Most Popular Occupations In The US By Zip Code

What would you guess is the most common job in the USA? Retail? Agriculture? Factory work? While all of those might seem kind of reasonable, the fact is that every area seems to have it's own jobs that are the most common, depending on terrain, social climate, and availability.
The Movoto Real Estate Blog decided to find out where each type of job was the most popular. To do this, they made a colored map of the most common occupations, right down to the most common ones in every zip code.