lower-southgate postcode nswst Home ›› Postcode Finder ›› NSWST ›› Lower-Southgate Lower Southgate local listingsThe suburb of Lower Southgate is located in NSW and has a postcode of 2460. Free lower southgate business listing! Get the first free listing in lower southgate! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.