portsmith postcode qldch Home ›› Postcode Finder ›› QLDCH ›› Portsmith Portsmith local listingsThe suburb of Portsmith is located in QLD and has a postcode of 4870. Free portsmith business listing! 1Norweld139-143 Hartley Street, Portsmith QLD, Australia 07 403547222Intrust Groupshed 2/49-55 Cook St, Portsmith Queensland 4870, Australia (07) 4049 28673cairns car mechanicsKnight Street, Portsmith QLD 4870, Australia 0482 077 375 View more business listings in portsmith Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.