Home Postcode finder NSWDL Smithfield West Smithfield West postcode NSWDL Smithfield West is a locality in New South Wales covered by postcode 2164. Postcode 2164 State or territory New South Wales (NSWDL) Region Leightonfield Add a free Smithfield West business listing Be the first listing in Smithfield West Common questionsWhat is the postcode for Smithfield West?Smithfield West, NSWDL has the postcode 2164.What state is Smithfield West in?Smithfield West is in New South Wales (NSWDL).Does postcode 2164 cover more than one suburb?Yes. Postcode 2164 covers 4 localities, so the postcode alone does not identify Smithfield West. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.