blyth postcode sa Home ›› Postcode Finder ›› SA ›› Blyth Blyth local listingsThe suburb of Blyth is located in SA and has a postcode of 5462. Free blyth business listing! 1Blyth Primary SchoolAugust St 08 88445195 View more business listings in blyth Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.