Home Postcode finder VIC Crookayan Crookayan postcode VIC Crookayan is a locality in Victoria covered by postcode 3858. Postcode 3858 State or territory Victoria (VIC) Region Vic Far Country Add a free Crookayan business listing Be the first listing in Crookayan Common questionsWhat is the postcode for Crookayan?Crookayan, VIC has the postcode 3858.What state is Crookayan in?Crookayan is in Victoria (VIC).Does postcode 3858 cover more than one suburb?Yes. Postcode 3858 covers 20 localities, so the postcode alone does not identify Crookayan. Browse other postcodes in Victoria, or widen the search to every Australian postcode.