Seattle, WA · Founded 1919 · 8–12 · Independent, nonsectarian, coeducational day school
Last verified August 20, 2026
14050 1st Ave Ne, 98125 · (206) 368-3600
Enrollment
875
Student:teacher
9:1
Published tuition
$52,000
Application fee
$25
Tuition by division
| Division | Grades | Annual tuition | Notes |
|---|---|---|---|
| Middle school2026-2027 | grades 5-12 | $52,000 | — |
| High school2026-2027 | grades 5-12 | $52,000 | — |
Head of school
Ryan Boccuzzi
Head of School since 2026
Ryan Boccuzzi was approved as Lakeside's 12th head of school in June 2026, beginning in the 2026-27 school year.
Curriculum & special classes
A rigorous college-preparatory curriculum for grades 5-12 emphasizing academic excellence alongside social-emotional growth and global engagement.
Financial aid
Extensive need-based aid across a wide income range, with average aid-recipient tuition around $11,722.
Application fee: $25
Before & after school care
No extended-care hours or rates on file yet. This is one of the biggest surprise costs for working parents — if you know what before- and after-care runs here, add it below.
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Admissions
Lakeside School seeks students with a demonstrated joy for learning, academic success, and a willingness to be open-minded and positively engaged in a diverse community. The application process begins in early September through Aryval, with a holistic review of all submitted materials to understand each student comprehensively.
Apply by
January 28, 2027 (for the 2027-2028 school year); preliminary application and family-completed PSIS forms due January 14, 2027; financial aid deadline February 4, 2027.
Acceptance rate
Not listed
Application fee
$25
What they ask for: Preliminary Application Form and Fee, PSIS Student Essays, PSIS Interests and Activities, PSIS Parent/Guardian Statement, School Records/Transcripts, two Teacher Evaluations, Personal Reference Form, PSIS School Administrator Form, Test Scores (SSAT or ISEE), Middle School Admissions Activity.
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