The international land border between the United States and Canada is the longest in the world at almost 8,900 kilometers. It includes the border between Canada and the continental U.S. as well as the border between Alaska and northern Canada.
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WorldAtlas. (August 10, 2019). Length of longest international land borders worldwide (in kilometers) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 15, 2026, from /statistics/1103985/border-length-between-countries/
WorldAtlas. "Length of longest international land borders worldwide (in kilometers)." Chart. August 10, 2019. ÌÇÐÄÆƽâ°æ. Accessed July 15, 2026. /statistics/1103985/border-length-between-countries/
WorldAtlas. (2019). Length of longest international land borders worldwide (in kilometers). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 15, 2026. /statistics/1103985/border-length-between-countries/
WorldAtlas. "Length of Longest International Land Borders Worldwide (in Kilometers)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 10 Aug 2019, /statistics/1103985/border-length-between-countries/
WorldAtlas, Length of longest international land borders worldwide (in kilometers) ÌÇÐÄÆƽâ°æ, /statistics/1103985/border-length-between-countries/ (last visited July 15, 2026)
Length of longest international land borders worldwide (in kilometers) [Graph], WorldAtlas, August 10, 2019. [Online]. Available: /statistics/1103985/border-length-between-countries/
