Home Postcode finder VIC Cranbourne Cranbourne postcode VIC Cranbourne is a locality in Victoria covered by postcode 3977. Postcode 3977 State or territory Victoria (VIC) Region Frankston Add a free Cranbourne business listing More business listings in Cranbourne Businesses in CranbourneAdd Force Personnel Services180A Sladen St · (03) 5995-5522Add Force Personnel Services Pty Ltd.180A Sladen Street · (03) 5995-5522Addforce180A Sladen Street · 03 5995-5522 Common questionsWhat is the postcode for Cranbourne?Cranbourne, VIC has the postcode 3977.What state is Cranbourne in?Cranbourne is in Victoria (VIC).Does postcode 3977 cover more than one suburb?Yes. Postcode 3977 covers 11 localities, so the postcode alone does not identify Cranbourne. Browse other postcodes in Victoria, or widen the search to every Australian postcode.