Adult High School Diploma

Adult students can earn credits toward completion of a high school diploma under the guidance of an instructor and support staff. Coursework is offered in small group instruction, computer aided instruction, and individual study. A cap and gown graduation is held on the Mt. SAC campus in June to honor students receiving high school diplomas.

Credits for the required courses and/or electives may be awarded in the following ways:

  • Adult School Courses (Accredited institutions only)
  • Previous High School Courses (Accredited institutions only)
  • Work Experience (Must be verified)
  • College Credit (Accredited institutions only)
  • Training Programs (Accredited institutions only)
  • Out-of-Country/International Schools (transcripts must be evaluated by an approved evaluation service)

How the Mt. SAC Adult Diploma Program Evaluates High School Transcripts.

General information:

  • 180 credits required to graduate (click here for requirements)
  • Work experience credit given for electives or vocational education
  • No homework, all coursework completed in class
  • Average completion rate: approximately 75-80 hours per 5 credits
  • You must be 18 years old or 60 days from your 18th birthday or past your graduation date to enroll
  • Must attend a mandatory orientation and obtain a Mt. SAC ID before starting class
  • Two assessment tests, taking approximately 1 hour each needed before starting class

For information call (909) 274-4937 
Fax Number: (909) 468-3934 or e-mail

Monday - Thursday 8:30 a.m. - 8:30 p.m. 
Friday 8:00 a.m. - 4:30 p.m.

Monday - Friday 9:00 a.m. - 1:00 p.m. 
Monday - Thursday 4:30 p.m. - 8:30 p.m. 
Students may attend both day and evening classes

Summer Hours May Vary

Adult High School Diploma Student Guide 


Mt. San Antonio College

1100 N. Grand Ave., Walnut, CA 91789
Phone: 909.274.7500 • VPhone: 909.895.6634
For emergencies, call Campus Police: 909.274.4555 Ι Text-A-Tip: 909.274.9560

Copyright © 1989- • Mt. San Antonio College. All Rights Reserved.


All college-printed materials and Web info are available in alternative formats upon request.
Contact Disabled Student Programs & Services: 909.274.4290 or TTY 909.594.3447.

The 504/508 ADA Coordinators are located in Bldg. 4–1460 and can be contacted at 909.274.4225.