Derdi Janbai is a village in Lathi tehsil in district of Amreli, Gujarat, India. As per the data provided by Census of India in 2011, total population of Derdi Janbai was 2,924 which includes 1,494 males and 1,430 females. Derdi Janbai covers 1633.35 ha area. Pincode of Derdi Janbai is 365421.