Home Postcode finder QLD Missen Flat Missen Flat postcode QLD Missen Flat is a locality in Queensland covered by postcode 4361. Postcode 4361 State or territory Queensland (QLD) Region Toowoomba Region Add a free Missen Flat business listing Be the first listing in Missen Flat Common questionsWhat is the postcode for Missen Flat?Missen Flat, QLD has the postcode 4361.What state is Missen Flat in?Missen Flat is in Queensland (QLD).Does postcode 4361 cover more than one suburb?Yes. Postcode 4361 covers 16 localities, so the postcode alone does not identify Missen Flat. Browse other postcodes in Queensland, or widen the search to every Australian postcode.