mortdale postcode nswst Home ›› Postcode Finder ›› NSWST ›› Mortdale Mortdale local listingsThe suburb of Mortdale is located in NSW and has a postcode of 2223. Free mortdale business listing! 1Carinya Special SchoolColbourne Ave 02 958028522Mortdale Public SchoolColebourne St 02 958052443Penshurst West Public School563-579 Forest Rd 02 95704602 View more business listings in mortdale Search and find other Postcodes in New South Wales or widen the search to Postcodes in Australia.