Kalayanapuram is a village in Thiruvaiyaru tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Kalayanapuram was 3,388 which includes 1,672 males and 1,716 females. Kalayanapuram covers 60.62 ha area. Pincode of Kalayanapuram is 613201.