Ko Adhanur is a village in Virudhachalam tehsil in district of Cuddalore, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ko Adhanur was 2,506 which includes 1,264 males and 1,242 females. Ko Adhanur covers 326.79 ha area. Pincode of Ko Adhanur is 606001.