singleton postcode wa Home ›› Postcode Finder ›› WA ›› Singleton Singleton local listingsThe suburb of Singleton is located in WA and has a postcode of 6175. Free singleton business listing! 1Singleton Primary SchoolNaval Ave 08 953731992AZAP Electrical5 0422 895 0943Mandurah Wreckers- Car Scrappers PerthMandurah Rd 0499223248 View more business listings in singleton Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.