ethelton postcode sa Home ›› Postcode Finder ›› SA ›› Ethelton Ethelton local listingsThe suburb of Ethelton is located in SA and has a postcode of 5015. Free ethelton business listing! 1Asdfads50 Gloucester Avenue 5452432Portside Christian School1 Causeway Rd 08 83415133 View more business listings in ethelton Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.