Mercer Island School District serves 4,200 students across 6 schools in Washington for the 2026–2027 school year. Classes begin August 26, 2026 and end June 17, 2027, with 180 instructional days planned. All dates listed below are sourced from the district's official publications — verify with Mercer Island School District before scheduling around them.
Visual Calendar
Official calendar scans for Mercer Island School District. Click any image to open full-screen.
School Calendar
Download Mercer Island School District's 2026–2027 academic calendar PDF — holidays, breaks, and key dates.
About the District
Details and contact information for Mercer Island School District.
Common Questions
Mercer Island School District Calendar 2026–2027 — important dates and answers.
The first day of school is August 26, 2026.
Spring break is from April 12 to April 16, 2027.
Christmas break runs from December 21, 2026 to January 1, 2027.
Winter break is scheduled from December 21, 2026 through January 1, 2027.
Thanksgiving break is from November 26 to November 27, 2026.
The last day of school is June 17, 2027.
Mid-winter break is from February 15 to February 19, 2027.
No, there is no school on January 18, 2027 for Martin Luther King Jr. Day.
No, there is no school on May 31, 2027 for Memorial Day.
Explore More
Other Washington school district calendars — recently added or updated.