Geographic contiguity in the context of "U.S. mainland"

An outlying territory or separate area is a state territory geographically separated from its parent territory and lies beyond Exclusive Economic Zone of its parent territory.

The tables below are lists of outlying territories which are marked by distinct, non-contiguous maritime boundaries or land boundaries:

The contiguous United States, also known as the U.S. mainland, officially referred to as the conterminous United States, consists of the 48 adjoining U.S. states and the District of Columbia of the United States in central North America. The term excludes the only two non-contiguous states and the last two to be admitted to the Union, which are Alaska and Hawaii, and all other offshore insular areas, such as the U.S. territories of American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands. The colloquial term Lower 48 is also used, especially in relation to Alaska. The term The Mainland is used in Hawaii. The related but distinct term continental United States includes Alaska, which is also in North America, but separated from the 48 states by British Columbia in Canada, but excludes Hawaii and all the insular areas in the Caribbean and the Pacific.

The greatest distance on a great-circle route entirely within the contiguous U.S. is 2,802 miles (4,509 km), coast-to-coast between Florida and Washington state; the greatest north–south line is 1,650 miles (2,660 km). The contiguous United States occupies an area of 3,119,884.69 square miles (8,080,464.3 km). Of this area, 2,959,064.44 square miles (7,663,941.7 km) is actual land, composing 83.65 percent of the country's total land area, and is comparable in size to the area of Australia. Officially, 160,820.25 square miles (416,522.5 km) of the contiguous United States is water area, composing 62.66 percent of the nation's total water area.

Åland (/ˈɔːlənd/ AW-lənd, Swedish: [ˈǒːland] ; Finnish: Ahvenanmaa) is an autonomous and demilitarised region of Finland. Receiving its autonomy by a 1920 decision of the League of Nations, it is the smallest region of Finland by both area (1,580 km or 610 sq mi) and population (30,654), constituting 0.51% of Finland's land area and 0.54% of its population. Its official language is Swedish and the capital city is Mariehamn.

Åland is situated in an archipelago, called the Åland Islands, at the entrance to the Gulf of Bothnia in the Baltic Sea. It comprises Fasta Åland, on which 90% of the population resides, and about 6,500 skerries and islands to its east, of which about 60–80 are inhabited. Fasta Åland is separated from the coast of Roslagen in Sweden by 38 km (20+1⁄2 nautical miles) of open water to the west. In the east, the Åland archipelago is contiguous with the Finnish archipelago. Åland's only land border is located on the uninhabited skerry of Märket, which it shares with Sweden. From Mariehamn, there is a ferry distance of about 160 km (86 nautical miles) to Turku, a coastal city of mainland Finland, and also to Stockholm, the capital of Sweden.

The Frontier March of Posen–West Prussia (German: Grenzmark Posen-Westpreußen; Polish: Marchia Graniczna Poznańsko-Zachodniopruska) was a province of Prussia that existed from 1920 (de facto) and 1922 (de jure) until its dissolution in 1938. It comprised most of the former territory of West Prussia and parts of the Province of Posen that had remained within Germany following the territorial losses to the Second Polish Republic after the Greater Poland Uprising, and confirmed by the Treaty of Versailles. The province was created in 1922 as part of the Free State of Prussia within Weimar Germany, incorporating three remaining non-contiguous territories of the former provinces of Posen and West Prussia.

Schneidemühl (present-day Piła) served as the provincial capital. From 1934 onwards, the province came under the de facto administration of the Province of Brandenburg, and on 1 October 1938, the territory was officially dissolved by Nazi Germany. Its lands were subsequently incorporated into the neighbouring provinces of Pomerania, Brandenburg and Silesia. Following the end of World War II and the redrawing of borders, the entire area of the former province was incorporated into Poland, lying east of the Oder–Neisse line.

Böblingen (German pronunciation: [ˈbøːblɪŋən] ; Swabian: Beblenga) is a town in Baden-Württemberg, Germany, seat of Böblingen District. Sindelfingen and Böblingen are contiguous.