Home Postcode finder NSW Bretti Bretti postcode NSW Bretti is a locality in New South Wales covered by postcode 2422. Postcode 2422 State or territory New South Wales (NSW) Region Hunter Add a free Bretti business listing Be the first listing in Bretti Common questionsWhat is the postcode for Bretti?Bretti, NSW has the postcode 2422.What state is Bretti in?Bretti is in New South Wales (NSW).Does postcode 2422 cover more than one suburb?Yes. Postcode 2422 covers 45 localities, so the postcode alone does not identify Bretti. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.