Kalamarudur is a village in Ulundurpettai tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kalamarudur was 4,738 which includes 2,442 males and 2,296 females. Kalamarudur covers 1081.89 ha area. Pincode of Kalamarudur is 606102.