pannawonica postcode wa Home ›› Postcode Finder ›› WA ›› Pannawonica Pannawonica local listingsThe suburb of Pannawonica is located in WA and has a postcode of 6716. Free pannawonica business listing! 1Pannawonica Primary SchoolSports Way 08 91841172 View more business listings in pannawonica Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.