westminster postcode wa Home ›› Postcode Finder ›› WA ›› Westminster Westminster local listingsThe suburb of Westminster is located in WA and has a postcode of 6061. Free westminster business listing! 1Westminster Education Support CentreMarloo Rd 08 934913442St Gerard's Primary School31 Changton Way 08 934987063Westminster Junior Primary School22 Ungaroo Rd 08 93494290 View more business listings in westminster Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.