blanchetown postcode sa Home ›› Postcode Finder ›› SA ›› Blanchetown Blanchetown local listingsThe suburb of Blanchetown is located in SA and has a postcode of 5357. Free blanchetown business listing! 1Blanchetown Primary SchoolGodley St 08 85405041 View more business listings in blanchetown Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.