Home Postcode finder VIC Fosterville Fosterville postcode VIC Fosterville is a locality in Victoria covered by postcode 3557. Postcode 3557 State or territory Victoria (VIC) Region Vic Far Country Add a free Fosterville business listing Be the first listing in Fosterville Common questionsWhat is the postcode for Fosterville?Fosterville, VIC has the postcode 3557.What state is Fosterville in?Fosterville is in Victoria (VIC).Does postcode 3557 cover more than one suburb?Yes. Postcode 3557 covers 4 localities, so the postcode alone does not identify Fosterville. Browse other postcodes in Victoria, or widen the search to every Australian postcode.