Home Postcodes by state WA Boulder Boulder postcode WA Boulder is a locality in Western Australia covered by postcode 6432. Postcode 6432 State or territory Western Australia (WA) Region Wa Subs 1 G Flds Council area Kalgoorlie-Boulder Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Add a free Boulder business listing More business listings in Boulder Suburbs near BoulderStraight-line distance between locality centres.FimistonWA 6432 · 0.9 kmSouth BoulderWA 6432 · 0.9 kmVictory HeightsWA 6432 · 1.5 kmSouth KalgoorlieWA 6430 · 2.3 kmTrafalgarWA 6431 · 3.0 kmBrown HillWA 6431 · 3.4 kmKalgoorlieWA 6430 · 3.4 kmSomervilleWA 6430 · 3.9 kmBroadwoodWA 6430 · 4.1 kmWilliamstownWA 6430 · 4.2 kmPiccadillyWA 6430 · 4.6 kmWest KalgoorlieWA 6430 · 5.1 kmDistances to every suburb around Boulder Businesses in BoulderBoulder Primary SchoolLane St · 08 90931295Kalgoorlie School of the AirCnr Piesse & Brookman Sts · 08 90932728O'Connor Education Support CentreJohnston St · 08 90919114 Also in postcode 6432FimistonWA 6432South BoulderWA 6432Victory HeightsWA 6432 Common questionsWhat is the postcode for Boulder?Boulder, WA has the postcode 6432.What state is Boulder in?Boulder is in Western Australia (WA).What council is Boulder in?Boulder is in the Kalgoorlie-Boulder local government area.Does postcode 6432 cover more than one suburb?Yes. Postcode 6432 covers 4 localities, so the postcode alone does not identify Boulder.What suburbs are near Boulder?The closest are Fimiston (0.9 km), South Boulder (0.9 km), Victory Heights (1.5 km), South Kalgoorlie (2.3 km) and Trafalgar (3.0 km). Distances are straight lines between locality centres. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.