Keelaiyur is a village in Sirkali tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Keelaiyur was 8,870 which includes 4,447 males and 4,423 females. Keelaiyur covers 896.76 ha area. Pincode of Keelaiyur is 609105.