Chak Umar Khan is a village in Mahua tehsil in district of Vaishali, Bihar, India. As per the data provided by Census of India in 2011, total population of Chak Umar Khan was 421 which includes 230 males and 191 females. Chak Umar Khan covers 70 ha area. Pincode of Chak Umar Khan is N/A.