Home Postcode finder NSWDL Appletree Flat Appletree Flat postcode NSWDL Appletree Flat is a locality in New South Wales covered by postcode 2330. Postcode 2330 State or territory New South Wales (NSWDL) Region Hunter Add a free Appletree Flat business listing Be the first listing in Appletree Flat Common questionsWhat is the postcode for Appletree Flat?Appletree Flat, NSWDL has the postcode 2330.What state is Appletree Flat in?Appletree Flat is in New South Wales (NSWDL).Does postcode 2330 cover more than one suburb?Yes. Postcode 2330 covers 63 localities, so the postcode alone does not identify Appletree Flat. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.