Which country has the longest coastline in the world?

Canada has the longest coastline in the world, extending over 202,080 kilometers. This extensive coastline is primarily due to Canada’s numerous islands and large number of inlets, bays, and peninsulas along the Atlantic and Pacific Oceans, as well as the Arctic Ocean. The geographical positioning of Canada, with its many maritime borders and varied coastal configurations, contributes significantly to this length.

The other countries listed do have long coastlines, but they do not surpass Canada’s. Russia, while it has the longest land border and a significant amount of coast, is largely defined by its continental mass rather than coastal features alone. Australia and the United States also have extensive coastlines, but they do not match the sheer length that Canada boasts. Understanding the unique geography of Canada—such as its many islands and coastal regions—helps clarify why it holds the record for the longest coastline.