Home Postcode finder NSW Magenta Magenta postcode NSW Magenta is a locality in New South Wales covered by postcode 2261. Postcode 2261 State or territory New South Wales (NSW) Region Gosford Add a free Magenta business listing Be the first listing in Magenta Common questionsWhat is the postcode for Magenta?Magenta, NSW has the postcode 2261.What state is Magenta in?Magenta is in New South Wales (NSW).Does postcode 2261 cover more than one suburb?Yes. Postcode 2261 covers 15 localities, so the postcode alone does not identify Magenta. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.