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The contiguous United States consists of the 48 adjoining U.S. states plus Washington, D.C. (federal district), on the continent of North America.〔(【引用サイトリンク】 title=United Airlines website )〕 The term excludes the non-contiguous states of Alaska and Hawaii and all off-shore United States territories and possessions, which include American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the United States Virgin Islands.〔These maps show the contiguous 48 states and D.C., but not Alaska and Hawaii. *(【引用サイトリンク】 title=Military Bases in the Contiguous United States ) *(【引用サイトリンク】 title=Soil Moisture Regimes of the Contiguous United States )〕 The greatest distance (on a great circle route) entirely within the 48 contiguous states is 2,802 miles (4,509 km, between Florida and the state of Washington);〔(【引用サイトリンク】 title=The Longest Line in America! )〕 the greatest north-south line is 1,650 miles (2,660 km). Together, the 48 contiguous states and Washington, D.C. occupy a combined area of , which is 1.58% of the total surface area of the Earth. Of this area, is land, composing 83.65% of U.S. land area, just slightly smaller than that of Australia.〔(【引用サイトリンク】title=The World Factbook )〕 Officially, is water area, composing 62.66% of the nation's water area. The contiguous United States would be placed 5th in the list of countries and dependencies by area; the total area of the country, including Alaska and Hawaii, ranks third. China and Brazil are the only countries that are larger in total area than the contiguous United States, but smaller than the entire United States, while Russia and Canada are the only two countries larger than both. The 2010 census population of this area was 306,675,006, comprising 99.33% of the nation's population, and a density of 103.639 inhabitants/sq mi (40.015/km2), compared to 87.264/sq mi (33.692/km2) for the nation as a whole.〔(【引用サイトリンク】 title=Resident Population Data - 2010 Census )〕 == Other terms == While conterminous U.S. has the precise meaning of contiguous U.S. (both adjectives meaning "sharing a common boundary"), other terms commonly used to describe the 48 contiguous states have a greater degree of ambiguity. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Contiguous United States」の詳細全文を読む スポンサード リンク
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