California's 18th senatorial district

The district stretches along the Mexico–United States border and predominantly includes rural Imperial Valley and areas of California along the Colorado River, including Needles, Blythe, and Indio. However, most of the district's population is in southern San Diego County, including Imperial Beach, Otay Mesa, Chula Vista, National City, Lincoln Acres, Bonita, the Tijuana River Valley, and the southeastern side of San Diego. == Election results from statewide races ==

== List of senators representing the district ==

Due to redistricting, the 18th district has been moved around different parts of the state. The current iteration resulted from the 2021 redistricting by the California Citizens Redistricting Commission. == Election results (1990-present) ==

2022 2018 2014 2010 2006 2002 1998 1994 1990 == See also ==