According to U.S. Bureau of Labor Statistics, 15-1134 Web Developers "[d]esign, create, and modify Web sites. May integrate Web sites with other computer applications. May convert written, graphic, audio, and video components to compatible Web formats by using software designed to facilitate the creation of Web and multimedia content." 
School subjects include (but are not limited to): HTML, WFL, XML. Of course, much more will be covered in the degree. Each of the listed schools is likely to have different courses, so you are encouraged to check each of school's Web sites for specific program information before deciding on a one.
There are two careers that web designers can follow; they can be Web Content Developers (who specialize in graphic design), or Web Application Developers (who specialize in programming).
Available Jobs: There are many jobs to be found online by companies looking for someone interested in developing Web design projects or building e-commerce Web sites. Jobs are not hard to find. A quick search on any Internet search engine will reveal several Web design jobs.
"What does it cost to become a web designer, and what's the average web designer salary [...] While the cost for online web design degrees can vary widely (from around $7,500 for some Certificate programs to over $50,000 for Master's and higher-level degrees), the salary of a web designer with a degree can increase by as much as 20% in the first year over that of someone without a web design degree."