gwelup postcode wa Home ›› Postcode Finder ›› WA ›› Gwelup Gwelup local listingsThe suburb of Gwelup is located in WA and has a postcode of 6018. Free gwelup business listing! 1Xterminate5 Lagonda Drive, Gwelup WA, Australia 1300 455 1632Lake Gwelup Primary School59 Porter St 08 94462674 View more business listings in gwelup Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.