Home Postcode finder SA Mobilong Mobilong postcode SA Mobilong is a locality in South Australia covered by postcode 5253. Postcode 5253 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Mobilong business listing Be the first listing in Mobilong Common questionsWhat is the postcode for Mobilong?Mobilong, SA has the postcode 5253.What state is Mobilong in?Mobilong is in South Australia (SA).Does postcode 5253 cover more than one suburb?Yes. Postcode 5253 covers 25 localities, so the postcode alone does not identify Mobilong. Browse other postcodes in South Australia, or widen the search to every Australian postcode.