Home Postcode finder NSW Coolah Coolah postcode NSW Coolah is a locality in New South Wales covered by postcode 2843. Postcode 2843 State or territory New South Wales (NSW) Region NSW Country West Add a free Coolah business listing More business listings in Coolah Businesses in CoolahCoolah Central School13 Binnia St · 02 63771101Sacred Heart Primary School15 Church St · 02 63771132 Common questionsWhat is the postcode for Coolah?Coolah, NSW has the postcode 2843.What state is Coolah in?Coolah is in New South Wales (NSW).Does postcode 2843 cover more than one suburb?No. Postcode 2843 covers Coolah only, which is unusual - most Australian postcodes cover several localities. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.