Home Postcode finder NSW Gloucester Gloucester postcode NSW Gloucester is a locality in New South Wales covered by postcode 2422. Postcode 2422 State or territory New South Wales (NSW) Region Hunter Add a free Gloucester business listing More business listings in Gloucester Businesses in GloucesterGloucester High School129 Ravenshaw St · 02 65581605Gloucester Public School5 Hume St · 02 65581303St Joseph's School53 Denison St · 02 65581555 Common questionsWhat is the postcode for Gloucester?Gloucester, NSW has the postcode 2422.What state is Gloucester in?Gloucester is in New South Wales (NSW).Does postcode 2422 cover more than one suburb?Yes. Postcode 2422 covers 45 localities, so the postcode alone does not identify Gloucester. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.