Looking for the King County school calendars for 2026-27? Trying to plan around the school year dates? We’ve compiled school start dates, holiday breaks, and last days of school for districts across King and Snohomish counties to help families stay organized. This family-focused guide to Washington public school calendars includes major holidays and district-specific schedules so you can plan ahead for vacations, camps, and more.
Key School Holidays 2026-2027
NOTE: All school districts will close schools on national holidays:
- Veterans Day: November 11, 2026
- Martin Luther King Jr. Day: January 18, 2027
- Memorial Day: May 31, 2027
Other school closure days will follow patterns similar to one another, but exact dates may vary:
- Thanksgiving and Native American Heritage Break
- Winter Break
- Mid-Winter Break
- Spring Break
- Last Day of School
Specific dates, where available, are noted below for all school districts in King and Snohomish counties.
Snohomish County School District Calendars
Arlington School District
- First Day of School: August 31, 2026 (K-12), September 1, 2026 (K)
- Thanksgiving Break: November 25-27, 2026
- Winter Break: December 23, 2026 – January 1, 2027
- Spring Break: March 22-26, 2027
- Other dates: TBD
Darrington School District
- First Day of School: August 31, 2026 (K-12)
- Thanksgiving Break: November 26-27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Spring Break: April 5-9, 2027
- Last Day of School: June 11, 2027
Edmonds School District
- First Day of School: September 2, 2026 (1-12), September 9, 2026 (K)
- Thanksgiving Break: November 25–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15–16, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 22, 2027
- First Day of School: September 2, 2026 (K-12)
- Last Day of School: June 5, 2027
- Other Dates TBA
Granite Falls School District
- First Day of School: September 2, 2026 (K-12)
- Last Day of School: June 5, 2027
- Other Dates TBA
Index School District
- First Day of School: September 8, 2026
- Thanksgiving Break: November 25–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15–16, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 17, 2027
Lake Stevens School District
- First Day of School: September 2–3, 2026 (1-12, staggered by grade)
- Thanksgiving Break: November 25–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 12–15, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 15, 2027
Lakewood School District
- First Day of School: September 2, 2026 (K-12), September 8, 2026 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15–16, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 15, 2027
Marysville School District
- First Day of School: August 23, 2026
- Thanksgiving Break: November 25–27, 2026
- Winter Break: December 21, 2026 – January 4, 2027
- Mid-Winter Break: February 13–16, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: May 26, 2027
Monroe School District
- First Day of School: September 9, 2026 (1-12), September 14 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 13–16, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 23, 2027
Mukilteo School District
- First Day of School:September 9, 2026 (1-12), September 14, 2026 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 12-15, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 23, 2027
Snohomish School District
- First Day of School: September 1, 2026
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15–16, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 14, 2027 (tentative)
Stanwood-Camano School District
- First Day of School: September 2, 2026 (1-12), September 8, 2026 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15, 2027
- Spring Break: April 5-9, 2027
- Last Day of School: June 14, 2027
Sultan School District
- First Day of School: August 16, 2026
- Thanksgiving Break: November 26, 2026
- Winter Break: December 21, 2026 – January 7, 2027
- Spring Break: March 28 – April 1, 2027
- Last Day of School: June 15, 2027
King County School District Calendars
Each school district calendar in King County includes different start dates and breaks. This section helps clarify the school start and end dates for each.
Seattle Public Schools
- First Day of School: September 2, 2026 (1-12), September 8, 2026 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026– January 1, 2027
- Mid-Winter Break: February 15–19, 2027
- Spring Break: April 12–16, 2027
- Last Day of School: June 21, 2027
Bellevue School District
- First Day of School: August 13, 2026 (most students), August 14, 2026 (returning students, grades 10-12)
- Thanksgiving Break: November 23–27, 2026
- Winter Break: December 23, 2026 – January 5, 2027
- Spring Break: March 15-19, 2027
- Last Day of School: May 27, 2027
Enumclaw School District
- First Day of School: August 26, 2026 (1-9), August 27, 2026 (10-12)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 16, 2027
- Spring Break: April 19–23, 2027
- Last Day of School: June 16, 2027
Federal Way School District
- First Day of School: September 1, 2026
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15, 2027
- Spring Break: April 5-9, 2027
- Last Day of School: June 17, 2027 (Seniors June 10, 2027)
Kent School District
- First Day of School: August 26, 2026
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15-19, 2027
- Spring Break: April 5-9, 2027
- Last Day of School: June 17, 2027
Highline School District
- First Day of School: September 3, 2026 (1-12), September 9, 22026 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 12, 2027
- Spring Break: April 5-9, 2027
- Last Day of School: June 17, 2027
Issaquah School District
- First Day of School: August 27, 2026
- Thanksgiving Break: November 25–27, 2026
- Winter Break: December 21, 2026 – January 2, 2027
- Mid-Winter Break: February 16–20, 2027
- Spring Break: April 13–16, 2027
- Last Day of School: June 16, 2027
Renton School District
- First Day of School: August 26, 2026 (1-12), August 31, 2026 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 2, 2027
- Mid-Winter Break: February 15–19, 2027
- Spring Break: April 5-9, 2027
- Last Day of School: June 16, 2027
Riverview School District
- First Day of School: September 1, 2026
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 12–15, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 16, 2027
Tahoma School District
- First Day of School: August 26, 2026
- Thanksgiving Break: November 26-27, 2026
- Winter Break: December 22, 2026 – January 1, 2027
- Mid-Winter Break: February 16–19, 2027
- Spring Break: April 5–9, 2027
- Last Day of School: June 15, 2027
Tukwila School District
- First Day of School: September 2, 2026
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 16, 2027 (inclement day makeup if necessary)
- Spring Break: April 5–9, 2027
- Last Day of School: TBA
Shoreline School District
- First Day of School: September 1, 2026 (1-12), September 4, 2026 (K)
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15–19, 2027
- Spring Break: April 19-23, 2027
- Last Day of School: June 17, 2026 (tentative)
Vashon Island School District
- First Day of School: August 31, 2026
- Thanksgiving Break: November 26–27, 2026
- Winter Break: December 21, 2026 – January 1, 2027
- Mid-Winter Break: February 15–19, 2027
- Spring Break: April 5-9, 2027
- Last Day of School: June 17, 2027
More School Calendar Resources
This calendar includes the best available information as of July 2026. To check your district’s 2026–2027 school calendar directly, visit your school district’s website for printable versions and updates on early release days and conference schedules.
