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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. 


Thank you, 

Delta Charter Administration


Delta Charter Schools


Delta Charter

(Established 2001)

Delta Charter K-8

31400 S. Koster Road, Tracy

Delta Charter 9-12
31400 S. Koster Road, Tracy

Delta Aerospace/Technology Academy
30 Learning Lane, Brentwood


Delta Charter Online

(Established 2014)

Delta Charter Online K-8 

336 Grant Line Road, Tracy


Delta Charter Online 9-12
336 Grant Line Road, Tracy

Delta Keys

336 Grant Line Road, Tracy



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Bullying Hotline


Leave message for investigations:
209.830.6363 ext. 2300

Special Message for Delta Charter High School (Koster Road) students, families


Greetings Delta Charter High School students and parents,

I wanted to thank you for your patience and understanding as we transition to a new model here at Delta Charter School.  Delta Charter School is committed to providing the best possible educational opportunities to ensure that our students are prepared for college, trade school, or to enter the workforce.  We have worked over the last few years to strengthen the academic rigor in our and now have taken the next step to provide the best educational opportunities for your child to be successful in the years ahead.

As you are aware, our 6-10th grade classes changed to a classroom-based model over the summer.  We are extremely excited to announce that we will now operate entirely as a classroom-based model for grades 6-12, in fact, K-12, at the Koster Road facility.  Your child will receive a new schedule on Tuesday, September 2, to reflect these changes.

The new schedule will be viewable through the student portal and first period rosters will be posted in the office windows, the campus kiosk, and throughout the Delta Charter Koster Road campus.  Students should go directly to their first period classes and will receive their new schedule.

Classes will begin at 9 a.m. and dismissal will be at 4:25 p.m.

Please note that our Friday schedule will be changing to 10 a.m.-2:45 p.m.  Our bus pickup times will be pushed back one hour to 9:30 a.m. for both Tracy Blvd. and Grant Line stops.

Attendance is now required and will be taken during each period.  If your child is absent, please call the office at (209) 830-6363 to report the absence.

We have an extremely exciting year planned, with our first school rally Thursday, September 4. I understand the frustration these changes may have caused you and your student but they only help to enhance the education that your child receives here at Delta Charter School.

If you have any questions or concerns I would be more than happy to meet with you to discuss your child’s education.  I can be reached via email at gvierra@njes.org or by calling the school at (209) 830-6363. 

Thank you,

George M. Vierra

Principal, Delta Charter High School


Read about the upcoming additions to our Koster Rd. campus here!

For information on High School Completion/Escuela Prepartoria please click here

Interested in running for a student body office??!!

Be a part of creating an exceptional school environment at Delta Charter! Turn in your intent today. Please click here to download the ASB Intent ...more

Important Information All Seventh Graders

Please Click Here


Delta Charter School

Household (Parent/Guardian)

Student (Delta K-8/Delta Charter High)


Delta Charter Online School

Household (Parent/Guardian)

Student (Delta Charter Online)

Delta Keys Student

Parents encouraged to visit

The Delta Charter Schools encourage parents of enrolled students to visit and observe classes at any time. No appointments are necessary. Only requirement is to check in at ...more


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

Office 365

If you are a student and are in need of Office 365, please click here and complete the request form. This will be available for you to use while you are a student enrolled with the New ...more


Commend a Delta teacher

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