An 18-year-old man has been charged with the murder of teenager Leonne Weeks, who was found stabbed to death on a path
At one address a large quantity of controlled drugs and money was recovered.
As a result of the raids, seven males were arrested, aged 17 to mid 30s. All have been bailed to return to the police station on a later date.
The raids were carried out on Monday 26 January.
A spokesman for South Yorkshire Police said: “We continue to take firm action against drug dealers and urge members of the public to come forward with any information they have about suspicious behaviour."
Anyone with information is asked to call police on 101 or Crimestoppers anonymously on 0800 555 111.