Thathalur is a village in Tirukalukundram tehsil in district of Kancheepuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thathalur was 1,609 which includes 812 males and 797 females. Thathalur covers 467.84 ha area. Pincode of Thathalur is 603109.