Mount Diablo Unified School District: 2025-26 School Calendar

Complete calendar for all MDUSD schools with important dates, breaks, and holidays. Keep scrolling for the full schedule or sync it directly to your phone.

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.

January 2026

2 events
Holiday - No School

Martin Luther King Jr. Day - No School

February 2026

1 event
Holiday - No School

Presidents Day - No School

March 2026

1 event
Holiday - No School

Spring Break Begins

April 2026

1 event
return

Students Return from Spring Break

May 2026

1 event
Holiday - No School

Memorial Day - No School

June 2026

1 event
last-day

Last Day of School

Tired of Manually Tracking Dates? 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...

The Solution: An Auto-Updating MDUSD Calendar for Your Phone

Stop the scramble. Our managed calendar service syncs every MDUSD date directly to your phone - including last-minute changes. Just $9.99 for peace of mind all year.

🔄 Auto-Updates When MDUSD Changes

When Mount Diablo Unified School District changes dates, we update your calendar automatically. You do nothing.

📱 Syncs to All Your Devices

Works on your phone, tablet, computer, and smartwatch. Anywhere you have Google Calendar.

⏰ Never Miss Early Dismissals

Specific early dismissal days clearly marked with custom notifications. Never be caught off guard.

📋 Everything Included

All holidays, breaks, teacher planning days, grading periods, and early dismissal days.

👨‍👩‍👧‍👦 Perfect for Co-Parents

Share custody? Both parents can stay synchronized with the school schedule.

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How the MDUSD Google Calendar Sync Works

1

Purchase

Get instant access through our secure Etsy shop. Takes 30 seconds.

2

Provide Gmail

We'll send you the calendar invitation within 8 hours (usually much faster).

3

Accept Invite

One click and the MDUSD calendar appears in your Google Calendar.

4

Breathe Easy

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⚡ Setup Takes Less Than 2 Minutes

Stop manually checking the MDUSD website. Get every date automatically delivered to your phone's calendar.

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What Concord Parents Are Saying

★★★★★
"This has been a lifesaver! No more missing early dismissal while stuck in the Caldecott Tunnel."
— Jennifer M., Pleasant Hill, CA
★★★★★
"Perfect for our East Bay dual-commute family. Both parents get the same Northgate High alerts."
— Carlos R., Concord, CA
★★★★★
"Finally! No more scrambling when BART delays hit and it's conference day at Gregory Gardens."
— Sarah L., Clayton, CA

Complete 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

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.

$9.99View Calendar→
📍

Walnut Creek

Walnut Creek School District

Auto-updating calendar for WCSD 2025-26 school year.

$12.99View Calendar→

📍 California Family?

Moving between districts or have children in different counties? Each district calendar is separate, but you can subscribe to multiple calendars to keep track of all your children's school schedules in one place.

Frequently Asked Questions about the 2025-26 MDUSD Calendar

Is this the official MDUSD calendar?

Yes! We source our data directly from Mount Diablo Unified School District's official 2025-26 calendar releases to ensure accuracy.

Does it include all MDUSD schools?

Absolutely. This calendar covers all schools in the district, from Concord and Clayton to Pleasant Hill and the surrounding areas.

Will it sync with my phone calendar?

Yes, it works with iPhone, Android, Google Calendar, and Outlook. It's perfect for busy East Bay parents who need instant updates on the go.

What is the Aeries Parent Portal?

The Aeries Parent Portal is the official system MDUSD uses for grades and attendance. Our calendar sync complements it by placing all important dates directly into your personal calendar for easier long-term planning.

How are air quality / wildfire days handled?

Decisions on school closures due to poor air quality from wildfires are made on a case-by-case basis by the district. Our calendar sync service will update automatically if any such closures are announced.

When is the first day of school for MDUSD?

The first day of school for the 2025-26 school year is Wednesday, August 6, 2025.

When is Spring Break?

Spring Break is scheduled from Monday, March 30, 2026, to Friday, April 3, 2026. Students return on Monday, April 6, 2026.

Are there any other long breaks?

Yes, Winter Break is from December 23, 2025, to January 5, 2026. There is also a Thanksgiving Break from November 26 to November 28, 2025.

What are the Teacher Planning Days?

These are days when students do not have school, allowing teachers to plan. For the 2025-26 year, the main teacher planning day is on Monday, October 13, 2025.

When is the last day of school?

The last day of school for the 2025-26 school year is Friday, June 5, 2026.

Ready for a Stress-Free School Year?

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🔒 Secure checkout via our official Etsy store

✅ Instant setup • ✅ Works all year • ✅ Auto-updates • ✅ 5-star rated