Home Postcode finder QLD Morwincha Morwincha postcode QLD Morwincha is a locality in Queensland covered by postcode 4309. Postcode 4309 State or territory Queensland (QLD) Region Western Suburbs Add a free Morwincha business listing Be the first listing in Morwincha Common questionsWhat is the postcode for Morwincha?Morwincha, QLD has the postcode 4309.What state is Morwincha in?Morwincha is in Queensland (QLD).Does postcode 4309 cover more than one suburb?Yes. Postcode 4309 covers 17 localities, so the postcode alone does not identify Morwincha. Browse other postcodes in Queensland, or widen the search to every Australian postcode.