Home Postcode finder VIC Illawarra Illawarra postcode VIC Illawarra is a locality in Victoria covered by postcode 3381. Postcode 3381 State or territory Victoria (VIC) Region Vic Far Country Add a free Illawarra business listing Be the first listing in Illawarra Common questionsWhat is the postcode for Illawarra?Illawarra, VIC has the postcode 3381.What state is Illawarra in?Illawarra is in Victoria (VIC).Does postcode 3381 cover more than one suburb?Yes. Postcode 3381 covers 11 localities, so the postcode alone does not identify Illawarra. Browse other postcodes in Victoria, or widen the search to every Australian postcode.