Nallappanahalli is a village in Sidlaghatta tehsil in district of Chikkaballapura, Karnataka, India. As per the data provided by Census of India in 2011, total population of Nallappanahalli was 668 which includes 330 males and 338 females. Nallappanahalli covers 352.59 ha area. Pincode of Nallappanahalli is 562104.