Donimalai Township is located in the Bellary district of the southern state of India, Karnataka. According to the 2001 census report, Donimalai Township had a population of 6555. Males constitute 52% of the population and females 48%. In Donimalai Township, 10% of the population is less than six years of age. Donimalai Township has an average literacy rate of 80%, which is higher than the national average literacy rate of 59.5%. The male literacy rate is 86% and, the female literacy rate is 74%.
The mechanised iron ore mines of the National Mineral Development Corporation is located here.