Front-end salaries
The national average in the U.S for a front-end developer is $75k.
An experienced front-end developer potentially can live wherever they want (i.e. work remotely) and make over $150k a year (visit angel.co, sign-up, review front-end jobs over $150k).
image source: http://intersog.com/blog/chicago-tech-salary-guide-2015/