Home Postcode finder SA Aldgate Aldgate postcode SA Aldgate is a locality in South Australia covered by postcode 5154. Postcode 5154 State or territory South Australia (SA) Region Sa Subs Near 2 Add a free Aldgate business listing More business listings in Aldgate Businesses in AldgateAldgate Primary School3 Fairview Rd · 08 83392377Bubba Pizza 218 Mount Barker Rd · 08 8339 2001The Hills Montessori School12 Anderson Rd · 08 83396842 Common questionsWhat is the postcode for Aldgate?Aldgate, SA has the postcode 5154.What state is Aldgate in?Aldgate is in South Australia (SA).Does postcode 5154 cover more than one suburb?No. Postcode 5154 covers Aldgate only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in South Australia, or widen the search to every Australian postcode.