For the 2026–2027 school year, the district serves 4,200 students across 6 schools in Washington. 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 Images
Official calendar scans for Mercer Island School District. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Mercer Island School District's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Mercer Island School District MISD.
Sources and Checks
Where these dates come from
How the 2026–2027 Mercer Island School District calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Mercer Island School District published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against mercerislandschools.org.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Mercer Island School District before booking around a date.
Common Questions
Frequently Asked 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
Recently Updated Calendars
Other Washington school district calendars — recently added or updated.