Usman is a town and the administrative center of Usmansky District in Lipetsk Oblast, Russia, located on the Usman River, 75 kilometers so…Usman is a town and the administrative center of Usmansky District in Lipetsk Oblast, Russia, located on the Usman River, 75 kilometers south of Lipetsk, the administrative center of the oblast. Population: 19,662 ; 18,685 ; 20,133 ; 20,878.