Postcode 6312 This postcode covers more than one locality. Which one are you after? Boundain Western Australia LGA: Narrogin Dumberning Western Australia LGA: Narrogin Narrogin Western Australia LGA: Narrogin Narrogin Valley Western Australia LGA: Narrogin Nomans Lake Western Australia LGA: Narrogin Toolibin Western Australia LGA: Wickepin