Question: what are the biggest sororities nationally?
Answer: Chi Omega: 300,000 members.
Kappa Alpha Theta: 250,000 members.
Delta Delta Delta: 238,000 members.
Kappa Kappa Gamma: 235,000 members.
Pi Beta Phi : 230,000 members.
(tie) Kappa Delta: 230,000 members.
Delta Zeta: 220,000 members.
Alpha Delta Pi: 215,000 members.