Marappanahalli is a village in Turuvekere tehsil in district of Tumkur, Karnataka, India. As per the data provided by Census of India in 2011, total population of Marappanahalli was 329 which includes 156 males and 173 females. Marappanahalli covers 195.47 ha area. Pincode of Marappanahalli is 572224.