Obanahalli is a village in Challakere tehsil in district of Chitradurga, Karnataka, India. As per the data provided by Census of India in 2011, total population of Obanahalli was 2,123 which includes 1,084 males and 1,039 females. Obanahalli covers 1083.75 ha area. Pincode of Obanahalli is 577529.