monjebup postcode wa Home ›› Postcode Finder ›› WA ›› Monjebup Monjebup local listingsThe suburb of Monjebup is located in WA and has a postcode of 6338. Free monjebup business listing! Get the first free listing in monjebup! Search and find other Postcodes in Western Australia or widen the search to Postcodes in Australia.