 According to the 2010 Australian Dairy Herd Improvement Report, the average production of an Illawarra cow is 6733 litres with a butterfat percentage of 3.95% and a protein percentage of 3.29%,

Illawarras are very docile cows that are noted for their longevity.They make good handling cattle for shows and are easy to work with in the dairy.Illawarras can stand weather exceeding 40 degrees Celsius and below 0 degrees Celsius.