Chakmahi Urf Milki is a village in Khanpur tehsil in district of Samastipur, Bihar, India. As per the data provided by Census of India in 2011, total population of Chakmahi Urf Milki was 873 which includes 461 males and 412 females. Chakmahi Urf Milki covers 27.6 ha area. Pincode of Chakmahi Urf Milki is 848117.