Home Postcodes by state WA 6642 Postcode 6642 6642 is the postcode for 5 localities in WA: Angelo River, Capricorn, Kumarina, Meekatharra and Peak Hill. Localities with postcode 6642Angelo RiverWACapricornWAKumarinaWAMeekatharraWAPeak HillWA Postcode 6642 State or territory Western Australia (WA) Localities 5 Council area Meekatharra Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6640 · Postcode 6646