Home Postcode finder NSW Upper Crystal Creek Upper Crystal Creek postcode NSW Upper Crystal Creek is a locality in New South Wales covered by postcode 2484. Postcode 2484 State or territory New South Wales (NSW) Region Gold Coast Add a free Upper Crystal Creek business listing Be the first listing in Upper Crystal Creek Common questionsWhat is the postcode for Upper Crystal Creek?Upper Crystal Creek, NSW has the postcode 2484.What state is Upper Crystal Creek in?Upper Crystal Creek is in New South Wales (NSW).Does postcode 2484 cover more than one suburb?Yes. Postcode 2484 covers 56 localities, so the postcode alone does not identify Upper Crystal Creek. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.