middlemount postcode qldga Home ›› Postcode Finder ›› QLDGA ›› Middlemount Middlemount local listingsThe suburb of Middlemount is located in QLD and has a postcode of 4746. Free middlemount business listing! 1Middlemount Community SchoolJames Randell Drive 07 49812333 View more business listings in middlemount Search and find other Postcodes in Queensland or widen the search to Postcodes in Australia.