merredin postcode wa Home ›› Postcode Finder ›› WA ›› Merredin Merredin local listingsThe suburb of Merredin is located in WA and has a postcode of 6415. Free merredin business listing! 1Merredin Senior High SchoolWoolgar Ave 08 904109002North Merredin Primary School22 Coronation St 08 904111403South Merredin Primary SchoolCaw St 08 90411368 View more business listings in merredin Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.