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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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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

Student/Parent Handbook


Click 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 ...more

Bullying Hotline


Leave message for investigations:
209.830.6363 ext. 2300


K9 Detection Assembly for Delta Charter 6-12 grades

Greetings Delta Charter Students and Families,

Delta Charter Schools has recently entered into an agreement with Interquest Detection Canines, ...more

Mike Smith Assembly


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, ...more


The Delta Online students are collecting new and used shoes during the month of September. The donated shoes will be given to those in need. Our goal is to collect 25,000 pairs by September 27th. We ...more

Read about the upcoming additions to our Koster Rd. campus 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

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

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

Important Information All Seventh Graders

Please Click Here

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 ...more

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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