midland postcode wa Home ›› Postcode Finder ›› WA ›› Midland Midland local listingsThe suburb of Midland is located in WA and has a postcode of 6056. Free midland business listing! 1Ultra Lube Mechanical Workshop3/350 Great Eastern Hwy, Midland WA 6056, Australia 927420662mycar Tyre & Auto MidlandMidland Gate Shopping Centre Enter off The Crescent, (near Lloyd Street) (08) 6330 74063Thingz274 Great Eastern Hwy, Midland WA 6056, Australia +61 8 9250 2095 View more business listings in midland Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.