Kulathur 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 Kulathur was 4,566 which includes 2,322 males and 2,244 females. Kulathur covers 1526.62 ha area. Pincode of Kulathur is 628903.