Home Postcode finder VIC Mount Richmond Mount Richmond postcode VIC Mount Richmond is a locality in Victoria covered by postcode 3305. Postcode 3305 State or territory Victoria (VIC) Region Vic Far Country Add a free Mount Richmond business listing Be the first listing in Mount Richmond Common questionsWhat is the postcode for Mount Richmond?Mount Richmond, VIC has the postcode 3305.What state is Mount Richmond in?Mount Richmond is in Victoria (VIC).Does postcode 3305 cover more than one suburb?Yes. Postcode 3305 covers 12 localities, so the postcode alone does not identify Mount Richmond. Browse other postcodes in Victoria, or widen the search to every Australian postcode.