Home Postcode finder VIC Caulfield Junction Caulfield Junction postcode VIC Caulfield Junction is a locality in Victoria covered by postcode 3161. Postcode 3161 State or territory Victoria (VIC) Region Mulgrave Add a free Caulfield Junction business listing More business listings in Caulfield Junction Businesses in Caulfield JunctionLittle LadybagsP O Box 2436 · 0421 807 487 Common questionsWhat is the postcode for Caulfield Junction?Caulfield Junction, VIC has the postcode 3161.What state is Caulfield Junction in?Caulfield Junction is in Victoria (VIC).Does postcode 3161 cover more than one suburb?Yes. Postcode 3161 covers 2 localities, so the postcode alone does not identify Caulfield Junction. Browse other postcodes in Victoria, or widen the search to every Australian postcode.