Home Postcode finder QLD Kalbar Kalbar postcode QLD Kalbar is a locality in Queensland covered by postcode 4309. Postcode 4309 State or territory Queensland (QLD) Region Western Suburbs Add a free Kalbar business listing More business listings in Kalbar Businesses in KalbarKalbar State SchoolGeorge St · 07 54699333 Common questionsWhat is the postcode for Kalbar?Kalbar, QLD has the postcode 4309.What state is Kalbar in?Kalbar 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 Kalbar. Browse other postcodes in Queensland, or widen the search to every Australian postcode.