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If you are interested in enrolling, please click here to complete a brief application. An admissions representative will contact you to schedule an appointment. 




Delta Charter School

(Established 2001)

Delta Charter Elementary School

31400 S. Koster Road, Tracy

Delta Charter High School
31400 S. Koster Road, Tracy

Delta Aerospace/Technology Academy
30 Learning Lane, Brentwood



Delta Charter Online

(Established 2014)

DCO Elementary School

336 Grant Line Road, Tracy

DCO High School
336 Grant Line Road, Tracy

Delta Keys (Adults)

336 Grant Line Road, Tracy

Change to Grant Line Bus Location

Click here to learn about this change. 



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For information on Senior Portraits and ordering your 2014-2015 yearbook please click here


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Mike Smith Assembly


Thursday's assemblies, featuring Mike Smith, will feature a live broadcast by the Delta Charter High School video production arts students.

To view the streaming live event, beginning at 1:30 p.m., select this link


Mike Smith is the founder and Executive Director of THE BAY, which is a skate park and youth center in Lincoln, NE and the founder and Executive Director of Skate for Change, which empowers skateboarders to give back to the homeless in their communities.

He has been working with youth for over a decade and speaks to high school and college students around the nation about being leaders in their community, bullying, and pursuing their passions.

Mike Smith will be speaking to Delta Charter School and New Jerusalem Elementary students on Thursday, October 23rd at our Koster Campus. Leadership students, and student counsel from Delta Charter High and New Jerusalem will have the opportunity to meet with Mike separately.

Check out Mike Smith’s website here

Community Service Opportunity

Astoria Gardens is looking for some high school students to help with their Thanksgiving and Christmas events.

These events will take place on November 15th and December 8



Delta Charter School


Delta Charter Online



Bullying Hotline


Leave message for investigations:
209.830.6363 ext. 2300


Click here to see Delta Charter Schools Anti-Bullying Pledge


Commend a Delta teacher

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