Home Postcode finder QLD Kents Lagoon Kents Lagoon postcode QLD Kents Lagoon is a locality in Queensland covered by postcode 4309. Postcode 4309 State or territory Queensland (QLD) Region Western Suburbs Add a free Kents Lagoon business listing Be the first listing in Kents Lagoon Common questionsWhat is the postcode for Kents Lagoon?Kents Lagoon, QLD has the postcode 4309.What state is Kents Lagoon in?Kents Lagoon 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 Kents Lagoon. Browse other postcodes in Queensland, or widen the search to every Australian postcode.