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! 1Corridors College276 Great Eastern Hwy 08 925062222Bupa MidlandShop T062, Midland Gate, 274 Great Eastern Highway, Midland WA 6056 1866 812 5353Snap Midland60 Helena Street (08) 9250 2277 View more business listings in midland Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.