Ernamangalam is a village in Polur tehsil in district of Tiruvannamalai, Tamil Nadu, India. As per the data provided by Census of India in 2011, total population of Ernamangalam was 1,079 which includes 559 males and 520 females. Ernamangalam covers 161.29 ha area. Pincode of Ernamangalam is 606908.