active chapters

alpha chapter

School: University of California, Berkeley

Established: 1946

@berkeleysopi

Beta Chapter

School: San Francisco State University

Established: 1930, reorganized in 1988

@sfsopi

Gamma Chapter

School: San Jose State University

Established: 1992

@sjsopi

Delta cHAPTER

School: University of California, Davis

Established: 1993

@davissopi

Epsilon chapter

School:  California State University, Sacramento

Established: 1993

@sacsopi

zeta Chapter

School: University of California, Santa Cruz

Established: 1995

@ucscsopi

Theta chapter

School: University of California, Irvine

Established: 2001

@irvinesopi

iota Chapter

School: Pennsylvania State University

Established: 2001

@psusopi

kappa chapter

School: University of California, San Diego

Established: 2002

@ucsdsopi

mu Chapter

School: University of California, Riverside

Established: 2003

@ucrsopi

Nu chapter

School: Binghamton University, State University of New York

Established: 2008

@bingsopi