Part III: A divided United States of America

In previous post, I outlined the winning candidate for the 2016 election. Now we are going to analyze margins of the Trump winning, or the percentage difference between votes for GOP and Democrats.

Let’s first plot the percentage difference (or margin) of votes between GOP and Democrats in each US county:

As the figure show, most of the map is in GOP territory, especially in regions away from the US coast. Now we are going to detail this data a little bit better:

The figure shows most of the contiguous United States with a difference on votes greater than 25% between the GOP and the Democrats. This means most of of the United States is solidly in the political left or right.

A divided United States of America.

The data is also clear in relation to the prosperity of Democratic and GOP counties. The Democratic counties have a little more than 2 times the per-capita gross domestic product of GOP counties (see Figure below with data from 2015). The unemployment rate is relatively similar but lower in GOP counties, while international migration, a common culprit of the GOP nowadays, is greater in the Democratic counties.


Analyzing data further, with an even more drastic difference of 50% in votes between GOP and Democrats, results favor clearly favor Democratic counties. While the unemployment rate is roughly similar to the data with 25% difference, the per-capita gross domestic product is about 2.5 times grater in Democratic counties (see below with 2015 data).



In further Blog posts I hope to provide insight into the politically divided country, and why this polarization has made some people think the US democratic-capitalistic system is in crisis.



Update: The sources for these analyses are here, here, and here.