Home Postcodes by state NT 0836 Postcode 0836 0836 is the postcode for 3 localities in NT: Girraween, Herbert and Humpty Doo. Localities with postcode 0836GirraweenNTHerbertNTHumpty DooNT Postcode 0836 State or territory Northern Territory (NT) Localities 3 Council area Litchfield Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 0835 · Postcode 0837