Regions are colored by a variable. Be careful with your color choices, as they can quickly change what the map shows.
Tutorials and Guides
How to Spot Visualization Lies
Many charts don't tell the truth. This is a simple guide to spotting them.
Making an Interactive Map with Category Filters
Let readers focus on the regions they care about to make their own comparisons and conclusions.
Choropleth Maps and Shapefiles in R
Fill those empty polygons with color, based on shapefile or external data.
Choosing color palettes for choropleth maps
Choropleth maps, the ones where regions are filled with colors based on data,…
Mapping death in America, 1980 to 2014
Nationwide mortality data relies on death certificates, and when cause of death is…
Republicans’ health care plan compared against Obamacare
Based on estimates from the Kaiser Family Foundation, Kevin Quealy and Margot Sanger-Katz…
Mapping the Most Common Races
Select one or more races for a quick comparison. Counties are colored by the most prevalent.
Out-of-state commuters mapped
In a straightforward map, Seth Kadish shows the percentage of county residents who…
Interactive: When Do Americans Leave For Work?
We don't all start our work days at the same time, despite what morning rush hour might have you think.
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.