Home Postcode finder QLD Forest Lake Forest Lake postcode QLD Forest Lake is a locality in Queensland covered by postcode 4078. Postcode 4078 State or territory Queensland (QLD) Region Heathwood Add a free Forest Lake business listing More business listings in Forest Lake Businesses in Forest LakeBradley Kanaris Photography4780 Forest Lake Boulevard, Forest Lake Brisbane, QLD, Australia · 0409 340 007Dial A Home Doctor20/200 Grand Avenue, Forest Lake QLD, Australia · +61 139999ELDAD Property GroupForest Lake QLD, Australia · 0438 509 094 Common questionsWhat is the postcode for Forest Lake?Forest Lake, QLD has the postcode 4078.What state is Forest Lake in?Forest Lake is in Queensland (QLD).Does postcode 4078 cover more than one suburb?Yes. Postcode 4078 covers 2 localities, so the postcode alone does not identify Forest Lake. Browse other postcodes in Queensland, or widen the search to every Australian postcode.