Home Postcode finder VIC Holmesglen Holmesglen postcode VIC Holmesglen is a locality in Victoria covered by postcode 3148. Postcode 3148 State or territory Victoria (VIC) Region Mulgrave Add a free Holmesglen business listing Be the first listing in Holmesglen Common questionsWhat is the postcode for Holmesglen?Holmesglen, VIC has the postcode 3148.What state is Holmesglen in?Holmesglen is in Victoria (VIC).Does postcode 3148 cover more than one suburb?Yes. Postcode 3148 covers 4 localities, so the postcode alone does not identify Holmesglen. Browse other postcodes in Victoria, or widen the search to every Australian postcode.