Home Postcode finder NSWDL Eccleston Eccleston postcode NSWDL Eccleston is a locality in New South Wales covered by postcode 2311. Postcode 2311 State or territory New South Wales (NSWDL) Region Hunter Add a free Eccleston business listing Be the first listing in Eccleston Common questionsWhat is the postcode for Eccleston?Eccleston, NSWDL has the postcode 2311.What state is Eccleston in?Eccleston is in New South Wales (NSWDL).Does postcode 2311 cover more than one suburb?Yes. Postcode 2311 covers 11 localities, so the postcode alone does not identify Eccleston. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.