Home Postcode finder VIC Marnoo West Marnoo West postcode VIC Marnoo West is a locality in Victoria covered by postcode 3387. Postcode 3387 State or territory Victoria (VIC) Region Vic Far Country Add a free Marnoo West business listing Be the first listing in Marnoo West Common questionsWhat is the postcode for Marnoo West?Marnoo West, VIC has the postcode 3387.What state is Marnoo West in?Marnoo West is in Victoria (VIC).Does postcode 3387 cover more than one suburb?Yes. Postcode 3387 covers 11 localities, so the postcode alone does not identify Marnoo West. Browse other postcodes in Victoria, or widen the search to every Australian postcode.