Home Postcode finder VIC Brunswick Lower Brunswick Lower postcode VIC Brunswick Lower is a locality in Victoria covered by postcode 3056. Postcode 3056 State or territory Victoria (VIC) Region Preston Add a free Brunswick Lower business listing Be the first listing in Brunswick Lower Common questionsWhat is the postcode for Brunswick Lower?Brunswick Lower, VIC has the postcode 3056.What state is Brunswick Lower in?Brunswick Lower is in Victoria (VIC).Does postcode 3056 cover more than one suburb?Yes. Postcode 3056 covers 3 localities, so the postcode alone does not identify Brunswick Lower. Browse other postcodes in Victoria, or widen the search to every Australian postcode.