Determine what class or course of study you wish to take and if you want for-credit courses or if pass/fail classes are sufficient for your needs. Some programs, such as the GED, offer certification you will want to acquire.
Contact your county's school system and any area community colleges. Most of the time, adult education classes are held at a local school or the main location of the board of education.
Check with educational departments on military bases. Most have adult ed programs, either through the government or they play host to programs from the local board of education.
Discover local senior centers that often host adult education classes at their facilities. Check with the AARP as they offer several free courses for the over-50 crowd and information about other possibilities such as the "One Day University."
Research online programs. Use some caution with this option as there are many so-called adult education programs online and some of them are simply scams. Check with the Better Business Bureau in the town where they say they do business. Ask them to provide you with names and email addresses of past graduates with whom you can speak about the company and their courses of study.
Brush up on your study skills. To complete certain programs of adult education study, you may need to do things you've not done in years such as write essays. There are several websites that can help make relearning the basics fun and painless.