is Right for Your Family
Discover the key differences between day and boarding schools to determine the best fit for your child. Explore benefits, costs, lifestyle factors, and questions to help guide your family’s decision.

The A to Z of Private Schools 2025
Explore the A to Z of private schools in 2025—from admissions to tuition—offering parents and educators clear insights into today’s options.