Errahalli is a village in Krishnagiri tehsil in district of Krishnagiri, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Errahalli was 10,749 which includes 5,405 males and 5,344 females. Errahalli covers 851.99 ha area. Pincode of Errahalli is 635112.