MERCER ISLAND SCHOOL DISTRICT
MERCER ISLAND S.D. #400
Forgot your Login/Password?
Your Login is made up of the first five letters of the last name, the first three letters of the first name and then three digits.
If your last name does not have five letters, there will be spaces in your login.
Likewise if your first name does not have three letters, there will be spaces in your login.
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