Ragunathasamudram is a village in Vandavasi tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ragunathasamudram was 1,758 which includes 887 males and 871 females. Ragunathasamudram covers 737.58 ha area. Pincode of Ragunathasamudram is 604503.