A newly released report finding that Jewish enrollment at Harvard University has fallen to roughly 7% — its lowest level since the pre-World War II era — has sounded alarms among some Jewish leaders, while touching off a debate at Harvard about its accuracy. 

The figure marks a steep decline from a decade ago, when Jewish students made up about twice that share, and represents the lowest proportion among Ivy League schools with available data. The decrease is not reflected at all Ivy Leagues, though: At Princeton, Jews declined at less than a fifth of the rate of their white non-Jewish peers. At Brown and Cornell, Jewish enrollment held or grew over the past decade. 

The 64-page report, “A Narrowing Gate: Jewish Enrollment at Harvard and Its Peers, 1967-2025,” released this week by the university’s official Jewish alumni group, argues that the decline is not simply the byproduct of neutral admissions trends, but reflects a growing “ambivalence” to admitting Jewish students on Harvard’s part. 

“It’s not that Harvard intended [Jewish enrollment] to decline. It’s that they were ambivalent about the decline. We were invisible and therefore irrelevant,” Adrian Ashkenazy, the report’s author and president of the Harvard Jewish Alumni Alliance, told Jewish Insider. 

Jews face several documented structural disadvantages in the admissions process, according to the report, chief among them geography. Harvard has deliberately shifted enrollment away from the Northeast and Mid-Atlantic, it alleges, home to nearly half of all American Jews, with New York state enrollment alone falling from 264 students in 1992 to 160 in 2024. 

An increase in international student enrollment has deepened the effect: The report finds that international students come from a “uniformly and dramatically less Jewish applicant pool,” meaning every percentage point of international student growth decreases the available seats for Jewish students.

Racial and ethnic diversity goals and financial aid present additional headwinds: The vast majority of American Jews are Ashkenazi and check “white” on an application box, placing them outside the diversity categories universities actively recruit. 

Harvard’s access initiative since 2004 recalibrated holistic review to weight “socioeconomic context, parental occupation, and first-generation status as positive factors.” Jewish applicants are, the report finds, “disproportionately higher-income, continuing-generation, and concentrated in coastal urban centers, characteristics that sit on the unfavored side of all four dimensions of this initiative simultaneously.”

The Supreme Court’s decision reversing affirmative action, which was ostensibly meant to reverse these policies, has “made it much harder to pursue diversity for its own sake, which includes a targeted increase in Jewish enrollment,” said Ashkenazy. 

But Ashkenazy argues it’s not a given that these factors have to decrease Jewish enrollment — he offered Brown as a counter-example to Harvard, saying the Rhode Island school had been intentional in its efforts to recruit Jews.

“Brown looked at its Jewish community and decided that maintaining and growing it was consistent with their broader diversity goals — that the Jewish community is not a monolith and that real diversity can be pursued within it. At Harvard we were absent from the equation. At Brown we were integrated into it. That is the difference.”

“The decline at Harvard is a story of absence, not intention,” he continued. “We were crowded out by other admissions priorities. Harvard didn’t measure it, anticipate it or manage it. The Jewish community simply was not a priority.”

“When a decline is steepest at particular institutions, it ceases to be coincidence and looks more like culture,” Rabbi David Wolpe, emeritus rabbi of Sinai Temple in Los Angeles, who served as a visiting scholar at Harvard Divinity School in 2023-24, told JI. Harvard now has “a choice of denial or determination to change the atmosphere and procedures that led us here,” said Wolpe, who stepped down from his position on Harvard’s antisemitism advisory committee in December 2023 due to what he said was an inability to effect change. 

A spokesperson for Harvard told JI that the university “does not collect data on applicants’ shared ancestry or religious identity. Any estimates that exist on applicant data come from external surveys, which vary widely in methodology and cannot reliably measure changes over time, outline differences across schools, or explain application, admission, or enrollment patterns. Harvard continues to fully comply with the law, including Title VI and the Students for Fair Admissions decision, in its admissions policies and practices.”

Harvard “shares the Harvard Jewish Alumni Alliance’s commitment to fostering a vibrant Jewish community at Harvard,” the spokesperson said. “Jewish life on campus remains active and well-supported, with strong participation across student organizations, religious and cultural life, and campus programming. Additionally, over the last few years, Harvard has taken intentional steps to strengthen our campus culture and environment.”

Miriam Elman, executive director of the Academic Engagement Network, said that the report “has provided university leaders with a thoughtful and rigorous analysis.”

“While Harvard has seen a dramatic decline in Jewish undergraduate student enrollment, enrollment at Brown remains high and robust, even though this Ivy League university has also experienced antisemitic incidents in recent years. What explains the difference? It’s because Brown has significantly invested in campus Jewish life and cares about recruiting Jewish students,” Elman told JI.

“For a number of years it has strategically focused on a number of local New England high schools with high Jewish student populations,” Elman continued. “Brown is also initiating a host of educational programs that infuse a welcoming culture that supports Jewish and Zionist students: open inquiry, dialogue across difference and mutual understanding. So, while there are still challenges and room for improvement, Jewish life at Brown is thriving. Harvard should look closely at Brown’s successes.”

Two Jewish leaders on Harvard’s campus expressed skepticism about aspects of the study.

Rabbi Hirschy Zarchi, founder of Harvard Chabad, said that “while the data and studies are admittedly not scientific, they raise important questions.”

“However, because different methods and factors vary across universities — and even within the same institution over time — we don’t have the data to accurately contrast Jewish population figures,” Zarchi told JI. “Additionally, from Chabad’s personal relationships with hundreds of students, we know that many Jewish students at Harvard come from highly assimilated backgrounds who often first discover their Jewish identity and belonging with Chabad on campus. This indicates that the actual number of Jewish students is likely higher than what may surface on non-scientific surveys.”

Rabbi Jason Rubenstein, director of Harvard Hillel, told JI that the study provides a “vitally important” opportunity to better understand why Harvard’s Jewish population is “significantly smaller than similar institutions,” an issue that he said the Harvard Jewish community has been advocating on for several years already. 

Still, “our perception is that each of the last two admitted classes have an appreciably larger number of Jewish students than the preceding classes,” said Rubenstein.

Hillel’s data from last year’s admissions cycle shows the number of students admitted from two prominent New York Modern Orthodox day schools — five from Salanter Akiba Riverdale Academy and five from Ramaz — is high compared to previous generations. 

“Harvard has been speaking with stakeholders for a while about the need to refocus efforts” in outreach to Jewish day schools, said Ashkenazy. “That’s obviously a good thing that they’re starting to prioritize it. On the one hand, it’s a visible win for the university and Jewish community to recruit from Jewish day schools. At the same time, we all have to accept that the percentage of us that goes to Jewish day schools is excruciatingly small as it pertains to our community.” 

Zac Sardi-Santos, a Jewish Harvard senior studying computer science, said the report left him with a question: “If this is true, where are these potential Harvard Jewish students going, and why?”

“But in order to diagnose this issue, we must first prove its existence with transparency and independent review,” said Sardi-Santos. “I do believe it would be in Harvard’s best interest to collect this data and verify if this anomaly is truly the case … especially for Jewish students, in a time when antisemitism on college campuses is increasing.”   

The study draws only on data collected before the Oct. 7, 2023, terrorist attacks in Israel, and therefore does not reflect Jewish enrollment during and after the campus protests and encampments that disrupted many universities.

“I’m hoping the number has stayed stable. What I can say is that Jewish prospective students I’ve spoken with have expressed real hesitation about Harvard since Oct. 7, and that is something the university needs to take seriously,” said Ashkenazy. 

In the aftermath of the attacks and the surge of antisemitism that ensued, Jewish scholars, as well as students and their parents, grappled over whether they should still attend schools such as Columbia and Harvard — two Ivy League campuses that have been beset by controversy over anti-Israel encampments and classroom disruptions, physical assaults of Jewish students and battles with the federal government over an alleged failure to address antisemitism. (While Brown has been relatively quieter, it too was targeted by the Trump administration over antisemitism allegations, and in July 2025 reached a settlement.) 

But declines in Jewish representation have been a persistent and contentious issue at Ivy League institutions well before Oct. 7. In April 2023, Tablet reported that the number of Jews on most major prestigious campuses had been cut in half or more over the past decade, by “new elite doctrines that downplay merit in favor of amorphous definitions of ‘diversity’ and ‘privilege.’”

The issue dates further back, to the 20th century when wealthy, liberal American Jews in the Northeast navigated a system that tried to exclude them. Harvard admitted to having a quota system for Jews in the early 1920s. From the 1920s until the early 1960s, Yale’s administration implemented a series of secret admissions rules that had the intention of keeping the Jewish percentage of the student body at a consistent 10%. 

But eventually, Ivy League doors opened to Jewish students, and the community at Harvard became “a present and vital part of this university for a century,” Ashkenazy told JI. “We have long believed in the importance of building a genuinely diverse university, and that commitment has not changed.”

“We ask only that we remain woven into the university’s social fabric, valued as much as those we have long advocated for. Diversity is not a finite resource. Making room for the Jewish community does not diminish anyone else’s place here. It never has. A university that embraces every other race, religion, and background should understand that better than most.”