Home Postcode finder VIC Grahamvale Grahamvale postcode VIC Grahamvale is a locality in Victoria covered by postcode 3631. Postcode 3631 State or territory Victoria (VIC) Region Vic Far Country Add a free Grahamvale business listing Be the first listing in Grahamvale Common questionsWhat is the postcode for Grahamvale?Grahamvale, VIC has the postcode 3631.What state is Grahamvale in?Grahamvale is in Victoria (VIC).Does postcode 3631 cover more than one suburb?Yes. Postcode 3631 covers 14 localities, so the postcode alone does not identify Grahamvale. Browse other postcodes in Victoria, or widen the search to every Australian postcode.