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 Junior Primary School22 Ungaroo Rd 08 934942902Westminster Primary School30 Marloo Rd 08 934918633Westminster Education Support CentreMarloo Rd 08 93491344 View more business listings in westminster Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.