Cook Islands Government About PICTs - GovernmentSelf-governing State in free association with New Zealand Capital About PICTs - CapitalAvarua Population Mid-year population estimate15,406 2022 Land area Land area240 km² Max height above sea level About PICTs - Max height above sea level652 m EEZ area About PICTs - EEZ area1,830,000 km² Currency About PICTs - CurrencyNew Zealand dollar (NZD) Languages About PICTs - LanguagesCook Islands Maori. English GDP per capita (USD) Gross Domestic Product per capita$16,688 2021 Useful links Government of the Cook Islands The Cook Islands – Travel Pacific Community Membership About PICTs - Pacific Community Membership1980