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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

High School Basketball Schedule

Click here to download your copy of the current schedule. 




Office 365 

Students in need of Office 365 may click here and complete the request form. This Microsoft software will be available for students to use while they are enrolled with us.


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

Delta Charter High School Finals Week

Please click here for more information including transportation and scheduling. 

Attention Delta Charter High School Students and Parents! 

Second Semester Schedule Changes

Effective January 5, 2015, school will begin each day at 8:55 a.m. Dismissal will continue to be 4:30 p.m. Mondays-Thursdays, while dismissal on Fridays will change to 3:05 p.m. (The Delta Charter buses will continue to pick up students daily at 8:30 a.m.)

Monday-Thursday Schedule
• Bus pick up: 8:30 a.m.
• School begins: 8:55 a.m.
• Dismissal: 4:30 p.m.

Friday Schedule
• Bus pick up: 8:30 a.m.
• School begins: 8:55 a.m.
• Dismissal: 3:05 p.m.

Brighter Christmas


Delta Charter Leadership Students: Jethro Pestano, Armando Guzman, Vanacy Thompson and Jessica Alfonso have been hard at work helping Mr. Niemi and the Leadership students collect non-perishable foods and toys for Brighter Christmas

Urgent Message and Request

Delta Charter Schools families --

We need your help to ensure that the Delta Charter Schools are able to continue to offer programs such as arts, music, athletics, etc.
Please ...more

The Delta Charter Wrestling Team practices have begun!

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Mr. Pombo and the Delta Charter Wrestling Team are featured in the Tracy Press. Click here to read the article.

Delta Charter School's Newsletter Quick Links

For Delta Charter High School click here 

For Delta Charter Elementary School click here 

For Delta Charter Online click here

For DATA click here 

Delta Charter Schools Important News

Delta Charter High School

  • Dec. 15-19: Finals Week 
  • Dec. 22-Jan. 2: Winter Break 
  • Winter Sports have started: see Mr. Niemi for details
  • March 6: Senior Breakfast 9:30 am
  • Wrestling has begun: see Mr. Pombo for details


  • Dec. 15-19: Finals Week
  • Dec. 22-Jan. 2: Winter Break 
  • Video Production will meet as usual during PLP and Finals Weeks
  • Jan. 5: Students will launch rockets. Winning group receives pizza 
  • Wrestling has begun: see Mr. Pombo for details

Delta Charter Elementary

  • Dec. 17: Winter Program Grades K-5 6:30 pm
  • Dec. 22-Jan 2: Winter Break 

Delta Charter Online

  • Booster Cards for sale in Delta Charter Office
  • Dec. 22-Jan. 2: Winter Break 
  • Feb. 20: 2nd Annual Winter Gala 
  • March 6: Senior Breakfast 9:30 am
  • Wrestling has begun: see Mr. Pombo for details
  • Students are required to wear their IDs and lanyards while they are at school



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

Girls Basketball First Win!

LIVERMORE -- After three tries, the Delta Charter High School girls basketball team earned its first victory of the season with a 59-27 thrashing over Livermore Valley ...more

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Commend a Delta teacher

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