I get A LOT of questions from high school students and beginning undergraduates about career opportunities and income range for physics degree holders. I see this question being asked all the time on various online forums.
So it is appropriate to point out that the American Institute of Physics (AIP) has one of the most, if not the most, extensive data collected to address such question. They have a website specifically dedicated to answer this often-asked question (and other questions). They have everything that range from the amount of money a fresh undergraduate degree holder might make when compared to other subject areas, to where should one go to school, to writing a resume.
So for students who are trying to find answers to such questions, this might be a good place to start.