Home Postcode finder NSWDL St Pauls St Pauls postcode NSWDL St Pauls is a locality in New South Wales covered by postcode 2031. Postcode 2031 State or territory New South Wales (NSWDL) Region Waterloo Add a free St Pauls business listing Be the first listing in St Pauls Common questionsWhat is the postcode for St Pauls?St Pauls, NSWDL has the postcode 2031.What state is St Pauls in?St Pauls is in New South Wales (NSWDL).Does postcode 2031 cover more than one suburb?Yes. Postcode 2031 covers 4 localities, so the postcode alone does not identify St Pauls. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.