Ganapathiagraharam I is a village in Papanasam tehsil in district of Thanjavur, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ganapathiagraharam I was 1,955 which includes 975 males and 980 females. Ganapathiagraharam I covers 415.96 ha area. Pincode of Ganapathiagraharam I is 614202.