Home Postcode finder NSW North Arm North Arm postcode NSW North Arm is a locality in New South Wales covered by postcode 2484. Postcode 2484 State or territory New South Wales (NSW) Region Gold Coast Add a free North Arm business listing More business listings in North Arm Businesses in North ArmCrystal Creek Public School813 Numinbah Rd · 02 66791223 Common questionsWhat is the postcode for North Arm?North Arm, NSW has the postcode 2484.What state is North Arm in?North Arm is in New South Wales (NSW).Does postcode 2484 cover more than one suburb?Yes. Postcode 2484 covers 56 localities, so the postcode alone does not identify North Arm. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.