Home Postcode finder NSW Mernot Mernot postcode NSW Mernot 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 Mernot business listing Be the first listing in Mernot Common questionsWhat is the postcode for Mernot?Mernot, NSW has the postcode 2422.What state is Mernot in?Mernot 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 Mernot. Browse other postcodes in New South Wales, or widen the search to every Australian postcode.