Chak Zainab is a village in Bidupur tehsil in district of Vaishali, Bihar, India. As per the data provided by Census of India in 2011, total population of Chak Zainab was 837 which includes 459 males and 378 females. Chak Zainab covers 19 ha area. Pincode of Chak Zainab is N/A.