Home Postcode finder SA Lochiel Lochiel postcode SA Lochiel is a locality in South Australia covered by postcode 5510. Postcode 5510 State or territory South Australia (SA) Region Sa Subs Near 1 Add a free Lochiel business listing Be the first listing in Lochiel Common questionsWhat is the postcode for Lochiel?Lochiel, SA has the postcode 5510.What state is Lochiel in?Lochiel is in South Australia (SA).Does postcode 5510 cover more than one suburb?No. Postcode 5510 covers Lochiel only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in South Australia, or widen the search to every Australian postcode.