Home Postcode finder NSW Rennie Rennie postcode NSW Rennie is a locality in New South Wales covered by postcode 2646. Postcode 2646 State or territory New South Wales (NSW) Region Canberra Add a free Rennie business listing Be the first listing in Rennie Common questionsWhat is the postcode for Rennie?Rennie, NSW has the postcode 2646.What state is Rennie in?Rennie is in New South Wales (NSW).Does postcode 2646 cover more than one suburb?Yes. Postcode 2646 covers 15 localities, so the postcode alone does not identify Rennie. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.