New Zealand Government Parliamentary democracy and constitutional monarchy; UN Member State (1945); Member of the Commonwealth (1931) Capital Wellington Population 4 900 000 Land area 270 500 km² Max height above sea level 3 754 m EEZ 4 000 000 km² GDP Year 2020 Currency NZ dollar Languages English Māori New Zealand Sign Language GDP per capita 43 953 USD Useful links Ministry of Foreign Affairs and Trade New Zealand and the Pacific New Zealand Government information and services Tourism New Zealand Pacific Community Membership 1947