Hethagonahalli is a village in Krishnarajpet tehsil in district of Mandya, Karnataka, India. As per the data provided by Census of India in 2011, total population of Hethagonahalli was 587 which includes 280 males and 307 females. Hethagonahalli covers 100.92 ha area. Pincode of Hethagonahalli is 571436.