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.
A good way to see how well a graphic design course of study will play in a school is to visit the classroom for a day or even just a period. Find out if the school allows this and enjoy seeing how the class is taught. Chances are good that you'll know if the school is right for you or not.