NORRISTOWN, Pa. — A sequestered jury from another county will decide the sexual assault case against Bill Cosby, a judge in suburban Philadelphia ruled Monday, rejecting a defense request to move the trial because of worldwide media reports that the actor’s lawyers say brand him as a ‘‘serial rapist.’’

Montgomery County Judge Steven O’Neill will oversee a June 5 trial of charges that Cosby drugged and molested a former Temple University employee in 2004.

His ruling came after lawyers for the 79-year-old TV star argued his trial should be moved to Philadelphia or the Pittsburgh area.

Those cities’ larger, more diverse populations would make it easier to find unbiased jurors, lawyer Brian McMonagle argued, but even then, he said, there was no guarantee Cosby could get a fair hearing.

‘‘Unless you’ve been living under a rock, the message that has been promoted, in insidious fashion, is that Bill Cosby is guilty, and that Bill Cosby is a serial rapist,’’ McMonagle said. ‘‘I do not believe that there’s a place anywhere in this country now where he can receive a fair trial. Not here, not anywhere. I hope I’m wrong.’’

Prosecutors accused the defense of trying to shop for a jury.

In a court filing, District Attorney Kevin Steele called the pretrial publicity argument ‘‘a red herring.’’ He said Cosby couldn’t expect to find a jury anywhere that is ‘‘oblivious’’ to the dozens of sex assault accusations lodged against him by Andrea Constand and others.

‘‘He’s not entitled to a jury that is ignorant of the facts surrounding his case,’’ Steele wrote. ‘‘The publicity that necessarily follows the rich and famous cannot insulate them from prosecution.’’

Prosecutors did not object to bringing an outside jury to Norristown, but fought the bid to move the trial.

They told O’Neill they could surely find a dozen unbiased jurors in counties with fewer than 1 million people, the size sought by the defense.

‘‘It’s not just short on the law, but short on logic,’’ Assistant District Attorney M. Stewart Ryan argued.

Cosby has pleaded not guilty to charges that he sexually assaulted Constand at his suburban Philadelphia home. The Associated Press doesn’t typically identify people who say they are victims of sexual assault unless they have come forward publicly, as Constand has done.

With O’Neill’s decision, the Pennsylvania Supreme Court must now decide where the jurors will be selected.

Monday’s hearing came after the judge dealt a blow to the prosecution by limiting the number of accusers who can testify at the trial. Prosecutors wanted to put 13 more women on the stand to bolster charges that Cosby had drugged and molested women before the 2004 encounter with Constand.

O’Neill ruled Friday that only one of those accusers may testify. She worked for Cosby’s agent at the William Morris agency and said Cosby drugged and molested her during a lunch meeting in Los Angeles in 1996.

In a setback for the defense, O’Neill previously ruled that Cosby’s damaging deposition from Constand’s 2005 lawsuit can be aired in court. Cosby, over four days, described a string of extramarital affairs and liaisons with young women, often after he gave them drugs or alcohol. He called them consensual.

Cosby, once known as ‘‘America’s Dad’’ for his top-rated family sitcom, ‘‘The Cosby Show,’’ which ran from 1984 to 1992, appeared relaxed in his latest court appearance Monday, laughing with aides during breaks.

He has been married to his wife, Camille, for more than 50 years, and has four surviving children. Their only son, Ennis, was killed in 1997 by a man attempting to rob him.