All of them were middle-aged or over, including two brothers and a 97-year-old woman.
Bowers, who is being treated for gunshot wounds at hospital, faces 29 counts of federal charges over the murder of the worshippers, including hate crimes and illegal use of firearms.
Five of the dead were from Squirrel Hill and the rest were from other parts of Pittsburgh.
The Pittsburgh synagogue gunman spoke of "genocide and his desire to kill Jewish people" during his attack, authorities said Sunday, as they identified his 11 victims and worked to console the living.
In addressing the family members of the victims, the mayor said: "We are here as a community of one for you".
"We've seen a marked uptick in anti-Semitic harassment of political figures and other individuals simply based on their faith", Jonathan Greenblatt, the chief executive and director of the ADL, said on NBC's Meet the Press.
"I've heard the president's comments about how we should arm guards in our synagogues, our churches, our mosques". He did not have a criminal record and was not known to police, law enforcement officials said on Saturday.
"They didn't", Trump told reporters at Joint Base Andrews in Maryland. The youngest of the victims was Cecil's brother David Rosenthal, 54, who also had an intellectual disability. The eldest victim was Rose Mallinger, 97, of Squirrel Hill.
All funds raised will directly go to the Tree of Life Congregation from GoFundMe, according to the GoFundMe page.
The six people injured included four police officers, one of whom was released later Saturday and another "we are praying will be released today", Pittsburgh Police Chief Scott Schubert said.More news: Outspoken Conservative Curt Schilling Snubbed By Red Sox at World Series Ceremony
A tactical team found Bowers on the third floor, where he shot two officers multiple times, an affidavit said.
News of the attack spread quickly through the surrounding neighborhood.
He said he could imagine a scene of pandemonium if the assailant showed up at his temple.
Stephen Cohen, co-president of New Light Congregation, said: "The loss is incalculable".
Gab, which promotes itself as a free-speech alternative to the more heavily policed Twitter and has been a popular gathering space for the alt-right, said it backed up the user data and suspended the account, then told the Federal Bureau of Investigation about the data held by the company.
Mr Bowers had made many anti-Semitic posts online, including one early on Saturday.
"I can't sit by and watch my people get slaughtered", Bowers allegedly wrote before the shooting.
"The idea that that was shattered by this awful act of violence hit me to the core of my soul", Shanken says.
The Anti-Defamation League and Jewish Council for Public Affairs described Saturday's rampage as the deadliest attack on the Jewish community in the history of the United States.