kincumber-south postcode nswst Home ›› Postcode Finder ›› NSWST ›› Kincumber-South Kincumber South local listingsThe suburb of Kincumber South is located in NSW and has a postcode of 2251. Free kincumber south business listing! Get the first free listing in kincumber south! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.