Chillamathur is a village in Naidupet tehsil in district of Sri Potti Sriramulu Nellore, Andhra Pradesh, India. As per the data provided by Census of India in 2011, total population of Chillamathur was 1,157 which includes 591 males and 566 females. Chillamathur covers 460 ha area. Pincode of Chillamathur is 524126.