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Adult Education

Earn Your GED or

High SchooL Diploma

Tuolumne County Superintendent of Schools offers individualized programs at several locations to enable adult students to complete their high school diplomas or earn their GED. Classes are open to all persons 18 years of age and older.

TCSOS Adult Ed Registration

If you would like to register for the TCSOS Adult Education Program, please fill out the registration form, and someone will contact you within 24 hours.

Adult Education Contacts

Colleen Whitlock
Associate Superintendent, Student Support Services

High School


The high school diploma is evidence of completing the primary education required to graduate from a California public high school.

Students must complete specified state and local graduation requirements. These requirements should be viewed as minimums and support for the regulations specified by the local school boards.

Tuolumne County Superintendent of Schools offers individualized programs at several locations to enable adults to complete their high school diplomas. Classes are open to all persons 18 years of age and older.


Graduation Requirements

Additional Requirements

In addition to the 130 required units, students earning a high school diploma through TCSOS must complete 10 hours of service credits. These hours are individualized for each student. Students must complete a minimum of five (5) credits through the TCSOS adult education program and must complete Algebra 1 (Ed Code 51224.5).

Students may earn some of these credits through military experience or previous work experience. An adult education counselor will assist students in determining the specific requirements of each program. Graduation requirements at TCSOS may change pending approval by the Board of Education. Courses in GED preparation and Elementary Basic Skills do not earn high school credits for the diploma.



The Tuolumne County Superintendent of Schools (TCSOS) Adult Education program partners with Columbia College to provide adult education students with dual enrollment. Dual enrollment allows our students to attend community college tuition-free (up to 11 units per term), provided they are actively pursuing a high school diploma or high school equivalency with an adult school.

Academic & Career


We provide academic and career counseling and offer support as students transition from our Adult Education program to college, technical education, or workforce entry. We meet with every incoming student during the initial registration session to review program requirements and to discuss their education plan. We also help students identify pathways to higher education during the education planning session.



The High School Equivalency Test (HSE) test is a national test that may be taken in California by persons who are eighteen years of age or older, or who meet specific criteria for testing at age seventeen

Ten Reasons to Join Our GED Preparation Program

  • It’s Free!
  • We pay for your GED test if you are enrolled with us.
  • GED testing is done here in our office.
  • Dual enrollment with Columbia College is available with free tuition.
  • You set your pace!
  • Referrals to community agencies. 
  • It’s never too late to get a fresh start.
  • One-on-one instruction and support.
  • Conveniently located.
  • You can do anything!


Multiple Locations


Our Adult Education services are offered at several locations throughout Tuolumne County. View the map to find the most convenient location.

Administrative Offices

Tuolumne County Superintendent of Schools
175 Fairview Lane
Sonora, CA 95370
Office Hours
Monday – Friday: 8 AM – 5:00 PM

Tuolumne County Superintendent of Schools

Greater Valley Conservation Corp

Enrichment Center

Day Reporting Center

Lambert Center