Home Distance tools Surrounding postcodes St Johns Suburbs near St Johns SA Localities around this point, nearest first. Distances are straight-line, so read them as a lower bound on a trip by road. Need a wider radius? Do you need a bigger radius and more results? get in contact today. Other tools Distance between two points Start a new radius search Find a postcode Surrounding localities #SuburbPostcodeStateDistanceMap1St Johns5373SA0.00 kmSt Johns map2Moppa5355SA3.50 kmMoppa map3Koonunga5373SA3.87 kmKoonunga map