United Kingdom
United Kingdom

United Kingdom of Great Britain and Northern Ireland

The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) and colloquially Great Britain (GB) or simply Britain, is a sovereign country in western Europe. Lying off the north-western coast of the European mainland, the United Kingdom includes the island of Great Britain, the north-eastern part of the island of Ireland and many smaller islands.[11] Northern Ireland is the only part of the United Kingdom that shares a land border with another sovereign state‍—‌the Republic of Ireland.[note 9]Apart from this land border, the United Kingdom is surrounded by the Atlantic Ocean, with the North Sea to its east, the English Channel to its south and the Celtic Sea to its south-south-west, giving it the 12th-longest coastline in the world. The Irish Sea lies between Great Britain and Ireland. With an area of 242,500 square kilometres (93,600 sq mi), the United Kingdom is the 78th-largest sovereign state in the world and the 11th-largest in Europe. It is also the 21st-most populous country, with an estimated 65.1 million inhabitants.[12] Together, this makes it the fourth-most densely populated country in the European Union (EU).[note 10][13]

Capital
and largest city
London
51°30′N 0°7′W
Official language
and national language
English
Recognised regional languages[note 3]
Ethnic groups (2011)
Religion (2011)
Demonym
  • British
  • Briton
Countries of the United Kingdom
Government Unitary parliamentaryconstitutional monarchy
• Monarch
Elizabeth II
Theresa May
Legislature Parliament
House of Lords
House of Commons
Formation
1535 and 1542
24 March 1603
1 May 1707
1 January 1801
5 December 1922
1 January 1973
Area
• Total
242,495 km2(93,628 sq mi)[4](78th)
• Water (%)
1.34
Population
• 2016 estimate
Increase 65,648,000[5](22nd)
• 2011 census
63,181,775[6] (22nd)
• Density
270.7/km2(701.1/sq mi) (50th)
GDP (PPP) 2016 estimate
• Total
$2.79 trillion (9th)
• Per capita
$42,514[7] (25th)
GDP (nominal) 2016 estimate
• Total
$2.63 trillion (5th)
• Per capita
$40,096[8] (19th)
Currency Pound sterling[note 5](GBP£)
Time zone Greenwich Mean Time[note 6] (UTC⁠)
• Summer (DST)
British Summer Time (UTC+1)

Source:  wikipedia.org