Home Postcode finder NSW Big Springs Big Springs postcode NSW Big Springs is a locality in New South Wales covered by postcode 2650. Postcode 2650 State or territory New South Wales (NSW) Region Canberra Add a free Big Springs business listing Be the first listing in Big Springs Common questionsWhat is the postcode for Big Springs?Big Springs, NSW has the postcode 2650.What state is Big Springs in?Big Springs is in New South Wales (NSW).Does postcode 2650 cover more than one suburb?Yes. Postcode 2650 covers 52 localities, so the postcode alone does not identify Big Springs. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.