Home Postcode finder NSW Copacabana Copacabana postcode NSW Copacabana is a locality in New South Wales covered by postcode 2251. Postcode 2251 State or territory New South Wales (NSW) Region Gosford Add a free Copacabana business listing More business listings in Copacabana Businesses in CopacabanaCopacabana Public SchoolPueblo St · 02 43821766 Common questionsWhat is the postcode for Copacabana?Copacabana, NSW has the postcode 2251.What state is Copacabana in?Copacabana is in New South Wales (NSW).Does postcode 2251 cover more than one suburb?Yes. Postcode 2251 covers 12 localities, so the postcode alone does not identify Copacabana. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.