Choropleth Map

                                           http://www.colocarto.com/custom-thematic-maps

This is a choropleth map. It shows with shading and coloring the different median household incomes by state. Choropleth maps are great for explaining demographic measurements and patterns. By observing this map, we can see, that Arkansas, Mississippi, and West Virginia have the lowest median household income of all the continental United States. Conversely, we can see that there are many states in the Northeast which have the highest median household income.