Anguo (China) is 85% larger than Niue.
Area: 260 km2 World Factbook
Population: 1,190 (July 2014) World Factbook
Niue is an island country in the South Pacific Ocean, 2,400 kilometres northeast of New Zealand within the triangle formed by Tonga to the west, Samoa to the north, and the Cook Islands to the east. Its land area is 260 square kilometres and its population, predominantly Polynesian, is around 1,400. Wikipedia
Area: 482 km2 calculated
Anguo, nicknamed "Medicine Capital" south of Baoding, central Hebei province, People's Republic of China. It has a provincially protected Temple of the God of Medicine (藥王廟) established around 100. In premodern China, Anguo was Qizhou (祁州: Qízhōu). In 1991, Anguo was changed from county into a city. Wikipedia