Ireland, commonly known as the Republic of Ireland, is one of the member states of the European Union. The Republic of Ireland is located in the central southern part of the island of Ireland in western Europe, bordering the Atlantic Ocean to the west, Northern Ireland to the northeast, and the United Kingdom across the Irish Sea to the east. The coastline is 3169 kilometers long and has a temperate marine climate, known as the "Jade Island Country". The capital is located in Dublin in the eastern part of the island of Ireland. Ireland has a total population of 4.58 million in 2011. The country has a high degree of press freedom, economic freedom, democracy and political freedom. Ireland is also a member of the Council of Europe, the World Trade Organization, and the United Nations. Irish immigrants have always been favored by investors.