Choropleth Map

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

Tutorials and Guides

Examples

Oldest and Youngest, by State

States aren't uniformly young and old. Well, other than Maine. This is the breakdown by age group and regions.

Where people are moving in the U.S.

Based on migration data recently released by the IRS, Nami Sumida for the…

Map of donut federations

In a fun one by Alyssa Fowers, for The Washington Post’s Department of…

Hypothetical map that shows how access changes if more states ban abortion

Based on analysis by economics professor Caitlin Myers, FiveThirtyEight provides a hypothetical map…

Map of homes bought with all cash

For The Washington Post, Emmanuel Martinez, Kevin Schaul and Hamza Shaban mapped the…

Carbon footprint in the city versus the suburbs

Bringing it down the Census tract level, Nadja Popovich,┬áMira Rojanasakul and Brad…

Splitting the US population evenly, with arbitrary shapes

By Engaging Data, this interactive map shows various splits of the United States…

Where restaurant chains dominate

Researchers Xiaofan Liang and Clio Andris estimated the percentage of restaurants that are…

Country-wide housing shortage

Emily Badger and Eve Washington for NYT’s The Upshot show how the housing…

Where there is more livestock than people in the United States

The United States Department of Agriculture provides annual inventory data on livestock, crops,…

Interest levels for political issues mapped

To estimate public interest in the many political issues across the United States,…

Map of Russian gas exports

Speaking of Russian gas, Josh Holder, Karl Russell and Stanley Reed for The…

Delaying motherhood

The New York Times mapped birth rates, which are down almost everywhere, especially…

Where People are Married and Not

About 48% of the U.S. population aged 15 and older is married. I was curious if there were regional variations, so I mapped it.

Where coronavirus cases are peaking

With this simple choropleth map, Lauren Leatherby for The New York Times shows…

Design your own election scenario

As we have seen, small shifts in voting behavior of various demographic groups…