napperby postcode sa Home ›› Postcode Finder ›› SA ›› Napperby Napperby local listingsThe suburb of Napperby is located in SA and has a postcode of 5540. Free napperby business listing! 1Napperby Primary SchoolOaks Rd 08 86344309 View more business listings in napperby Search and find other Postcodes in South Australia or widen the search to Postcodes in Australia.