Thummanahalli 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 Thummanahalli was 1,070 which includes 549 males and 521 females. Thummanahalli covers 143.66 ha area. Pincode of Thummanahalli is 562105.