The top three most popular national sororities, excluding cultural and honor sororities, are Alpha Omicron Pi, Chi Omega and Gamma Phi Beta. The top three most popular sororities, including cultural and honor sororities, are Alpha Kappa Alpha, Delta Sigma Theta and Zeta Phi Beta.
Alpha Omicron Phi, as the largest sorority not including cultural and honor sororities, has over 150,000 initiated members in 191 collegiate chapters. The sorority's motto is "One Motto, One Badge, One Bond, and Singleness of Heart," and its signature color is cardinal red. Its mission is to enrich women's lives through friendship and support.
Alpha Kappa Alpha is the largest sorority, including cultural and honor sororities, with over 265,000 members and 958 collegiate chapters. Founded by nine students at Howard University in 1908, Alpha Kappa Alpha's mission is to advocate social change for equality and equity for all the world's citizens. Its motto is "By Culture and By Merit," and its signature colors are salmon pink and apple green.
Another popular sorority, Chi Omega, has 174 collegiate chapters across North America. Its motto is "Hellenic Culture and Christian Ideals." Notable alumnae include actresses Lucy Liu and Angela Kinsey and U.S. House of Representatives members Virginia Smith, Marsha Blackburn and Patricia Schroeder.