Home Postcode finder VIC Gruyere Gruyere postcode VIC Gruyere is a locality in Victoria covered by postcode 3770. Postcode 3770 State or territory Victoria (VIC) Region Ringwood Add a free Gruyere business listing More business listings in Gruyere Businesses in GruyereGruyere Primary School99 Killara Rd · 03 59649260Yarra Yering4 Briarty Road · 03 5964 9267 Common questionsWhat is the postcode for Gruyere?Gruyere, VIC has the postcode 3770.What state is Gruyere in?Gruyere 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 Gruyere. Browse other postcodes in Victoria, or widen the search to every Australian postcode.