Home Postcode finder VIC Carlsruhe Carlsruhe postcode VIC Carlsruhe is a locality in Victoria covered by postcode 3442. Postcode 3442 State or territory Victoria (VIC) Region Melbourne North West Add a free Carlsruhe business listing Be the first listing in Carlsruhe Common questionsWhat is the postcode for Carlsruhe?Carlsruhe, VIC has the postcode 3442.What state is Carlsruhe in?Carlsruhe is in Victoria (VIC).Does postcode 3442 cover more than one suburb?Yes. Postcode 3442 covers 9 localities, so the postcode alone does not identify Carlsruhe. Browse other postcodes in Victoria, or widen the search to every Australian postcode.