9-12
High
Mercer Island High School
9100 Se 42Nd, Mercer Island, WA 98040 · Serves ninth grade through twelfth grade.
Supply lists by grade
These are the default lists for 2026-27. If your teacher has published their own, you'll see it on the grade page.
Teach at Mercer Island High School?
Claim your classroom and post your supply list, so parents shop once instead of guessing which version is current.