Home Postcode finder SA Black Hill Black Hill postcode SA Black Hill is a locality in South Australia covered by postcode 5353. Postcode 5353 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Black Hill business listing Be the first listing in Black Hill Common questionsWhat is the postcode for Black Hill?Black Hill, SA has the postcode 5353.What state is Black Hill in?Black Hill is in South Australia (SA).Does postcode 5353 cover more than one suburb?Yes. Postcode 5353 covers 11 localities, so the postcode alone does not identify Black Hill. Browse other postcodes in South Australia, or widen the search to every Australian postcode.