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Mt Diablo High School

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Office Hours

Regular Office Hours
Monday - Friday
7:30 am - 4:00 pm

Main Office Number: 
(925) 682-4030, extension 3490

Support Staff Contacts

Absence Reporting

If your child is going to be absent, please contact the Attendance Office at (925) 682-4030 ext. 3445


Sign into the HomeLink Parent  Portal to check student grades, test scores, attendance, as well as other contact and registration features.

If you haven't activated your account yet, contact the front office at 682-4030 x3490 for your verification code. Click here for instructions to create your Homelink account.

Work Permits

To obtain a work permit, download this Request for Work Permit form or pick one up from the front office, complete it and return it to the office.

We will send it to the District Office for processing and they will call you at the number on your form when the permit is ready to be picked up from the District Office.


Please follow the instructions below to obtain or have transcripts sent. 

Bell Schedule 8/11 & 8/12

The school year starts off with 6 period days. Peak Hours begins on 8/18. 

Bell Schedule

Senior Picnic

Boomer s

Hey Seniors!!!! Get ready to start off your final year of high school with your first Senior event on Friday, September 16, 2022 at Boomer's!!! Tickets go on sale on August 1 and end on September 7. Save money with an ASB membership and buy your tickets as early as possible!!! Don't miss out. 

c:o 2023 Senior Picnic.pdf (PDF)

Student Activities

Buy your tickets to student events as early as possible to save money. Tickets go on sale August 1.

Buy an ASB Membership and save even more!

2022 Homecoming Dance.pdf (PDF)

2023 Senior:Junior Prom.pdf (PDF)

2023 Yearbook

Ordering for the 2023 Yearbook is located on the link below. Ordering can be done online or you can send in your orders to directly to Lifetouch using ID code 14790123.

ORDER SOON! Prices go up after October 31!!!

2023 Yearbook Ordering.pdf (PDF)

School Calendar
MDUSD YouTube Channel

Subscribe to the MDUSD YouTube channel!

Coffee with the Principal

ParentSquare logo
Parents/Guardians, be sure to activate your ParentSquare account so that you get the latest news and information from MDHS! Sign up using your e-mail address that you provided during registration.

MDUSD Parent Information Packet

The 2021-22 Parent Information Packet (PIP) includes a variety of important information for parents and guardians regarding Districtwide expectations, resources and forms.   The PIP is currently available online in English and the Spanish version will be available shortly.  Please visit the Student Services Department page.

You may also view the PIP here.