Population density maps are no new thing. They’re used all the time and updated every year to accurately reflect any changes in population. In every map, you can see that cities have a higher density than suburban areas, and suburban areas are more populated than rural areas. Nowadays, it’s hard to imagine what cities looked like before they were developed, but this animated population map will help give you an idea of how the United States has grown over the last two centuries.
The animated map, created by Nathan Yau, goes as far back as 1790 and displays the changes in population density by decade up to 2015. Yau created the animation based on the statistics that were available to him and only depicts data for the United States, but it’s probably safe to say that there were similar changes across the globe as countries advanced and developed.
Looking at the animation, you can see how sparse and spotty many territories were in the first century, with entire areas completely empty until settlers came and began to populate the area.
Check out the map and the changes in population density below:
[Via: Flowing Data]