Home Postcode finder NSWDL Southgate Southgate postcode NSWDL Southgate is a locality in New South Wales covered by postcode 2460. Postcode 2460 State or territory New South Wales (NSWDL) Region NSW North Coast Add a free Southgate business listing Be the first listing in Southgate Common questionsWhat is the postcode for Southgate?Southgate, NSWDL has the postcode 2460.What state is Southgate in?Southgate is in New South Wales (NSWDL).Does postcode 2460 cover more than one suburb?Yes. Postcode 2460 covers 91 localities, so the postcode alone does not identify Southgate. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.