The Tyne Republic (Vespan: Tyn Republik), officially the Independent Republic of the Tyne (Geordie: Unaveng Republik av denn Tyn), is a microstate bordered by the North Sea in the east and the United Kingdom in the north, south and west. It is situated on the River Tyne and has a size of just over 493sq km (190 sq mi) with an estimated population of over 880,000 giving the country a population density of 1785/sq km - the sixth most densely populated region in the world after Gibraltar and before the Vatican City. Its capital city is Newcastle.