Home Postcodes by state QLD 4491 Postcode 4491 4491 is the postcode for Eulo, QLD. Localities with postcode 4491EuloQLD Postcode 4491 State or territory Queensland (QLD) Localities 1 Council area Paroo Council area based on Australian Bureau of Statistics data (ASGS Edition 3), CC BY 4.0. Postcode 4490 · Postcode 4492