walkerston postcode qldru Home ›› Postcode Finder ›› QLDRU ›› Walkerston Walkerston local listingsThe suburb of Walkerston is located in QLD and has a postcode of 4751. Free walkerston business listing! 1Walkerston State School1a Dutton St 07 495922202St John's Catholic School23 Creek St 07 49592445 View more business listings in walkerston Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.