The demographics of New Zealand encompass the gender, ethnic, religious, geographic, and economic backgrounds of the 5.3 million people living in New Zealand. New Zealanders predominantly live in urban areas on the North Island. The five largest cities are Auckland, Wellington, Christchurch, Hamilton, and Tauranga. Few New Zealanders live on New Zealand's smaller islands. Waiheke Island (near Auckland) is easily the most populated smaller island with 9,360 residents, while Great Barrier Island, the Chatham and Pitt Islands, and Stewart Island each have populations below 1,000. New Zealand is part of a realm and most people born in the realm's external territories of Tokelau, the Ross Dependency, the Cook Islands and Niue are entitled to New Zealand passports.
As of the 2018 census, the majority of New Zealand's population is of European descent (70 percent; often referred to as Pākehā), with the indigenous Māori being the largest minority (16.5 percent), followed by Asians (15.3 percent), and non-Māori Pacific Islanders known collectively as Pasifika (9.0 percent). This is reflected in immigration, with most new migrants coming from Britain and Ireland, although the numbers from Asia in particular are increasing. Auckland is the most ethnically diverse region in New Zealand with 53.5 percent identifying as Europeans, 28.2 percent as Asian, 11.5 percent as Māori, 15.5 percent as Pasifika, and 2.3 percent as Middle Eastern, Latin American or African (MELAA). New Zealand is considered by some to be unique among Western countries for its high levels of ethnic intermarriage, which has historically been viewed with tolerance. According to a 2006 study, Māori have on average roughly 43% European ancestry, although the notion of being "mixed-race" is uncommon.