Kusum Desar is a village in Ratangarh tehsil in district of Churu, Rajasthan, India. As per the data provided by Census of India in 2011, total population of Kusum Desar was 1,767 which includes 897 males and 870 females. Kusum Desar covers 1264 ha area. Pincode of Kusum Desar is 331022.