Home Postcode finder QLD O'Connell O'Connell postcode QLD O'Connell is a locality in Queensland covered by postcode 4680. Postcode 4680 State or territory Queensland (QLD) Region Central QLD Add a free O'Connell business listing Be the first listing in O'Connell Common questionsWhat is the postcode for O'Connell?O'Connell, QLD has the postcode 4680.What state is O'Connell in?O'Connell is in Queensland (QLD).Does postcode 4680 cover more than one suburb?Yes. Postcode 4680 covers 41 localities, so the postcode alone does not identify O'Connell. Browse other postcodes in Queensland, or widen the search to every Australian postcode.