Home Postcode finder NSW Toongabbie East Toongabbie East postcode NSW Toongabbie East is a locality in New South Wales covered by postcode 2146. Postcode 2146 State or territory New South Wales (NSW) Region Seven Hills Add a free Toongabbie East business listing Be the first listing in Toongabbie East Common questionsWhat is the postcode for Toongabbie East?Toongabbie East, NSW has the postcode 2146.What state is Toongabbie East in?Toongabbie East is in New South Wales (NSW).Does postcode 2146 cover more than one suburb?Yes. Postcode 2146 covers 3 localities, so the postcode alone does not identify Toongabbie East. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.