Perumachanahalli is a village in Chintamani tehsil in district of Chikkaballapura, Karnataka, India. As per the data provided by Census of India in 2011, total population of Perumachanahalli was 1,142 which includes 590 males and 552 females. Perumachanahalli covers 294.56 ha area. Pincode of Perumachanahalli is 563128.