Graphic design can be a great course of study. It may also require continuing education to keep you fresh. You'll find that many local community colleges and smaller colleges offer continuing education. Make sure that you determine the right school for this need.
Graphic design courses are offered to some degree on the web. When you get to the point of needed to take on hands on learning, though, you will want to make sure that the courses are taught in your local areas. Many online schools do offer this benefit to their students.