Home Postcode finder VIC Maryknoll Maryknoll postcode VIC Maryknoll is a locality in Victoria covered by postcode 3812. Postcode 3812 State or territory Victoria (VIC) Region Vic Far Country Add a free Maryknoll business listing More business listings in Maryknoll Businesses in MaryknollDecodays Bullen Road · 59429085 Common questionsWhat is the postcode for Maryknoll?Maryknoll, VIC has the postcode 3812.What state is Maryknoll in?Maryknoll is in Victoria (VIC).Does postcode 3812 cover more than one suburb?Yes. Postcode 3812 covers 3 localities, so the postcode alone does not identify Maryknoll. Browse other postcodes in Victoria, or widen the search to every Australian postcode.