It’s not exactly news that the people making the most money live in cities. Metropolitan areas offer access to labor, infrastructure, and capital. In turn, corporations base their major offices and highest paying roles in those areas.
Unfortunately for corporations, once they plant roots in a city it’s extremely difficult and costly to move. For an individual however, the cost to move is de minimis, especially if you negotiate a relocation package (which you absolutely should; a post for another day). Most people really undervalue the leverage this creates in favor of the individual. Failing to understand this leverage can easily cost you a million dollars over the course of your career.