Home Postcode finder VIC Dockers Plains Dockers Plains postcode VIC Dockers Plains is a locality in Victoria covered by postcode 3678. Postcode 3678 State or territory Victoria (VIC) Region Vic Far Country Add a free Dockers Plains business listing Be the first listing in Dockers Plains Common questionsWhat is the postcode for Dockers Plains?Dockers Plains, VIC has the postcode 3678.What state is Dockers Plains in?Dockers Plains is in Victoria (VIC).Does postcode 3678 cover more than one suburb?Yes. Postcode 3678 covers 35 localities, so the postcode alone does not identify Dockers Plains. Browse other postcodes in Victoria, or widen the search to every Australian postcode.