Duddanahalli is a village in Koratagere tehsil in district of Tumkur, Karnataka, India. As per the data provided by Census of India in 2011, total population of Duddanahalli was 306 which includes 146 males and 160 females. Duddanahalli covers 109.9 ha area. Pincode of Duddanahalli is 572129.