Nihalbhag is a village in Kochadhamin tehsil in district of Kishanganj, Bihar, India. As per the data provided by Census of India in 2011, total population of Nihalbhag was 2,190 which includes 1,151 males and 1,039 females. Nihalbhag covers 168.22 ha area. Pincode of Nihalbhag is 855115.