st-johns-park postcode nswrv Home ›› Postcode Finder ›› NSWRV ›› St-Johns-Park St Johns Park local listingsThe suburb of St Johns Park is located in NSW and has a postcode of 2176. Free st johns park business listing! Get the first free listing in st johns park! Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.