Home Postcode finder VIC Doncaster Heights Doncaster Heights postcode VIC Doncaster Heights is a locality in Victoria covered by postcode 3109. Postcode 3109 State or territory Victoria (VIC) Region Ringwood Add a free Doncaster Heights business listing More business listings in Doncaster Heights Businesses in Doncaster HeightsLuna EventsPO Box 4292 · (03) 9891 6833 Common questionsWhat is the postcode for Doncaster Heights?Doncaster Heights, VIC has the postcode 3109.What state is Doncaster Heights in?Doncaster Heights is in Victoria (VIC).Does postcode 3109 cover more than one suburb?Yes. Postcode 3109 covers 4 localities, so the postcode alone does not identify Doncaster Heights. Browse other postcodes in Victoria, or widen the search to every Australian postcode.