Thirumakkottai I is a village in Mannargudi tehsil in district of Thiruvarur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Thirumakkottai I was 2,075 which includes 1,027 males and 1,048 females. Thirumakkottai I covers 775.79 ha area. Pincode of Thirumakkottai I is 614017.