Geography Stats: compare key data on Saint Helena & United States

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STAT	Saint Helena	United States	HISTORY
Area > Comparative	slightly more than twice the size of Washington, DC	about half the size of Russia; about three-tenths the size of Africa; about half the size of South America (or slightly larger than Brazil); slightly larger than China; more than twice the size of the European Union
Area > Comparative to US places	slightly more than twice the size of Washington, DC	about half the size of Russia; about three-tenths the size of Africa; about half the size of South America (or slightly larger than Brazil); slightly larger than China; more than twice the size of the European Union
Area > Land	410 sq km Ranked 6th.	9.16 million sq km Ranked 4th. 22346 times more than Saint Helena
Area > Land > Per capita	54.65 sq km per 1,000 people Ranked 2nd. 81% more than United States	30.16 sq km per 1,000 people Ranked 60th.
Area > Total	308 sq km Ranked 208th.	9.83 million sq km Ranked 4th. 31905 times more than Saint Helena
Area > Water	0.0 Ranked 239th.	664,709 sq km Ranked 3rd.
Climate	Saint Helena - tropical; marine; mild, tempered by trade winds; Tristan da Cunha - temperate; marine, mild, tempered by trade winds (tends to be cooler than Saint Helena)	mostly temperate, but tropical in Hawaii and Florida, arctic in Alaska, semiarid in the great plains west of the Mississippi River, and arid in the Great Basin of the southwest; low winter temperatures in the northwest are ameliorated occasionally in January and February by warm chinook winds from the eastern slopes of the Rocky Mountains
Coastline	60 km Ranked 189th.	19,924 km Ranked 9th. 332 times more than Saint Helena
Elevation extremes > Highest point	Queen Mary's Peak on Tristan da Cunha 2,060 m; Green Mountain on Ascension Island 859 m; Mount Actaeon on Saint Helena Island 818 m	Mount McKinley (Denali) 6,194 m (highest point in North America)
Geographic coordinates	<strong>Saint Helena: </strong>15 57 S, 5 42 W<br /><strong>Ascension Island:</strong> 7 57 S, 14 22 W<br /><strong>Tristan da Cunha island group:</strong> 37 15 S, 12 30 W	38 00 N, 97 00 W
Land use > Arable land	12.9% Ranked 91st.	16.29% Ranked 65th. 26% more than Saint Helena
Location	islands in the South Atlantic Ocean, about midway between South America and Africa; Ascension Island lies 700 nm northwest of Saint Helena; Tristan da Cunha lies 2,300 nm southwest of Saint Helena	North America, bordering both the North Atlantic Ocean and the North Pacific Ocean, between Canada and Mexico
Natural hazards	active volcanism on Tristan da Cunha, last eruption in 1961	tsunamis; volcanoes; earthquake activity around Pacific Basin; hurricanes along the Atlantic and Gulf of Mexico coasts; tornadoes in the Midwest and Southeast; mud slides in California; forest fires in the west; flooding; permafrost in northern Alaska, a major impediment to development
Natural resources	fish, lobster	coal, copper, lead, molybdenum, phosphates, rare earth elements, uranium, bauxite, gold, iron, mercury, nickel, potash, silver, tungsten, zinc, petroleum, natural gas, timber
Terrain	the islands of this group result from volcanic activity associated with the Atlantic Mid-Ocean Ridge<br /><strong>Saint Helena:</strong> rugged, volcanic; small scattered plateaus and plains<br /><strong>Ascension:</strong> surface covered by lava flows and cinder cones of 44 dormant volcanoes; ground rises to the east<br /><strong>Tristan da Cunha:</strong> sheer cliffs line the coastline of the nearly circular island; the flanks of the central volcanic peak are deeply dissected; narrow coastal plain lies between The Peak and the coastal cliffs	vast central plain, mountains in west, hills and low mountains in east; rugged mountains and broad river valleys in Alaska; rugged, volcanic topography in Hawaii
Maritime claims > Territorial sea	12 nautical mile Ranked 170th. The same as United States	12 nautical mile Ranked 61st.
Elevation extremes > Lowest point	Atlantic Ocean 0 m	Death Valley -86 m
Population density	17.43 people per sqkm Ranked 186th.	29.77 people per sqkm Ranked 167th. 71% more than Saint Helena
Map references	Africa	North America
Land use > Other	87.1% Ranked 130th. 4% more than United States	83.44% Ranked 150th.
Natural hazards > Volcanism	the island volcanoes of Tristan da Cunha (elev. 2,060 m) and Nightingale Island (elev. 365 m) experience volcanic activity; Tristan da Cunha erupted in 1962 and Nightingale in 2004	volcanic activity in the Hawaiian Islands, Western Alaska, the Pacific Northwest, and in the Northern Mariana Islands; both Mauna Loa (elev. 4,170 m) in Hawaii and Mount Rainier (elev. 4,392 m) in Washington have been deemed "Decade Volcanoes" by the International Association of Volcanology and Chemistry of the Earth's Interior, worthy of study due to their explosive history and close proximity to human populations; Pavlof (elev. 2,519 m) is the most active volcano in Alaska's Aleutian Arc and poses a significant threat to air travel since the area constitutes a major flight path between North America and East Asia; St. Helens (elev. 2,549 m), famous for the devastating 1980 eruption, remains active today; numerous other historically active volcanoes exist, mostly concentrated in the Aleutian arc and Hawaii; they include: in Alaska: Aniakchak, Augustine, Chiginagak, Fourpeaked, Iliamna, Katmai, Kupreanof, Martin, Novarupta, Redoubt, Spurr, Wrangell; in Hawaii: Trident, Ugashik-Peulik, Ukinrek Maars, Veniaminof; in the Northern Mariana Islands: Anatahan; and in the Pacific Northwest: Mount Baker, Mount Hood
Land use > Permanent crops	0.0 Ranked 239th.	0.26% Ranked 164th.
Note	Saint Helena harbors at least 40 species of plants unknown elsewhere in the world; Ascension is a breeding ground for sea turtles and sooty terns; Queen Mary's Peak on Tristan da Cunha is the highest island mountain in the South Atlantic and a prominent landmark on the sea lanes around southern Africa	world's third-largest country by size (after Russia and Canada) and by population (after China and India); Mt. McKinley is highest point in North America and Death Valley the lowest point on the continent
Forested Land	6.5% Ranked 157th.	24.7% Ranked 108th. 4 times more than Saint Helena
Area > Total > Per capita	54.34 sq km per 1,000 people Ranked 43th. 68% more than United States	32.34 sq km per 1,000 people Ranked 62nd.
Area > A note	includes <a href=/kp/St>St</a>. <a href=/encyclopedia/Helena,-Montana><a href=/encyclopedia/Helena,-Montana>Helena</a></a> Island, Ascension, and the island group of Tristan da Cunha, which consists of Tristan da Cunha Island, Gough Island, Inaccessible Island, and the three Nightingale Islands	includes only the 50 states and <a href=/encyclopedia/Washington,-DC><a href=/encyclopedia/Washington,-DC>District of Columbia</a></a>

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