Home Postcode finder VIC St Andrews Beach St Andrews Beach postcode VIC St Andrews Beach is a locality in Victoria covered by postcode 3941. Postcode 3941 State or territory Victoria (VIC) Region Frankston Add a free St Andrews Beach business listing Be the first listing in St Andrews Beach Common questionsWhat is the postcode for St Andrews Beach?St Andrews Beach, VIC has the postcode 3941.What state is St Andrews Beach in?St Andrews Beach is in Victoria (VIC).Does postcode 3941 cover more than one suburb?Yes. Postcode 3941 covers 3 localities, so the postcode alone does not identify St Andrews Beach. Browse other postcodes in Victoria, or widen the search to every Australian postcode.