This is fun to look at!

Computer and Information Technology Occupations:

Computer Programmers: $86,550

Software Developers: $107,510

Web Developers: $73,760

I think the difference in pay is because they state Web Dev requires an associates degree, the other two a bachelor's.

Of course, this data is generalized. I am an SWE, with an associates. I make a little more than their "Software Developer" role. Also suggests there may be a lot of devs who don't respond to salary threads.