Sol-Iletsky District is an administrative district (raion), one of the thirty-five in Orenburg Oblast, Russia. It is located in the south of the oblast. The area of the district is 5,100 square kilometers (2,000 sq mi). Its administrative center is the town of Sol-Iletsk,. Population: 25,424 ; 28,425 (2002 census); 52,939 (1989 Soviet census).