Kottamarudur is a village in Tirukkoyilur tehsil in district of Viluppuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kottamarudur was 2,856 which includes 1,482 males and 1,374 females. Kottamarudur covers 517.25 ha area. Pincode of Kottamarudur is 605756.