Home Postcode finder NSW Gunning Gunning postcode NSW Gunning is a locality in New South Wales covered by postcode 2581. Postcode 2581 State or territory New South Wales (NSW) Region Canberra Add a free Gunning business listing More business listings in Gunning Businesses in GunningGunning Public SchoolYass St · 02 48451129 Common questionsWhat is the postcode for Gunning?Gunning, NSW has the postcode 2581.What state is Gunning in?Gunning is in New South Wales (NSW).Does postcode 2581 cover more than one suburb?Yes. Postcode 2581 covers 17 localities, so the postcode alone does not identify Gunning. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.