Home Postcode finder VIC Coldstream Coldstream postcode VIC Coldstream is a locality in Victoria covered by postcode 3770. Postcode 3770 State or territory Victoria (VIC) Region Ringwood Add a free Coldstream business listing More business listings in Coldstream Businesses in ColdstreamColdstream Primary School12 Kelso St · 03 97391680Hensafe31 Killara Road · 0421305763 Hubert Estate1-3 St Huberts Rd, Coldstream VIC, Australia · 0387561600 Common questionsWhat is the postcode for Coldstream?Coldstream, VIC has the postcode 3770.What state is Coldstream in?Coldstream is in Victoria (VIC).Does postcode 3770 cover more than one suburb?Yes. Postcode 3770 covers 3 localities, so the postcode alone does not identify Coldstream. Browse other postcodes in Victoria, or widen the search to every Australian postcode.