Sampathinallur is a village in Maduranthakam tehsil in district of Kancheepuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sampathinallur was 257 which includes 137 males and 120 females. Sampathinallur covers 62.02 ha area. Pincode of Sampathinallur is 603111.