Home Postcodes by state WA Lagrange Lagrange postcode WA Lagrange is a locality in Western Australia covered by postcode 6725. Postcode 6725 State or territory Western Australia (WA) Region North West Suburbs Council area Broome Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Lagrange business listing Be the first listing in Lagrange Also in postcode 6725BilingurrWA 6725BroomeWA 6725Dampier PeninsulaWA 6725DjugunWA 6725Eighty Mile BeachWA 6725GingerahWA 6725MinyirrWA 6725RoebuckWA 6725WaterbankWA 6725 Common questionsWhat is the postcode for Lagrange?Lagrange, WA has the postcode 6725.What state is Lagrange in?Lagrange is in Western Australia (WA).What council is Lagrange in?Lagrange is in the Broome local government area.Does postcode 6725 cover more than one suburb?Yes. Postcode 6725 covers 10 localities, so the postcode alone does not identify Lagrange. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.