Niua is a division of the Kingdom of Tonga, namely the northernmost group of islands. It consists of three islands (Niuafoʻou, Niuatoputapu and Tafahi) which together have an area of 71.69 km2 and a population of 1,232. The largest village is Hihifo on Niuatoputapu. Piu'o Tafahi is the highest point with an elevation of 560 m.