wilcannia postcode nswst Home ›› Postcode Finder ›› NSWST ›› Wilcannia Wilcannia local listingsThe suburb of Wilcannia is located in NSW and has a postcode of 2836. Free wilcannia business listing! 1St Therese's Community Primary SchoolLot 3711 Warrali Ave 08 809159332Wilcannia Central SchoolHood St 08 80915801 View more business listings in wilcannia Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.