Home Postcode finder NSWDL Stewarts River Stewarts River postcode NSWDL Stewarts River is a locality in New South Wales covered by postcode 2443. Postcode 2443 State or territory New South Wales (NSWDL) Region NSW North Coast Add a free Stewarts River business listing Be the first listing in Stewarts River Common questionsWhat is the postcode for Stewarts River?Stewarts River, NSWDL has the postcode 2443.What state is Stewarts River in?Stewarts River is in New South Wales (NSWDL).Does postcode 2443 cover more than one suburb?Yes. Postcode 2443 covers 19 localities, so the postcode alone does not identify Stewarts River. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.