Keelaiyur is a village in Kilvelur tehsil in district of Nagapattinam, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Keelaiyur was 3,186 which includes 1,595 males and 1,591 females. Keelaiyur covers 715.08 ha area. Pincode of Keelaiyur is 611103.