Manik Chauk is a village in Runisaidpur tehsil in district of Sitamarhi, Bihar, India. As per the data provided by Census of India in 2011, total population of Manik Chauk was 28,097 which includes 14,879 males and 13,218 females. Manik Chauk covers 1957.2 ha area. Pincode of Manik Chauk is 843323.