Oochanahalli 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 Oochanahalli was 434 which includes 220 males and 214 females. Oochanahalli covers 192.58 ha area. Pincode of Oochanahalli is 571426.