Home Postcode finder NSWDL Sydney Domestic Airport Sydney Domestic Airport postcode NSWDL Sydney Domestic Airport is a locality in New South Wales covered by postcode 2020. Postcode 2020 State or territory New South Wales (NSWDL) Region Alexandria Add a free Sydney Domestic Airport business listing Be the first listing in Sydney Domestic Airport Common questionsWhat is the postcode for Sydney Domestic Airport?Sydney Domestic Airport, NSWDL has the postcode 2020.What state is Sydney Domestic Airport in?Sydney Domestic Airport is in New South Wales (NSWDL).Does postcode 2020 cover more than one suburb?Yes. Postcode 2020 covers 3 localities, so the postcode alone does not identify Sydney Domestic Airport. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.