The Xi Theta Chapter, established by the California State University, Dominguez Hills, School of Nursing, now has over 300 members. An eleven-member steering committee made up of students, faculty, alumni, and community members designed a structure that encourages participation of members throughout California. The Society became a Chapter of Sigma Theta Tau International Honor Society of Nursing in April 1994. 2014 marked the 20 year anniversary for Xi Theta.