Holiday - No School
Mount Diablo Unified School District: 2025-26 School Calendar
Every MDUSD school day, holiday, and early-dismissal date for 2025-26 — pulled from the official MDUSD calendar so you don't have to.
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At-a-Glance: Key Dates for the MDUSD 2025-26 School Year
Here are the most important dates for Mount Diablo Unified School District. All dates are from the official MDUSD calendar.
May 2026
1 eventJune 2026
1 eventlast-day
Last Day of School
| Date | Event | Type |
|---|---|---|
| ✓Aug 6 | First Day of School | first-day |
| ✓Sep 1 | Labor Day - No School | Holiday - No School |
| ✓Oct 13 | Teacher Planning Day - No Students | No Students |
| ✓Nov 11 | Veterans Day - No School | Holiday - No School |
| ✓Nov 25 | Early Release Day | Early Release |
| ✓Nov 26 | Thanksgiving Break Begins | Holiday - No School |
| ✓Nov 27 | Thanksgiving Break | Holiday - No School |
| ✓Nov 28 | Thanksgiving Break | Holiday - No School |
| ✓Nov 29 | Thanksgiving Break | Holiday - No School |
| ✓Dec 2 | Students Return from Thanksgiving Break | return |
| ✓Dec 23 | Winter Break Begins | Holiday - No School |
| ✓Jan 6 | Students Return from Winter Break | return |
| ✓Jan 20 | Martin Luther King Jr. Day - No School | Holiday - No School |
| ✓Feb 16 | Presidents Day - No School | Holiday - No School |
| ✓Mar 30 | Spring Break Begins | Holiday - No School |
| ✓Apr 6 | Students Return from Spring Break | return |
| May 25 | Memorial Day - No School | Holiday - No School |
| Jun 5 | Last Day of School | last-day |
| Planning ahead? View the 2026-27 calendar → | ||
We typically verify and fix reported errors within 24–48 hours.
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Tired of manually tracking the MDUSD calendar? Never miss an early dismissal again.
We know Concord parents are juggling work, traffic, and school schedules. Here's what we hear every school year:
Tuesday 7:45am
"BART delay at Concord station AND teacher workday? Stuck between Highway 4 backup and no childcare!"
Wednesday 2:30pm
"Early release at Bancroft Elementary but I'm in SF for work - scrambling for Walnut Creek pickup!"
Thursday morning
"Is Northgate High closed today? Checking three apps while stuck in Pleasant Hill traffic..."
Friday 3pm
"Conference day at Mt. Diablo Elementary - but which parent can escape the East Bay commute grind?"
The reality: Checking PDFs and the MDUSD website repeatedly is exhausting. There's a better way...
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Share invites, push-sync, and the verification workflow — explained in plain language, with diagrams.
Learn how it worksComplete MDUSD School Coverage
This calendar covers all Mount Diablo Unified School District across all regions. Whether your child attends elementary, middle, or high school, this is the official district-wide calendar that applies to every MDUSD school.
🏫 Concord Core
Elementary Schools:
Bancroft Elementary School
Mt. Diablo Elementary School
Monte Gardens Elementary School
Ayers Elementary School
Silverwood Elementary School
Mountain View Elementary School
Ygnacio Valley Elementary School
Sun Terrace Elementary School
El Monte Elementary School
Rocketship Futuro Academy
Middle Schools:
Pine Hollow Middle School
El Dorado Middle School
Oak Grove Middle School
High Schools:
Concord High School
Ygnacio Valley High School
Mt. Diablo High School
🎓 Pleasant Hill & Walnut Creek
Elementary Schools:
Sequoia Elementary School
Valhalla Elementary School
Strandwood Elementary School
Pleasant Hill Elementary School
Gregory Gardens Elementary School
Fair Oaks Elementary School
Springhill Elementary School
Hidden Valley Elementary School
Highlands Elementary School
Eagle Peak Montessori
Middle Schools:
Pleasant Hill Middle School
Valley View Middle School
M.H. Stanley Middle School
High Schools:
College Park High School
Las Lomas High School
Northgate High School
Acalanes High School
Contra Costa School of the Performing Arts
📚 North County (Clayton & Martinez)
Middle Schools:
Diablo View Middle School
Martinez Junior High School
High Schools:
Clayton Valley Charter High School
Alhambra High School
🌟 Bay Point & Pittsburg Areas
Elementary Schools:
Rio Vista Elementary School
Bel Air Elementary School
Shore Acres Elementary School
Delta View Elementary School
Los Medanos Elementary School
Foothill Elementary School
Marina Vista Elementary School
Willow Cove Elementary School
Stoneman Elementary School
Parkside Elementary School
Middle Schools:
Rancho Medanos Junior High School
Martin Luther King Jr. Junior High School
Hillview Junior High School
Riverview Middle School
Golden Gate Community Charter School
High Schools:
Pittsburg Senior High School
Black Diamond High School
Antioch High School
Deer Valley High School
Freedom High School
One Calendar for All MDUSD Schools
Important: Serving the entire Mount Diablo Unified School District community across Contra Costa County with 30 elementary schools, 10 middle schools, and 5 comprehensive high schools spanning from Concord to Clayton, Pleasant Hill to Bay Point.
📋 Official Data Sources
All calendar data is sourced directly from the official 2025-26 academic calendars published by Mount Diablo Unified School District.
✓Calendar approved by MDUSD School Board
✓Updated when district makes changes
✅
Verified Accuracy
Cross-referenced with official MDUSD publications
🔄
Real-Time Updates
When MDUSD changes dates, we update immediately
📊
Complete Coverage
Every holiday, break, and early dismissal included
Last updated on
Other California School Districts Available
Looking for another California school district? We also provide calendar sync services for other major districts across California.
📍
Los Angeles
Los Angeles Unified School District
Auto-updating calendar for LAUSD 2025-26 school year.
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San Diego
San Diego Unified School District
Auto-updating calendar for SDUSD 2026-27 school year.
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Walnut Creek
Walnut Creek School District
Auto-updating calendar for WCSD 2025-26 school year.
Frequently Asked Questions about the 2025-26 MDUSD Calendar
When is the first day of school for MDUSD in 2025?
The first day of school for Mount Diablo Unified School District is Wednesday, August 6, 2025.
When is the last day of school for MDUSD 2025-26?
The last day of school for the 2025-26 school year is Friday, June 5, 2026.
When is Winter Break for MDUSD 2025-26?
Winter Break begins Tuesday, December 23, 2025. Students return to school on Tuesday, January 6, 2026.
When is Spring Break for MDUSD 2025-26?
Spring Break begins Monday, March 30, 2026. Students return to school on Monday, April 6, 2026.
When is Thanksgiving Break for MDUSD?
Thanksgiving Break runs Wednesday, November 26 through Friday, November 28, 2025. There is also an early release day on Tuesday, November 25. Students return to school on Monday, December 1, 2025.
What are the non-student days in fall 2025 for MDUSD?
MDUSD observes Labor Day (September 1), Veterans Day (November 11), and has a Teacher Planning Day on Monday, October 13, 2025 when students do not attend school.
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