Valaiyapettai is a village in Kumbakonam tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Valaiyapettai was 5,864 which includes 2,929 males and 2,935 females. Valaiyapettai covers 400.46 ha area. Pincode of Valaiyapettai is 612702.