New Zealand has a large number of islands.
The two main islands, which are much larger than the rest and where nearly all of the population lives, are the North Island and the South Island. The latter is often referred to as the "mainland", especially by its residents, despite it being only a little larger and having a lower population.
The following is a list of many of the islands of New Zealand:
... units at an average density of 1,640.9/km² (4,169.6/mi²). The racial makeup of the village is 98.55% White, 0.00% African American, 0.00% Native American, ...