Home Postcode finder QLD Geham Geham postcode QLD Geham is a locality in Queensland covered by postcode 4352. Postcode 4352 State or territory Queensland (QLD) Region Toowoomba Region Add a free Geham business listing Be the first listing in Geham Common questionsWhat is the postcode for Geham?Geham, QLD has the postcode 4352.What state is Geham in?Geham is in Queensland (QLD).Does postcode 4352 cover more than one suburb?Yes. Postcode 4352 covers 71 localities, so the postcode alone does not identify Geham. Browse other postcodes in Queensland, or widen the search to every Australian postcode.