Home Postcode finder VIC St Germains St Germains postcode VIC St Germains is a locality in Victoria covered by postcode 3620. Postcode 3620 State or territory Victoria (VIC) Region Vic Far Country Add a free St Germains business listing Be the first listing in St Germains Common questionsWhat is the postcode for St Germains?St Germains, VIC has the postcode 3620.What state is St Germains in?St Germains is in Victoria (VIC).Does postcode 3620 cover more than one suburb?Yes. Postcode 3620 covers 7 localities, so the postcode alone does not identify St Germains. Browse other postcodes in Victoria, or widen the search to every Australian postcode.