Somanahalli is a village in Malavalli tehsil in district of Mandya, Karnataka, India. As per the data provided by Census of India in 2011, total population of Somanahalli was 2,512 which includes 1,300 males and 1,212 females. Somanahalli covers 500.1 ha area. Pincode of Somanahalli is 571429.