carnarvon postcode wa Home ›› Postcode Finder ›› WA ›› Carnarvon Carnarvon local listingsThe suburb of Carnarvon is located in WA and has a postcode of 6701. Free carnarvon business listing! 1Carnarvon Senior High SchoolCleaver St 08 994160002St Mary Star of the Sea Catholic School21 Johnston St 08 994113283Carnarvon Christian School30 Babbage Island Rd 08 99414533 View more business listings in carnarvon Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.