Kottanatham is a village in Vilathikulam tehsil in district of Thoothukkudi, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kottanatham was 539 which includes 279 males and 260 females. Kottanatham covers 423.53 ha area. Pincode of Kottanatham is 628907.