Arjunahalli is a village in Krishnarajanagara tehsil in district of Mysore, Karnataka, India. As per the data provided by Census of India in 2011, total population of Arjunahalli was 1,829 which includes 909 males and 920 females. Arjunahalli covers 553.59 ha area. Pincode of Arjunahalli is 571610.