How the World’s Smartest Cities are Being Built

Cities are using more food, energy, and materials than ever before. See the technologies being used by the world’s smartest cities to combat these issues. Read more

Animation: Population Pyramids of the 10 Largest Countries

The world’s 10 most populous countries may all have many millions of people, but their future growth prospects are very different. Read more

Charts: How Americans Differ by Age

These three charts show the age distribution of the U.S. population, further broken down by employment status, education, and marital status. Read more

Animation: The Rapidly Aging Western World

How fast are countries in Europe and the Americas aging? These colorful animations show how the median age is projected to change up until the year 2060. Read more

Animation: U.S. Population Pyramid From 1980-2050

Watch the generations fly by in this animation showing the changing age composition of the U.S. population. Read more

Over the Next Year, Germany Will Hit a Scary Demographic Milestone

By 2019, the country will have a higher 60+ year old population than its 30 and under crowd. This series of charts shows the demographic outlook for Germany. Read more

Chart: The Population Rank of Every U.S. State Over 100 Years

How have state populations changed over a century? This bump chart shows the population rank of every state in the United States over 1917-2017. Read more

Animation: Human Population Growth Over All of History

This animation captures 200,000 years of human population growth – see everything from the invention of farming to the impact of the Black Death. Read more

Video: The 5 Largest Cities Throughout the Course of History

See how the list of the world’s five largest cities has changed between 3000 BC until today, and how it’s expected to shift as we close out the 21st century. Read more

Ranked: European Countries by the Average Age Adults Move Out

The average age for adults to move out in the top seven countries—all from the same region—is either at or above 30. Read more