Home Postcode finder VIC Big Desert Big Desert postcode VIC Big Desert is a locality in Victoria covered by postcode 3490. Postcode 3490 State or territory Victoria (VIC) Region Vic Far Country Add a free Big Desert business listing Be the first listing in Big Desert Common questionsWhat is the postcode for Big Desert?Big Desert, VIC has the postcode 3490.What state is Big Desert in?Big Desert is in Victoria (VIC).Does postcode 3490 cover more than one suburb?Yes. Postcode 3490 covers 8 localities, so the postcode alone does not identify Big Desert. Browse other postcodes in Victoria, or widen the search to every Australian postcode.