Home Postcodes by state SA 5241 Postcode 5241 5241 is the postcode for Lobethal, SA. Localities with postcode 5241LobethalSA Postcode 5241 State or territory South Australia (SA) Localities 1 Council area Adelaide Hills Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 5240 · Postcode 5242