newdegate postcode wa Home ›› Postcode Finder ›› WA ›› Newdegate Newdegate local listingsThe suburb of Newdegate is located in WA and has a postcode of 6355. Free newdegate business listing! 1Newdegate Primary SchoolMitchell St 08 98711600 View more business listings in newdegate Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.