Home Postcode finder VIC Campbells Forest Campbells Forest postcode VIC Campbells Forest is a locality in Victoria covered by postcode 3556. Postcode 3556 State or territory Victoria (VIC) Region Vic Country Add a free Campbells Forest business listing Be the first listing in Campbells Forest Common questionsWhat is the postcode for Campbells Forest?Campbells Forest, VIC has the postcode 3556.What state is Campbells Forest in?Campbells Forest is in Victoria (VIC).Does postcode 3556 cover more than one suburb?Yes. Postcode 3556 covers 10 localities, so the postcode alone does not identify Campbells Forest. Browse other postcodes in Victoria, or widen the search to every Australian postcode.