Chapter History

Sigma Kappa has served as a sisterhood, a home-away-from-home, a support system and an opportunity for growth for Cal Poly women since our chapter was founded on campus in 1973. Epsilon Omega takes pride in being the first women’s Greek organization at Cal Poly.

Our sisters form lifelong bonds based on our shared values of friendship, loyalty, personal growth and service. We are leaders, friends, scholars and volunteers. Together, with our diverse interests and strengths, we create an unbreakable bond that is truly unique. 

National history


Sigma Kappa was founded on November 9, 1874 at Colby College, in Waterville, Maine. Colby College was the first college in New England to admit women on an equal basis as male students.

During this period of change for women, they were insulted, boycotted, and denied a share of the more prized college rights.

In 1871, Mary Caffrey Low was the first woman admitted to Colby College. Low, along with Elizabeth Gorham Hoag, Ida Fuller, Frances Elliott Mann Hall, and Louise Helen Coburn, formed Sigma Kappa Sorority.

Our founders were courageous and determined to make a place for women in the collegiate world. This feeling inspired the formation of  on the basis of scholarship, friendship, mutual interests, and ideals. 

Today, Sigma Kappas across the nation strive to honor our founders everyday and serve their purpose loyally & well.

Learn more about our national history on the official Sigma Kappa website!

our Chapter house


615 Grand Ave, San Luis Obispo, California 93401

Nicknamed by our sisters "The Sigma Kastle," our house has served as a second home to generations of Sigma Kappas. Located at 615 Grand Ave, the Sigma Kappa house lies in the heart of our beautiful city - a perfect distance between the Cal Poly campus and downtown San Luis Obispo.

With themed rooms, a beautiful backyard, a porch swing and plenty of space, this house is the ideal place for our members to live and grow. We hold informal meetings, backyard barbecues, karaoke sessions, movie nights and so much more at the Kastle.