Home Postcode finder NSW Whalan Whalan postcode NSW Whalan is a locality in New South Wales covered by postcode 2770. Postcode 2770 State or territory New South Wales (NSW) Region Nepean Add a free Whalan business listing More business listings in Whalan Businesses in WhalanBrians Pressure Cleaners35 Talasea Street · 0418 468 647Global Cleaningshop 1/57 Bulolo Drive, Whalan NSW 2770, Australia · 1800626659Halinda SchoolMimika Ave · 02 96757262 Common questionsWhat is the postcode for Whalan?Whalan, NSW has the postcode 2770.What state is Whalan in?Whalan is in New South Wales (NSW).Does postcode 2770 cover more than one suburb?Yes. Postcode 2770 covers 13 localities, so the postcode alone does not identify Whalan. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.