Home Postcode finder SA Lower Light Lower Light postcode SA Lower Light is a locality in South Australia covered by postcode 5501. Postcode 5501 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Lower Light business listing Be the first listing in Lower Light Common questionsWhat is the postcode for Lower Light?Lower Light, SA has the postcode 5501.What state is Lower Light in?Lower Light is in South Australia (SA).Does postcode 5501 cover more than one suburb?Yes. Postcode 5501 covers 14 localities, so the postcode alone does not identify Lower Light. Browse other postcodes in South Australia, or widen the search to every Australian postcode.