Koili Khurd is a village in Chauparan tehsil in district of Hazaribagh, Jharkhand, India. As per the data provided by Census of India in 2011, total population of Koili Khurd was 307 which includes 150 males and 157 females. Koili Khurd covers 64.55 ha area. Pincode of Koili Khurd is 825406.