Home Postcode finder VIC Richmond East Richmond East postcode VIC Richmond East is a locality in Victoria covered by postcode 3121. Postcode 3121 State or territory Victoria (VIC) Region Moorabbin Add a free Richmond East business listing Be the first listing in Richmond East Common questionsWhat is the postcode for Richmond East?Richmond East, VIC has the postcode 3121.What state is Richmond East in?Richmond East is in Victoria (VIC).Does postcode 3121 cover more than one suburb?Yes. Postcode 3121 covers 7 localities, so the postcode alone does not identify Richmond East. Browse other postcodes in Victoria, or widen the search to every Australian postcode.