Choropleth Map

Regions are colored by a variable. Be careful with your color choices, as they can quickly change what the map shows.

Choropleth Maps and Shapefiles in R

Fill those empty polygons with color, based on shapefile or external data.

Interactive: How Americans Get to Work

The way that people get around can say a lot about how a place is made up. Here's an interactive map that shows how people get to work in America.

Relationship Status Geography

Some places attract young singles, whereas others attract married couples and families. I was curious how this varied across the country, so I mapped it.

The Most Regional Names in US History

It was a challenge to choose a name for my son, someone who…

Average commute times mapped

The United States Census Bureau just released county-level commute estimates for 2011, based…

How to Make an Interactive Choropleth Map

When presented with a static graphic, it can be useful to see specific values after you see overall patterns. This tutorial shows you how to add simple interactions to a choropleth map so you can get specifics for regions.