SI Desert Coast Region
- Includes region news, legislative issues, advocacy tools and techniques, programs and project information.
- http://www.soroptimistdcr.com/

SI Los Angeles
- Includes club and membership information, and calendar. Illustrated with photographs of club projects and activities.
- http://www.soroptimist-losangeles.com/

SI South Lake Tahoe
- Includes club meeting times, information for members, fundraising events, and community service projects including "A Fighting Chance" program.
- http://www.sislt.org/

SI Sierra Pacific Region
- Includes information about Soroptimism, information for members in the region, calendar of events, award applications and news.
- http://www.soroptimistspr.org/

SI Founder Region
- Covers Northern California coast, Hawaii and Guam. Includes list of clubs in the region, programs and online calendar and newsletter.
- http://www.sifounderregion.org/

SI Ramona
- Includes club meeting times, activities, and contact information.
- http://www.orangebook.com/ramona/soroptimist.php3

SI Long Beach
- Service club for professional women in the area of Long Beach, California. Includes the club's community service programs, calendar of events, and membership application.
- http://www.si-longbeach.org/

SI Cloverdale
- Includes club programme and projects, history and members.
- http://www.sonic.net/sciaini/soroptimist/

SI Ceres
- Includes Club meeting information, information for members, fundraising events and community service projects including the Baby Think It Over project.
- http://www.soroptimistspr.org/district4/ceres.html

SI Camino Real
- Includes regional service projects, Helping Hands to assist victims of domestic violence and breast cancer awareness. Online list of clubs, regional news. member resources and Club of the Month space available.
- http://www.caminorealregion.org/