Home Postcode finder NSWDL Sylvania Sylvania postcode NSWDL Sylvania is a locality in New South Wales covered by postcode 2224. Postcode 2224 State or territory New South Wales (NSWDL) Region Illawarra Add a free Sylvania business listing More business listings in Sylvania Businesses in SylvaniaAuld Langs LineB15 - 2B Mowbary Street · (02) 9605 6875CODA Batteries335 Princes Highway, Sylvania NSW 2224, Australia · 0295446623Integrated TelecomsPO Box 511 Southgate · 1300 682 242 Common questionsWhat is the postcode for Sylvania?Sylvania, NSWDL has the postcode 2224.What state is Sylvania in?Sylvania is in New South Wales (NSWDL).Does postcode 2224 cover more than one suburb?Yes. Postcode 2224 covers 4 localities, so the postcode alone does not identify Sylvania. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.