For the 2026–2027 school year, Columbia School District #400 publishes its official academic calendar for Washington. Classes begin Sep 2 and end Jun 16. All dates listed below are sourced from the district's official publications. Verify with Columbia School District #400 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Columbia School District #400. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Columbia School District #400's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
- Staff Development – Schools Closed (District Per Diem Day)Aug 31, 2026No School
- Staff Development – Schools Closed (District Per Diem Day)Sep 1, 2026No School
- Students First Day of SchoolSep 2, 2026School Opens
- Labor Day – Schools ClosedSep 7, 2026No School
- State Board of Education Waiver Day – Schools Closed (All Staff In-Service)Oct 2, 2026No School
- End of First Quarter – Early ReleaseOct 30, 2026Early Release
- Veteran's Day – Schools ClosedNov 11, 2026No School
- Schools Closed – ConferencesNov 23 — Nov 24No School
- Thanksgiving – Schools ClosedNov 25 — Nov 27No School
- Early ReleaseDec 18, 2026Early Release
- Winter Break – Schools ClosedDec 21 — Jan 1No School
- Staff Development – Schools Closed (District Per Diem Day)Jan 8, 2027No School
- Martin L. King Jr. Day – Schools ClosedJan 18, 2027No School
- High School Semester TestingJan 20 — Jan 21Event
- End of Second Quarter – Early ReleaseJan 22, 2027Early Release
- President's Day – No SchoolFeb 15, 2027No School
- State Board of Education Waiver Day – Schools Closed (All Staff In-Service)Mar 12, 2027No School
- End of Third Quarter – Early ReleaseApr 2, 2027Early Release
- Spring Break – Schools ClosedApr 5 — Apr 9No School
- Schools Closed – ConferencesApr 22 — Apr 23No School
- Staff Development – Schools Closed (District Per Diem Day)May 7, 2027No School
- Make Up Snow Day or No SchoolMay 28, 2027No School
- Memorial Day – Schools ClosedMay 31, 2027No School
- Academic Awards NightJun 8, 2027Event
- BaccalaureateJun 10, 2027Event
- High School CommencementJun 11, 2027Event
- High School Semester TestingJun 14 — Jun 15Event
- Kindergarten GraduationJun 14, 2027Event
- 8th Grade Moving-Up CeremonyJun 15, 2027Event
- Last Day of School – Early Release, End of Fourth QuarterJun 16, 2027School Closes
About the District
School Information
Details and contact information for Columbia School District #400 CSD.
Sources and Checks
Where these dates come from
How the 2026–2027 Columbia School District #400 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Columbia School District #400 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against columbia400.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 Columbia School District #400 before booking around a date.
Common Questions
Frequently Asked Questions
Columbia School District #400 Calendar 2026–2027 — important dates and answers.
The first day of school for students in Columbia School District #400 is September 2, 2026.
Spring Break in Columbia School District #400 is from April 5 through April 9, 2027. Schools will be closed.
The district calendar lists Winter Break from December 21, 2026 through January 1, 2027, covering the Christmas holiday period.
Winter Break in Columbia School District #400 is from December 21, 2026 through January 1, 2027. Schools will be closed.
Thanksgiving Break is from November 25 through November 27, 2026. Schools will be closed.
The last day of school is June 16, 2027. It is also an early release day and the end of the fourth quarter.
Schools will be closed for Labor Day on September 7, 2026.
Schools will be closed for conferences on November 23 and November 24, 2026.
Schools will be closed for Veterans Day on November 11, 2026.
Schools will be closed for Martin Luther King Jr. Day on January 18, 2027.
There will be no school on Presidents Day, February 15, 2027.
Schools will be closed for conferences on April 22 and April 23, 2027.
Schools will be closed for Memorial Day on May 31, 2027.
May 28, 2027 is scheduled as a make-up snow day or no-school day.
High School Commencement is scheduled for June 11, 2027.
Kindergarten Graduation is scheduled for June 14, 2027.
The 8th Grade Moving-Up Ceremony is scheduled for June 15, 2027.
Explore More
Recently Updated Calendars
Other Washington school district calendars — recently added or updated.