somerville postcode wa Home ›› Postcode Finder ›› WA ›› Somerville Somerville local listingsThe suburb of Somerville is located in WA and has a postcode of 6430. Free somerville business listing! 1Marketing Academy Group Pty Ltd5 Heston Ct +610427255542 View more business listings in somerville Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.