Home Postcode finder QLD Coolmunda Coolmunda postcode QLD Coolmunda is a locality in Queensland covered by postcode 4387. Postcode 4387 State or territory Queensland (QLD) Region Toowoomba Region Add a free Coolmunda business listing Be the first listing in Coolmunda Common questionsWhat is the postcode for Coolmunda?Coolmunda, QLD has the postcode 4387.What state is Coolmunda in?Coolmunda is in Queensland (QLD).Does postcode 4387 cover more than one suburb?Yes. Postcode 4387 covers 9 localities, so the postcode alone does not identify Coolmunda. Browse other postcodes in Queensland, or widen the search to every Australian postcode.