Home Postcode finder NSW Mosman Mosman postcode NSW Mosman is a locality in New South Wales covered by postcode 2088. Postcode 2088 State or territory New South Wales (NSW) Region St Leonards Add a free Mosman business listing More business listings in Mosman Businesses in Mosman Renee's House Of Designs584 · (02) 9969 7008AB Electrical Mosman3 Clifford St, Mosman NSW 2088, Australia · 0290001584Advanced Dental Care - Dentist Mosman1-3 Gurrigal Street, Mosman NSW, Australia · 0295387031 Common questionsWhat is the postcode for Mosman?Mosman, NSW has the postcode 2088.What state is Mosman in?Mosman is in New South Wales (NSW).Does postcode 2088 cover more than one suburb?Yes. Postcode 2088 covers 2 localities, so the postcode alone does not identify Mosman. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.