Home Postcode finder QLD Killaloe Killaloe postcode QLD Killaloe is a locality in Queensland covered by postcode 4877. Postcode 4877 State or territory Queensland (QLD) Region North QLD Add a free Killaloe business listing Be the first listing in Killaloe Common questionsWhat is the postcode for Killaloe?Killaloe, QLD has the postcode 4877.What state is Killaloe in?Killaloe is in Queensland (QLD).Does postcode 4877 cover more than one suburb?Yes. Postcode 4877 covers 6 localities, so the postcode alone does not identify Killaloe. Browse other postcodes in Queensland, or widen the search to every Australian postcode.