Home Postcode finder NSW Greta Greta postcode NSW Greta is a locality in New South Wales covered by postcode 2334. Postcode 2334 State or territory New South Wales (NSW) Region Hunter Add a free Greta business listing More business listings in Greta Businesses in GretaGoanna Gold Detectors44 Wyndham St · 02 4938 7670 Goanna Gold Detectors44 Wyndham St · 0249387670 Greta Public SchoolWyndham St · 02 49387331 Common questionsWhat is the postcode for Greta?Greta, NSW has the postcode 2334.What state is Greta in?Greta is in New South Wales (NSW).Does postcode 2334 cover more than one suburb?No. Postcode 2334 covers Greta only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.