The CIA World Factbook Every edition, 1990 to 2025 World

Land boundaries World, in 36 editions.

The entry for World published Land boundaries in 36 editions of 36, from 1990 to 2025. The text changed in 19 editions. Each is shown as published. Land boundaries in every entry.

editions changed the text
19
the first edition with it
1990
the latest edition with it
2025

Published as “Land boundaries” (1990 to 2025).

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2025 edition

Changed since 2024

Open the 2025 entry

the land boundaries in The World Factbook total 279,035.5 km (not counting shared boundaries twice), but the number is only an estimate because of the difficulty in precisely measuring natural features such as rivers

note 1: 46 nations and other areas are landlocked, these include: Afghanistan, Andorra, Armenia, Austria, Azerbaijan, Belarus, Bhutan, Bolivia, Botswana, Burkina Faso, Burundi, Central African Republic, Chad, Czechia, Eswatini, Ethiopia, Holy See (Vatican City), Hungary, Kazakhstan, Kosovo, Kyrgyzstan, Laos, Lesotho, Liechtenstein, Luxembourg, North Macedonia, Malawi, Mali, Moldova, Mongolia, Nepal, Niger, Paraguay, Rwanda, San Marino, Serbia, Slovakia, South Sudan, Switzerland, Tajikistan, Turkmenistan, Uganda, Uzbekistan, West Bank, Zambia, Zimbabwe; two of these, Liechtenstein and Uzbekistan, are doubly landlocked

note 2: worldwide, about one quarter of interior (non-coastal) borders are rivers; South America with 43% leads the continents, followed by North America with 32%, Africa with 30%, Europe with 23%, and Asia with 18%; Australia has no interior national river borders

note 3: two nations, China and Russia, each border 14 other countries

the land boundaries in The World Factbook total 279,035.5 km (not counting shared boundaries twice); two nations, China and Russia, each border 14 other countries
note 1: the precision of
twice), but the total is somewhat misleading, since one cannot accurately measure every river meander along a boundary; a number rounded slightly higher -- to 280,000 km -- has been coordinated with and approved by is only an estimate because of the US State Department difficulty in precisely measuring natural features such as rivers
note 2: 1: 46 nations and other areas are landlocked, these include: Afghanistan, Andorra, Armenia, Austria, Azerbaijan, Belarus, Bhutan, Bolivia, Botswana, Burkina Faso, Burundi, Central African Republic, Chad, Czechia, Eswatini, Ethiopia, Holy See (Vatican City), Hungary, Kazakhstan, Kosovo, Kyrgyzstan, Laos, Lesotho, Liechtenstein, Luxembourg, North Macedonia, Malawi, Mali, Moldova, Mongolia, Nepal, Niger, Paraguay, Rwanda, San Marino, Serbia, Slovakia, South Sudan, Switzerland, Tajikistan, Turkmenistan, Uganda, Uzbekistan, West Bank, Zambia, Zimbabwe; two of these, Liechtenstein and Uzbekistan, are doubly landlocked
note 3: 2: worldwide, some one-quarter about one quarter of interior (non-coastal) borders are rivers; South America with 43% leads the continents, followed by North America with 32%, Africa with 30%, Europe with 23%, and Asia with 18%; Australia has no interior national river borders
note 3: two nations, China and Russia, each border 14 other countries

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Central Intelligence Agency. “World: Land boundaries.” The World Factbook, 1990–2025 editions. Archived by The Factbook, thefactbook.org/world/land-boundaries.

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