Home Postcode finder VIC Blackwood Forest Blackwood Forest postcode VIC Blackwood Forest is a locality in Victoria covered by postcode 3992. Postcode 3992 State or territory Victoria (VIC) Region Vic Far Country Add a free Blackwood Forest business listing Be the first listing in Blackwood Forest Common questionsWhat is the postcode for Blackwood Forest?Blackwood Forest, VIC has the postcode 3992.What state is Blackwood Forest in?Blackwood Forest is in Victoria (VIC).Does postcode 3992 cover more than one suburb?Yes. Postcode 3992 covers 4 localities, so the postcode alone does not identify Blackwood Forest. Browse other postcodes in Victoria, or widen the search to every Australian postcode.