Rathnapuri is a village in Hunsur tehsil in district of Mysore, Karnataka, India. As per the data provided by Census of India in 2011, total population of Rathnapuri was 2,782 which includes 1,373 males and 1,409 females. Rathnapuri covers 906.64 ha area. Pincode of Rathnapuri is 571189.