findon postcode sa Home ›› Postcode Finder ›› SA ›› Findon Findon local listingsThe suburb of Findon is located in SA and has a postcode of 5023. Free findon business listing! 1Findon High SchoolDrummond Ave 08 844579442Nazareth Catholic College176 Crittenden Rd 08 840651003Any Time Fitness - Findon205-209 883450986 View more business listings in findon Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.