List of North American social fraternities by undergraduate membership

This is a list of North American social fraternities by undergraduate membership. Membership figures are based on the most recent statistics published by each fraternity through official annual reports, fact books, or official statistics pages.

List RankFraternityUndergraduate membersYearRef.1Kappa Sigma (ΚΣ)16,000+20252Pi Kappa Alpha (ΠΚΑ)15,000+20253Sigma Chi (ΣΧ)15,000+20254Sigma Alpha Epsilon (ΣΑΕ)13,900+20255Pi Kappa Phi (ΠΚΦ)12,35220256Sigma Phi Epsilon (ΣΦΕ)11,93620257Phi Delta Theta (ΦΔΘ)11,32120258Tau Kappa Epsilon (ΤΚΕ)10,000+20259Sigma Nu (ΣΝ)9,000+202510Beta Theta Pi (ΒΘΠ)8,000+2025

See also

List of North American fraternities by active chapters List of North American fraternities by assets North American Interfraternity Conference List of social fraternities and sororities

Notes Membership figures represent active undergraduate collegiate members as reported by each fraternity. Because organizations publish membership statistics at different times and use different reporting periods, the figures may not reflect the same academic year.

References