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