Home Postcode finder NSWDL Swanhaven Swanhaven postcode NSWDL Swanhaven is a locality in New South Wales covered by postcode 2540. Postcode 2540 State or territory New South Wales (NSWDL) Region NSW Country West Add a free Swanhaven business listing Be the first listing in Swanhaven Common questionsWhat is the postcode for Swanhaven?Swanhaven, NSWDL has the postcode 2540.What state is Swanhaven in?Swanhaven is in New South Wales (NSWDL).Does postcode 2540 cover more than one suburb?Yes. Postcode 2540 covers 68 localities, so the postcode alone does not identify Swanhaven. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.