A quarter-century after September 11, the Muslim American community has more than doubled in size and gained visible civic power, yet a new Pew Research Center data essay published September 3, 2026, reveals a striking generational divide: US-born and younger Muslims are asserting their American identity and demanding social change far more forcefully than the immigrant generation before them.
A community transformed by growth
The Muslim population in the United States has grown from 2.4 million in 2007 to about 5.5 million today. About 35% of Muslim adults are between ages 18 and 29, making them significantly younger than other Americans.
That relative youth is a direct product of immigration patterns and higher birth rates. It has produced a generation that came of age entirely in post-9/11 America rather than living through the attacks as adults.
There are now four Muslim members of Congress, with a fifth about to join, compared with zero in 2001. And in New York, where the twin towers fell on 9/11, Zohran Mamdani was inaugurated this year as the city’s first Muslim mayor.
The generational fault line on discrimination
The Pew essay draws on a quarter-century of surveys, federal hate-crime statistics, an independent mosque count, and research by other organizations.
One finding stands out: US-born Muslims are more likely than immigrant Muslims to say there is a lot of anti-Muslim discrimination in America, and more likely to say they have personally experienced it.
Immigrant Muslims have historically been more likely to describe Americans as generally friendly toward them. Researchers interpret this not as a contradiction but as different reference points: immigrants often compare the US to conditions they left behind, while the American-born generation measures the country against its own stated ideals.
The report describes one US-born Muslim woman who said the older immigrant generation tends to stay quiet on these issues, while she, born here, sees it as her place to change things for the better. That cross-generational gap mirrors broader social-distance patterns researchers have documented across American life.
Public perception moves in the wrong direction
In March 2002, 25% of US adults said Islam is more likely than other religions to encourage violence. Today that figure is 51%.
In a spring 2026 survey, 43% of US adults said Muslims are less patriotic than other Americans, and 42% said Muslim Americans have a negative impact on the country.
Hate-crime data tell a similarly stubborn story. The FBI’s annual tally of hate crimes against Muslims spiked in 2001, rising to 481 that year, up from 28 in 2000. Since then, it has fluctuated widely, from a low of 95 in 2021 to a high of 307 in 2016, but has never returned to pre-9/11 levels.
History, not memory, for the youngest adults
Ten percent of US adults today were born after 2001. A majority of adults ages 18 to 24 say they first learned about the attacks in class or through schoolwork.
For Muslim Americans in that age bracket, September 11 is history, not lived experience, yet it still defines how much of the country perceives them.
US Muslims tend to be younger and more highly educated than other Americans, while remaining similar to Christians on many measures of religiousness. That combination points to a community integrating on its own terms while still navigating assumptions it did not create. How generational identity shapes perceptions of what is normal in daily culture is a pattern Pew has documented well beyond the Muslim American community.
The full essay was led by principal researcher Besheer Mohamed and published by the Pew Research Center on September 3, 2026.
