Home Postcode finder NSW Mulgoa Mulgoa postcode NSW Mulgoa is a locality in New South Wales covered by postcode 2745. Postcode 2745 State or territory New South Wales (NSW) Region Nepean Add a free Mulgoa business listing More business listings in Mulgoa Businesses in MulgoaAV Drilling45 Littlefields Road · 0417454434Ken Hale Plumbing Service Pty Ltd203 Fairlight Rd · 0247739275Mulgoa Public School1189 Mulgoa Rd · 02 47738229 Common questionsWhat is the postcode for Mulgoa?Mulgoa, NSW has the postcode 2745.What state is Mulgoa in?Mulgoa is in New South Wales (NSW).Does postcode 2745 cover more than one suburb?Yes. Postcode 2745 covers 6 localities, so the postcode alone does not identify Mulgoa. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.