mackay postcode qldgu Home ›› Postcode Finder ›› QLDGU ›› Mackay Mackay local listingsThe suburb of Mackay is located in QLD and has a postcode of 4740. Free mackay business listing! 1Clean Feeling45 River Street, Mackay QLD, Australia 07 4998 52502Tropical Coast Plumbing Mackay14B Gordon Street, Mackay Queensland 4740, Australia 07 4849 45183Mackay Roof Restorationunit 2/26 Victoria St, Mackay Queensland 4740, Australia (07) 4058 8488 View more business listings in mackay Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.