Fraternities have existed on American college campuses since the nation’s founding. By mapping thousands of chapters across 794 campuses, we determined which fraternities are most common in each state. Alpha Phi Alpha, which was founded at Cornell in 1906, has at least 290 active chapters, more than any other fraternity, according to data available on GreekRank.com.
Kappa Sigma dominates the South and Northwest. It is the most common fraternity in nine states. Tau Kappa Epsilon and Alpha Phi Alpha–a historically African-American fraternity–tie for second place, each taking six states across the eastern U.S. Sigma Alpha Epsilon’s dominance in the West comes into sharper focus when searching for the fraternity’s chapters.
GreekRank–a site that ranks fraternities and sororities–provides active chapter locations for 80 social and professional fraternities across 794 colleges. No other aggregated data is publicly available on fraternities. Chapter locations published on fraternity websites report suspended and inactive chapters inconsistently, and membership numbers are even harder to locate, making anything beyond a geographic comparison difficult.
Active chapters are aggregated by state to determine winners. When fraternities tie for chapter numbers, like in Alaska with fewer campuses to extend influence, the most senior fraternity takes first place.
- How to Help Victims of the Texas School Shooting
- TIME's 100 Most Influential People of 2022
- What the Buffalo Tragedy Has to Do With the Effort to Overturn Roe
- Column: The U.S. Failed Miserably on COVID-19. Canada Shows It Didn't Have to Be That Way
- N.Y. Will Soon Require Businesses to Post Salaries in Job Listings. Here's What Happened When Colorado Did It
- The 46 Most Anticipated Movies of Summer 2022
- ‘We Are in a Moment of Reckoning.’ Amanda Nguyen on Taking the Fight for Sexual Violence Survivors to the U.N.