Home Postcodes by state WA 6365 Postcode 6365 6365 is the postcode for 4 localities in WA: Jilakin, Jitarning, Kulin and Kulin West. Localities with postcode 6365JilakinWAJitarningWAKulinWAKulin WestWA Postcode 6365 State or territory Western Australia (WA) Localities 4 Council area Kulin Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 6363 · Postcode 6367