Ammaiyappan is a village in Kodavasal tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ammaiyappan was 5,084 which includes 2,510 males and 2,574 females. Ammaiyappan covers 403.46 ha area. Pincode of Ammaiyappan is 613701.