Home Postcode finder QLD Finnie Finnie postcode QLD Finnie is a locality in Queensland covered by postcode 4350. Postcode 4350 State or territory Queensland (QLD) Region Toowoomba Region Add a free Finnie business listing Be the first listing in Finnie Common questionsWhat is the postcode for Finnie?Finnie, QLD has the postcode 4350.What state is Finnie in?Finnie is in Queensland (QLD).Does postcode 4350 cover more than one suburb?Yes. Postcode 4350 covers 43 localities, so the postcode alone does not identify Finnie. Browse other postcodes in Queensland, or widen the search to every Australian postcode.