Radhavilagam is a village in Chidambaram tehsil in district of Cuddalore, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Radhavilagam was 1,387 which includes 696 males and 691 females. Radhavilagam covers 84.35 ha area. Pincode of Radhavilagam is 608002.