United States with its capital Washington is located in North America (North America, bordering both the North Atlantic Ocean and the North Pacific Ocean). It covers some 9,629,092 square kilometres (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) with 303,824,000 citizens. English, Spanish and are the languages commonly used by the people in United States (consider regional differences). Canada, Mexico and Cuba are bordering countries.

The United States of America is a large country in North America. It also boasts the world's third largest population after China and India, with over 300 million people. The United States is not the America of television and movies. It is large, complex, and diverse, with distinct regional identities. Due to the distances involved, traveling between regions can be time-consuming and expensive. The overall climate is temperate, with notable exceptions. Alaska has Arctic tundra, while Hawaii and South Florida are tropical. The United States has exceptionally onerous and complicated visa requirements. Read up carefully before your visit. The United States is extraordinarily diverse in its array of attractions. You will never run out of things to see; even if you think you've exhausted what one place has to offer, the next destination is only a road trip away. While GSM has been gaining popularity, the U.S. uses the unusual 1900 and 850 MHz frequencies; check with your operator or mobile phone dealer to see if your phone is a tri-band or quad-band model that will work here.

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National Harbor...
© Scott Finley
Fountain at National...
© TimPoe
Gaylord Hotel at...
© ddarbela
Potomac
© Danny Smith Jr
Natioanl Harbor
© TimPoe
The landscape featuresvast central plain, mountains in west, hills and low mountains in east with rugged mountains and broad river valleys in Alaska and rugged, volcanic topography in Hawaii. The average density of population is about 31 per km². The climate in can be described as 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 with 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. Potential threats by nature are tsunamis or 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 or permafrost in northern Alaska, a major impediment to development.
To reach someone in United States dial +1 prior to a number. There are 141,000,000 installed telephones. And there are 286,000,000 registered mobile phones. The cellular networks operate on frequencies of 850, 1900 Mhz. Websites typically end with the top level domain ".us". If you want to bring electric appliances (e.g. battery charger), keep in mind the local 120V - 60Hz.
The country consists of 51 regions/states which are listed below.
United States has 16 more world heritage locations. To see all of them, visit the United States Unesco Heritage location overview.
Cahokia Mounds, some 13 km north-east of St Louis, Missouri, is the largest pre-Columbian settlement north of Mexico. It was occupied primarily during the Mississippian period (800–1400),...
This karst landscape in the state of New Mexico comprises over 80 recognized caves. They are outstanding not only for their size but also for the profusion, diversity and beauty of their mineral...
For over 2,000 years, Pueblo peoples occupied a vast region of the south-western United States. Chaco Canyon, a major centre of ancestral Pueblo culture between 850 and 1250, was a focus for...
This site at the southern tip of Florida has been called 'a river of grass flowing imperceptibly from the hinterland into the sea'. The exceptional variety of its water habitats has made it a...
Carved out by the Colorado River, the Grand Canyon (nearly 1,500 m deep) is the most spectacular gorge in the world. Located in the state of Arizona, it cuts across the Grand Canyon National Park....
Each pair of bars represents a single age group (male/female). Each group is spanning 5 years. E.g. 0 to 5 years, 5 to 10 etc. and group "0 to 5" being at the left end and "100 +" at the right end of the chart.
The number of people born in United States has declined over the last 10 years by 0.5 births per thousand from 14.1 in 2001 to 13.8 in 2010. Currently, 4,290,520 children are born each year.
The number of people naturally dying in United States has declined over the last 10 years by 0.5 deaths per thousand from 8.5 in 2001 to 8.4 in 2010. Currently, 2,599,751 people die each year.
Population, Migration and Growth: The population in United States is growing at an rate of 0.97% (or by 3,009,259 citizens). Each year 1,318,490 people enter this country (or 4.30 per thousand citizens) - making it an immigration country. This leads to an absolute natural increase rate of the population of 0.55%. Or an total increase of 1,690,769 citizens.
Based on content from wikitravel.org. The original article can be found here based on the work of these users.
Geographic information is based on the data provided by geonames.org, CIA factsbook and Unesco.