Oliamangalam is a village in Ponnamaravathi tehsil in district of Pudukkottai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Oliamangalam was 3,886 which includes 1,923 males and 1,963 females. Oliamangalam covers 1355.79 ha area. Pincode of Oliamangalam is 621308.