Home Postcode finder NSWDL Avoca Avoca postcode NSWDL Avoca is a locality in New South Wales covered by postcode 2577. Postcode 2577 State or territory New South Wales (NSWDL) Region Ingleburn Add a free Avoca business listing More business listings in Avoca Businesses in AvocaAvoca Public SchoolSheepwash Rd · 02 48877224 Common questionsWhat is the postcode for Avoca?Avoca, NSWDL has the postcode 2577.What state is Avoca in?Avoca is in New South Wales (NSWDL).Does postcode 2577 cover more than one suburb?Yes. Postcode 2577 covers 30 localities, so the postcode alone does not identify Avoca. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.