The local province of the Phi Mu Alpha Sinfonia Fraternity is Province 22, Southern California. There are currently four active chapters:

• Delta Pi, University of Redlands, Redlands, CA.
• Epsilon Omicron, San Diego State University (CSU), San Diego, CA.
• Kappa Omicron, Cal State Long Beach (CSU), Long Beach, CA.
• Omicron Pi, Cal State Fullerton (CSU), Fullerton, CA.

To access the website of any of the local chapters, please follow the chapter-name links. For information on how to get to each chapter, please follow the university-name links.

The national fraternity's website is at sinfonia.org. The website contains a lot of information on the fraternity, resources for Sinfonians, news, and more.