O Karisalkulam is a village in Kamuthi tehsil in district of Ramanathapuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of O Karisalkulam was 2,470 which includes 1,216 males and 1,254 females. O Karisalkulam covers 1262.81 ha area. Pincode of O Karisalkulam is 623603.