Home Postcode finder VIC Grays Bridge Grays Bridge postcode VIC Grays Bridge is a locality in Victoria covered by postcode 3477. Postcode 3477 State or territory Victoria (VIC) Region Vic Far Country Add a free Grays Bridge business listing Be the first listing in Grays Bridge Common questionsWhat is the postcode for Grays Bridge?Grays Bridge, VIC has the postcode 3477.What state is Grays Bridge in?Grays Bridge is in Victoria (VIC).Does postcode 3477 cover more than one suburb?Yes. Postcode 3477 covers 30 localities, so the postcode alone does not identify Grays Bridge. Browse other postcodes in Victoria, or widen the search to every Australian postcode.