Home Postcode finder NSW Boomi Boomi postcode NSW Boomi is a locality in New South Wales covered by postcode 2405. Postcode 2405 State or territory New South Wales (NSW) Region NSW North Coast Add a free Boomi business listing More business listings in Boomi Businesses in BoomiBoomi Public School25 Werrina St · 02 67535221 Common questionsWhat is the postcode for Boomi?Boomi, NSW has the postcode 2405.What state is Boomi in?Boomi is in New South Wales (NSW).Does postcode 2405 cover more than one suburb?Yes. Postcode 2405 covers 2 localities, so the postcode alone does not identify Boomi. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.