walkerston postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Walkerston Walkerston local listingsThe suburb of Walkerston is located in QLD and has a postcode of 4751. Free walkerston business listing! 1St John's Catholic School23 Creek St 07 495924452Walkerston State School1a Dutton St 07 49592220 View more business listings in walkerston Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.