Home Postcode finder VIC Lake Mundi Lake Mundi postcode VIC Lake Mundi is a locality in Victoria covered by postcode 3312. Postcode 3312 State or territory Victoria (VIC) Region Vic Far Country Add a free Lake Mundi business listing Be the first listing in Lake Mundi Common questionsWhat is the postcode for Lake Mundi?Lake Mundi, VIC has the postcode 3312.What state is Lake Mundi in?Lake Mundi is in Victoria (VIC).Does postcode 3312 cover more than one suburb?Yes. Postcode 3312 covers 19 localities, so the postcode alone does not identify Lake Mundi. Browse other postcodes in Victoria, or widen the search to every Australian postcode.