Home Postcode finder VIC Millgrove Millgrove postcode VIC Millgrove is a locality in Victoria covered by postcode 3799. Postcode 3799 State or territory Victoria (VIC) Region Ringwood Add a free Millgrove business listing More business listings in Millgrove Businesses in MillgroveMillwarra Primary School18-20 Cavanagh Rd · 03 59662518 Common questionsWhat is the postcode for Millgrove?Millgrove, VIC has the postcode 3799.What state is Millgrove in?Millgrove is in Victoria (VIC).Does postcode 3799 cover more than one suburb?Yes. Postcode 3799 covers 7 localities, so the postcode alone does not identify Millgrove. Browse other postcodes in Victoria, or widen the search to every Australian postcode.