Home Postcode finder VIC Streatham Streatham postcode VIC Streatham is a locality in Victoria covered by postcode 3351. Postcode 3351 State or territory Victoria (VIC) Region Vic Country Add a free Streatham business listing Be the first listing in Streatham Common questionsWhat is the postcode for Streatham?Streatham, VIC has the postcode 3351.What state is Streatham in?Streatham is in Victoria (VIC).Does postcode 3351 cover more than one suburb?Yes. Postcode 3351 covers 27 localities, so the postcode alone does not identify Streatham. Browse other postcodes in Victoria, or widen the search to every Australian postcode.