Tlc Montessori Photo - Science

Best Sammamish Private Schools (2025-26)

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%.
30% of private schools in Sammamish, WA are religiously affiliated (most commonly Catholic and Other).

Top Ranked Sammamish Private Schools (2025-26)

School
Location
Quick Facts
Eastside Catholic School
Eastside Catholic School Photo - The Eastside Catholic School campus is situated on 50 acres on Sammamish plateau and surrounded by protected wetlands and forest.
(Catholic)
(7)
232 228th Avenue SE
Sammamish, WA 98074
(425) 295-3000
Gr: 6-12 | 836 students Avg. class size: 19 students Sports: 19 | Extracurrculars: 22 Tuition & acceptance rate listed
Arbor Schools
Montessori School
(3)
1107 228th Avenue Se
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
Gr: 6-12 | 862 students
Aster Montessori
Aster Montessori Photo
Montessori School
(6)
2825 244th AVE SE
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
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
Gr: PK-K | 162 students Avg. class size: 20 students Tuition listed
2908 228th Ave SE, Ste B
Sammamish, WA 98075
(425) 562-3545
Gr: 6-12 | 176 students Tuition listed
Sammamish Childrens School
Daycare / Preschool
(1)
207 228th Ave Se
Sammamish, WA 98074
(425) 313-9000
Gr: PK-K | 104 students Avg. class size: 10 students
Sammamish KinderCare
Sammamish KinderCare Photo - Sammamish KinderCare
Daycare / Preschool
22931 NE 4th St.
Sammamish, WA 98074
(425) 837-5340
Gr: NS-PK
Tlc Montessori
Tlc Montessori Photo - Science
Montessori School
21512 NE 16th Street
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?
30% of private schools in Sammamish are religiously affiliated (most commonly Catholic and Other).
Which private schools in Sammamish are often viewed compared to one another?

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