proston postcode qld Home ›› Postcode Finder ›› QLD ›› Proston Proston local listingsThe suburb of Proston is located in QLD and has a postcode of 4613. Free proston business listing! 1Proston State School1 Rodney St 07 41694333 View more business listings in proston Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.