Home Postcode finder VIC Strathewen Strathewen postcode VIC Strathewen is a locality in Victoria covered by postcode 3099. Postcode 3099 State or territory Victoria (VIC) Region Melbourne North West Add a free Strathewen business listing Be the first listing in Strathewen Common questionsWhat is the postcode for Strathewen?Strathewen, VIC has the postcode 3099.What state is Strathewen in?Strathewen is in Victoria (VIC).Does postcode 3099 cover more than one suburb?Yes. Postcode 3099 covers 5 localities, so the postcode alone does not identify Strathewen. Browse other postcodes in Victoria, or widen the search to every Australian postcode.