Home Postcode finder NSW Eureka Eureka postcode NSW Eureka is a locality in New South Wales covered by postcode 2480. Postcode 2480 State or territory New South Wales (NSW) Region NSW North Coast Add a free Eureka business listing More business listings in Eureka Businesses in EurekaEureka Public SchoolLismore Rd · 02 66884272 Common questionsWhat is the postcode for Eureka?Eureka, NSW has the postcode 2480.What state is Eureka in?Eureka is in New South Wales (NSW).Does postcode 2480 cover more than one suburb?Yes. Postcode 2480 covers 68 localities, so the postcode alone does not identify Eureka. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.