Density Map of 4-year Colleges in the Continental U.S.

I was recently working with the IPEDS dataset, which is a very interesting collection of information on all of the postsecondary institutions in the US. I was surprised to see data on over 7000 schools, most of which I had never heard of. This inspired me to create a visualization of all the schools there are in the US and where they are located. The best way I could think of to visualize this is a contour plot where instead of elevation the metric is density of colleges at each point in the US.

Here’s a screencap of the resulting visualization:

See it in HTML form at: