Home Postcode finder NSW Wyndham Wyndham postcode NSW Wyndham is a locality in New South Wales covered by postcode 2550. Postcode 2550 State or territory New South Wales (NSW) Region NSW Country West Add a free Wyndham business listing More business listings in Wyndham Businesses in WyndhamWyndham Public SchoolMonaro St · 02 64942128 Common questionsWhat is the postcode for Wyndham?Wyndham, NSW has the postcode 2550.What state is Wyndham in?Wyndham is in New South Wales (NSW).Does postcode 2550 cover more than one suburb?Yes. Postcode 2550 covers 52 localities, so the postcode alone does not identify Wyndham. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.