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:
... with no husband present, and 21.9% are non-families. 17.7% of all households are made up of individuals and 7.6% have someone living alone who is 65 years of age or older. ...