Data

1 in 4 Princeton undergraduates tested positive for COVID-19 in 2022. Here’s a look at the numbers.

The caseload for undergraduates — as reported by Princeton’s COVID-19 Dashboard — has reached staggering figures after multiple sharp outbreaks, while the cases from other campus communities have increased slowly.  

The caseload for undergraduates — as reported by Princeton’s COVID-19 Dashboard — has reached staggering figures after multiple sharp outbreaks, while the cases from other campus communities have increased slowly. 

We looked at trends in financial aid across the Ivy League. Here’s what we found.

While the total cost of attending college has increased across the Ivy League, financial aid packages have grown even more quickly. In 2020, 66 percent of Princeton undergraduates applied for financial aid, and the University’s average aid grant covered 86 percent of total costs.

While the total cost of attending college has increased across the Ivy League, financial aid packages have grown even more quickly. In 2020, 66 percent of Princeton undergraduates applied for financial aid, and the University’s average aid grant covered 86 percent of total costs.

After a year of low enrollment, Princeton sees a spike in competition for seats in classes

After an academic year with unusually low undergraduate enrollment at Princeton amid the COVID-19 pandemic, students faced a course registration cycle starkly more competitive than the previous year. The heightened academic selectivity brought an array of challenges for students, especially for those concentrating in or pursuing certificates in popular departments and programs.

After an academic year with unusually low undergraduate enrollment at Princeton amid the COVID-19 pandemic, students faced a course registration cycle starkly more competitive than the previous year. The heightened academic selectivity brought an array of challenges for students, especially for those concentrating in or pursuing certificates in popular departments and programs.

We looked at waitlist acceptance rates for Princeton and seven highly selective schools. Here’s what we found.

Waitlist acceptance rates have varied greatly at the University and many of its peer institutions in recent years. In the last five years alone, Princeton has admitted as many as 101 students from their waitlist and as few as zero.

Waitlist acceptance rates have varied greatly at the University and many of its peer institutions in recent years. In the last five years alone, Princeton has admitted as many as 101 students from their waitlist and as few as zero.

We surveyed the Class of 2025: Here’s what we found

56.3 percent of respondents don’t drink coffee regularly, but 4.4 percent have tried psychedelics.

Inside Princeton’s vaccine clinics: The data on shots administered, and who received them

In a total of 21 vaccine clinics held between April 29 and July 7, 2021, the University administered 7,930 doses of the Pfizer and Johnson & Johnson vaccines.

In a total of 21 vaccine clinics held between April 29 and July 7, 2021, the University administered 7,930 doses of the Pfizer and Johnson & Johnson vaccines.

We asked the Class of 2024 about sex, politics, and income. Here’s what we found.


737 students. 140 charts. 70,000 pieces of data. Dive into our first-ever Princeton Frosh Survey.

ACLU attorney speaks on NSA: 'The Fourth Amendment in the Era of Mass Dataveillance'

The government’s mass call tracking program violates fundamental civil liberties and rights to privacy, Catherine Crump, an attorney with the American Civil Liberties Union’s Speech, Privacy and Technology Project argued in a lecture on Thursday. Crump began the lecture with a simple question: “How many of you have cell phones?” Virtually every hand in the room shot up. “It used to be practically impossible for the government to track you without expending tremendous resources,” Crump added.

Data department targets voters, helped communicate Obama's 2012 campaign message

Data processing played a pivotal role in the Obama campaign’s ability to target and persuade potential voters in the 2012 election, former campaign data director Ethan Roeder argued in a lecture on Thursday evening. Roeder, who served as data director for both the 2008 and 2012 Obama presidential campaigns, explained that his department pioneered the use of vast data collection operations to aggregate open-source information about voters’ preferences so that they could be approached and persuaded by volunteers. Using polling data, consumer data and open voter files the data department created models to predict how likely voters were to vote for Obama or be persuaded to support or volunteer for the campaign. “It’s stunning to me how relatively simple data can give us such an edge in predicting where people are at in terms of voting,” he said. Open voter files in the United States contain simple information like voters’ names, addresses, ages, genders, voting histories, party affiliations, and racial backgrounds.