Home Postcodes by state WA Middlesex Middlesex postcode WA Middlesex is a locality in Western Australia covered by postcode 6258. Postcode 6258 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Council area Manjimup Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Middlesex business listing Be the first listing in Middlesex Suburbs near MiddlesexStraight-line distance between locality centres.Smith BrookWA 6258 · 5.8 kmDiamond TreeWA 6258 · 6.1 kmJardeeWA 6258 · 7.3 kmDingupWA 6258 · 7.7 kmManjimupWA 6258 · 8.9 kmEastbrookWA 6260 · 9.7 kmDeanmillWA 6258 · 10.8 kmRingbarkWA 6258 · 13.5 kmUpper WarrenWA 6258 · 13.9 kmBalbarrupWA 6258 · 14.8 kmQuinninupWA 6258 · 14.9 kmCollinsWA 6260 · 15.4 km Also in postcode 6258BalbarrupWA 6258CroweaWA 6258DeanmillWA 6258Diamond TreeWA 6258DingupWA 6258DixvaleWA 6258Donnelly RiverWA 6258GlenoranWA 6258JardeeWA 6258Lake MuirWA 6258LinfarneWA 6258ManjimupWA 6258MordalupWA 6258PalgarupWA 6258PerupWA 6258QuinninupWA 6258RingbarkWA 6258Smith BrookWA 6258Upper WarrenWA 6258WilgarrupWA 6258YanmahWA 6258 Other places called MiddlesexMiddlesexTAS 7306 Common questionsWhat is the postcode for Middlesex?Middlesex, WA has the postcode 6258.What state is Middlesex in?Middlesex is in Western Australia (WA).What council is Middlesex in?Middlesex is in the Manjimup local government area.Does postcode 6258 cover more than one suburb?Yes. Postcode 6258 covers 22 localities, so the postcode alone does not identify Middlesex.What suburbs are near Middlesex?The closest are Smith Brook (5.8 km), Diamond Tree (6.1 km), Jardee (7.3 km), Dingup (7.7 km) and Manjimup (8.9 km). Distances are straight lines between locality centres. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.