Home Postcode finder VIC Richmond North Richmond North postcode VIC Richmond North is a locality in Victoria covered by postcode 3121. Postcode 3121 State or territory Victoria (VIC) Region Moorabbin Add a free Richmond North business listing More business listings in Richmond North Businesses in Richmond NorthK & K Marble35 Butler Street · 03 9427 0998 Common questionsWhat is the postcode for Richmond North?Richmond North, VIC has the postcode 3121.What state is Richmond North in?Richmond North 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 North. Browse other postcodes in Victoria, or widen the search to every Australian postcode.