Home Postcode finder NSWDL Ariah Park Ariah Park postcode NSWDL Ariah Park is a locality in New South Wales covered by postcode 2665. Postcode 2665 State or territory New South Wales (NSWDL) Region Canberra Add a free Ariah Park business listing More business listings in Ariah Park Businesses in Ariah ParkAriah Park Central SchoolReid St · 02 69741105 Common questionsWhat is the postcode for Ariah Park?Ariah Park, NSWDL has the postcode 2665.What state is Ariah Park in?Ariah Park is in New South Wales (NSWDL).Does postcode 2665 cover more than one suburb?Yes. Postcode 2665 covers 12 localities, so the postcode alone does not identify Ariah Park. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.