This raises the question: which nations and their populations are the most vulnerable to the risk of flooding around the world?

Using data from a recent study published in Nature, Visual Capitalist's Niccolo Conte and Christina Kostandi created this graphic that maps flood risk around the world, highlighting the 1.81 billion people directly exposed to 1-in-100 year floods. The methodology takes into account potential risks from both inland and coastal flooding.

Asian Countries Most at Risk from Rising Water Levels

Not surprisingly, countries with considerable coastlines, river systems, and flatlands find themselves with high percentages of their population at risk.

The Netherlands and Bangladesh are the only two nations in the world to have more than half of their population at risk due to flooding, at 59% and 58%, respectively. Vietnam (46%), Egypt (41%), and Myanmar (40%) round out the rest of the top five nations.

Besides the Netherlands, only two other European nations are in the top 20 nations by percentage of population at risk, Austria (18th at 29%) and Albania (20th at 28%).