Home Postcode finder NSW Euston Euston postcode NSW Euston is a locality in New South Wales covered by postcode 2737. Postcode 2737 State or territory New South Wales (NSW) Region Vic Far Country Add a free Euston business listing More business listings in Euston Businesses in EustonEuston Public SchoolSturt Hwy · 03 50263766 Common questionsWhat is the postcode for Euston?Euston, NSW has the postcode 2737.What state is Euston in?Euston is in New South Wales (NSW).Does postcode 2737 cover more than one suburb?No. Postcode 2737 covers Euston 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.