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Countries by land border length Antarctica and countries in purple are those without any land border. This list gives the number of distinct land borders of each country or territory, as well as the neighbouring countries and territories. The length of each border is included, as is the total length of each country's or territory's borders. [1]
The international border between Canada and the United States is the longest in the world by total length. [a] The boundary (including boundaries in the Great Lakes, Atlantic, and Pacific coasts) is 8,891 km (5,525 mi) long.
For each country or territory, the total length of the land borders and the total surface area are listed, as well as the ratio between these two parameters. A high border/area ratio means that the country or territory has a long border compared to its surface area. A border/area ratio of zero indicates that the country has no land borders.
The international border between Canada and the United States, with Yukon on one side and Alaska on the other, circa 1900-1923 [1]. The borders of Canada include: . To the south and west: An international boundary with the United States, forming the longest shared border in the world, 8,893 km (5,526 mi); [2] (Informally referred as the 49th parallel north which makes up the boundary at parts.
The Mexico–United States border extends 3,145 kilometers (1,954 miles), in addition to the maritime boundaries of 29 km (18 mi) into the Pacific Ocean and 19 km (12 mi) into the Gulf of Mexico. [3] [4] It is the tenth-longest border between two countries in the world. [5]
Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water. This list includes entries that are not limited to those in the ISO 3166-1 standard, which covers sovereign states and dependent territories.
The United States has notably increased measures taken in border control on the Canada–United States border and the United States–Mexico border during its War on Terrorism (See Shantz 2010). One American writer has said that the 3,600 km (2,200 mi) US-Mexico border is probably "the world's longest boundary between a First World and Third ...
Land borders and maritime boundaries are included and are tabulated separately and in combination. For purposes of this list, " maritime boundary " includes boundaries that are recognized by the United Nations Convention on the Law of the Sea , which includes boundaries of territorial waters , contiguous zones , and exclusive economic zones .