Sirumalaikkottai is a village in Tiruvadanai tehsil in district of Ramanathapuram, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Sirumalaikkottai was 2,712 which includes 1,402 males and 1,310 females. Sirumalaikkottai covers 1673.75 ha area. Pincode of Sirumalaikkottai is 623308.