Home Postcode finder VIC Manns Beach Manns Beach postcode VIC Manns Beach is a locality in Victoria covered by postcode 3971. Postcode 3971 State or territory Victoria (VIC) Region Vic Far Country Add a free Manns Beach business listing Be the first listing in Manns Beach Common questionsWhat is the postcode for Manns Beach?Manns Beach, VIC has the postcode 3971.What state is Manns Beach in?Manns Beach is in Victoria (VIC).Does postcode 3971 cover more than one suburb?Yes. Postcode 3971 covers 21 localities, so the postcode alone does not identify Manns Beach. Browse other postcodes in Victoria, or widen the search to every Australian postcode.