Home Postcode finder NSW Bowman Bowman postcode NSW Bowman 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 Bowman business listing Be the first listing in Bowman Common questionsWhat is the postcode for Bowman?Bowman, NSW has the postcode 2422.What state is Bowman in?Bowman 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 Bowman. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.