The purpose of visualization Zip code against Median Household Income is to see if there is any trends to them, as Zip codes of similar geological locations are often quite close to eachother numerically as well.
Additional purpose for graphs like this is for users to recognize which approximate zip code they generally are looking to move to.
With this graph, there seem to not be any particularly significant piece of information that stands out. Which means there is not a strong correlation between clusters of zip code and income.
What about Zipcode and Labor Force then?
The graph shows that these two features have some sort of correlation as number of labor force tend to be related to similar zip code numbers. Which makes sense considering that Zip codes of similar geological locations are often quite close to eachother numerically as well.
additioanlly, this graph can be used to infer the population of these areas and users may use it as reference.
Here's a correlation heatmap that may be of use for general investigation of correlations between variables.Â
Top 10s are just quick and easy way to recognize the zip codes that may be worth looking into