7 Countries with the Longest Coastlines in the World

In this article, we will list 7 countries with the longest coastlines in the world. If you want to read our discussion about US coastal counties, ports, and the shipping industry in the world, go to 20 Countries With the Longest Coastlines in the World. 

7 – Japan 

Length of Coastline – 29,751 KM

Japan is 7th on our list of the 20 countries with the longest coastlines in the world. Its coastline is complex due to volcanic origins and deep water troughs resulting from the country’s tectonic plate positioning. The country’s archipelago’s underwater topography plays a crucial role in creating coastal upwellings and supporting unique marine life rarely seen elsewhere.